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CN111072511A - Quaternary ammonium salt surfactant and preparation method and application thereof - Google Patents

Quaternary ammonium salt surfactant and preparation method and application thereof Download PDF

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CN111072511A
CN111072511A CN201811212800.4A CN201811212800A CN111072511A CN 111072511 A CN111072511 A CN 111072511A CN 201811212800 A CN201811212800 A CN 201811212800A CN 111072511 A CN111072511 A CN 111072511A
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formula
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integer
optionally substituted
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CN111072511B (en
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乔富林
侯研博
秦冰
江建林
李财富
高敏
余伟发
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Sinopec Research Institute of Petroleum Processing
China Petroleum and Chemical Corp
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China Petroleum and Chemical Corp
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    • C07ORGANIC CHEMISTRY
    • C07CACYCLIC OR CARBOCYCLIC COMPOUNDS
    • C07C235/00Carboxylic acid amides, the carbon skeleton of the acid part being further substituted by oxygen atoms
    • C07C235/02Carboxylic acid amides, the carbon skeleton of the acid part being further substituted by oxygen atoms having carbon atoms of carboxamide groups bound to acyclic carbon atoms and singly-bound oxygen atoms bound to the same carbon skeleton
    • C07C235/04Carboxylic acid amides, the carbon skeleton of the acid part being further substituted by oxygen atoms having carbon atoms of carboxamide groups bound to acyclic carbon atoms and singly-bound oxygen atoms bound to the same carbon skeleton the carbon skeleton being acyclic and saturated
    • C07C235/10Carboxylic acid amides, the carbon skeleton of the acid part being further substituted by oxygen atoms having carbon atoms of carboxamide groups bound to acyclic carbon atoms and singly-bound oxygen atoms bound to the same carbon skeleton the carbon skeleton being acyclic and saturated having the nitrogen atom of at least one of the carboxamide groups bound to an acyclic carbon atom of a hydrocarbon radical substituted by nitrogen atoms not being part of nitro or nitroso groups
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    • C07ORGANIC CHEMISTRY
    • C07CACYCLIC OR CARBOCYCLIC COMPOUNDS
    • C07C245/00Compounds containing chains of at least two nitrogen atoms with at least one nitrogen-to-nitrogen multiple bond
    • C07C245/02Azo compounds, i.e. compounds having the free valencies of —N=N— groups attached to different atoms, e.g. diazohydroxides
    • C07C245/06Azo compounds, i.e. compounds having the free valencies of —N=N— groups attached to different atoms, e.g. diazohydroxides with nitrogen atoms of azo groups bound to carbon atoms of six-membered aromatic rings
    • C07C245/08Azo compounds, i.e. compounds having the free valencies of —N=N— groups attached to different atoms, e.g. diazohydroxides with nitrogen atoms of azo groups bound to carbon atoms of six-membered aromatic rings with the two nitrogen atoms of azo groups bound to carbon atoms of six-membered aromatic rings, e.g. azobenzene
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    • C07ORGANIC CHEMISTRY
    • C07DHETEROCYCLIC COMPOUNDS
    • C07D307/00Heterocyclic compounds containing five-membered rings having one oxygen atom as the only ring hetero atom
    • C07D307/02Heterocyclic compounds containing five-membered rings having one oxygen atom as the only ring hetero atom not condensed with other rings
    • C07D307/34Heterocyclic compounds containing five-membered rings having one oxygen atom as the only ring hetero atom not condensed with other rings having two or three double bonds between ring members or between ring members and non-ring members
    • C07D307/56Heterocyclic compounds containing five-membered rings having one oxygen atom as the only ring hetero atom not condensed with other rings having two or three double bonds between ring members or between ring members and non-ring members with hetero atoms or with carbon atoms having three bonds to hetero atoms with at the most one bond to halogen, e.g. ester or nitrile radicals, directly attached to ring carbon atoms
    • C07D307/68Carbon atoms having three bonds to hetero atoms with at the most one bond to halogen
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Abstract

The invention provides a quaternary ammonium salt surfactant, a preparation method and application thereof. The quaternary ammonium salt surfactant disclosed by the invention has a structure shown as a formula (I):
Figure DDA0001832809920000011
wherein the definition of each group is shown in the specification. The quaternary ammonium salt surfactant can be used as a high-efficiency low-consumption wetting agent for the field of tertiary oil recovery. In tertiary oil recoveryIn the process, the quaternary ammonium salt surfactant can effectively convert the surface of a carbonate reservoir wrapped by crude oil into water wettability or neutral wettability to realize wettability reversal, thereby being beneficial to the improvement of oil washing efficiency.

Description

Quaternary ammonium salt surfactant and preparation method and application thereof
Technical Field
The invention relates to a quaternary ammonium salt surfactant, in particular to a quaternary ammonium salt surfactant with high efficiency and low consumption.
Background
Oligomeric surfactants refer to a class of amphiphilic molecules containing two, three or more amphiphilic moieties in the molecule, wherein the amphiphilic moieties in the molecule are chemically linked together at or near the head group by a linking group. Compared with the traditional single-chain surfactant, the increase of the polymerization degree enables the synergistic effect among a plurality of amphiphilic elements in the oligomeric surfactant molecule to be stronger, thereby showing excellent performances with high efficiency and low consumption, and being expected to become a new-generation surfactant. On the other hand, CN105561865A suggests that branched surfactants have higher oil removing ability and ability to lower oil-water interfacial tension than linear oligomeric surfactants. Therefore, by adjusting the degree of oligomerization and the structure of the linking group, an oligomeric surfactant having excellent properties can be obtained.
At present, the synthesis of the oligomeric quaternary ammonium salt surfactant generally takes multi-level alcohol or multi-level amine as raw materials, and the linear or branched oligomeric quaternary ammonium salt surfactant is prepared through two-step reactions of amidation and quaternization. For example, the literature (Langmuir,2010,26,7922-7927) discloses a method for preparing a dendritic trimeric quaternary ammonium salt surfactant by using tri (2-aminoethyl) amine as a raw material through two steps of reactions of amidation and quaternization. The method has the main problems that chloroacetyl chloride which has high toxicity and is easy to inactivate when meeting water is used in the amidation reaction of polyamine, and the reaction conditions are harsh. In addition, the literature (ColloidsSurf. A,2014,457,374-381) discloses a method for preparing a star-shaped trimeric quaternary ammonium salt surfactant by taking tri (hydroxyethyl) amine as a raw material and through two steps of reactions of amidation and quaternization. The method needs bromoacetyl bromide during amidation reaction, and also has harsh reaction conditions, thus being not beneficial to industrial production.
In general, the method of synthesizing the oligomeric quaternary ammonium salt surfactant by two-step reaction of amidation and quaternization using polyol or polyamine as a starting material has the following disadvantages: (1) the polyamine serving as the starting raw material has strong corrosivity and strong irritation; the reaction activity of the polyhydric alcohol is low, and the solubility of the polyhydric alcohol in an organic solvent is poor; (2) in the reaction process, acyl chloride or acyl bromide with high toxicity is used, and the acyl chloride or acyl bromide is easy to inactivate when meeting water, so that the reaction conditions are harsh. Therefore, it is very critical to further select cheap and green starting materials and optimize the preparation method for expanding the theoretical research and industrial application of the oligomeric quaternary ammonium salt surfactant.
Disclosure of Invention
Aiming at the defects of the prior art, the inventor provides a quaternary ammonium salt surfactant and a preparation method and application thereof through diligent research.
The quaternary ammonium salt surfactant disclosed by the invention has a structure shown as a formula (I):
Figure BDA0001832809900000021
wherein a L groups, equal to or different from each other, are each independently selected from optionally substituted m-valent C1~50Hydrocarbyl and C3~50A heterohydrocarbyl group, m is an integer of 1 to 20 (preferably an integer of 1 to 10), a is an integer of 1 to 20 (preferably an integer of 1 to 10, more preferably 1, 2 or 3); n is0Is composed of
Figure BDA0001832809900000022
Number of charges of group, n0Is an integer of 1 to 20 (preferably an integer of 1 to 10); n XZ-The radicals, equal to or different from each other, are each independently selected from F-、Cl-、Br-、I-And OH-N isAn integer of 1 to 20 (preferably an integer of 1 to 10), and Z-is XZ-The number of charges of the group, z is selected from 1, 2 or 3; n XZ-The absolute value of the total number of charges of the radical being equal to n0
In formula (I), b A groups, which are identical or different from each other, are each independently selected from hydrogen, optionally substituted C1~20A linear or branched alkyl group and a group of formula (II), at least one A group being selected from the group of formula (II); b is an integer of 1 to 20 (preferably an integer of 2 to 10, more preferably 2, 3, 4, 5 or 6);
Figure BDA0001832809900000023
in the group of formula (II), the L 'group is selected from optionally substituted n' -valent C1~50Hydrocarbyl and C3~50A heterohydrocarbyl group; n 'repeating units are the same or different from each other, and n' is an integer of 1 to 20 (preferably an integer of 1 to 10); r of n' repeating units0Each independently selected from hydrogen, optionally substituted C1~20Straight or linear alkyl and optionally substituted C3~20Straight or branched heteroalkyl (preferably selected from C)1~20Straight or linear alkyl); each of the m ' repeating units a ', b ', c ', d ', which are the same or different from each other, is independently selected from an integer of 0 to 5 (preferably 0, 1 or 2), and at least one a ' is an integer of 1 to 5 and at least one d ' is an integer of 1 to 5; each R of m' repeating units1Each independently selected from hydrogen, optionally substituted C1~20Straight or linear alkyl, optionally substituted C3~20A linear or linear heteroalkyl group and a group of formula (III); each R of m' repeating units2Each independently selected from optionally substituted C1~20Straight or branched alkylene and optionally substituted C3~20M' is an integer of 1 to 20 (preferably an integer of 1 to 10), represents a bonding end of the group of formula (II) to the group L of formula (I), △ represents a bonding end of the group of formula (II) to the group R of formula (I);
Figure BDA0001832809900000031
in the formula (III), the groups and symbols are as defined in the formula (II), and R's in the m' repeating units1' each is independently selected from hydrogen, optionally substituted C1~20Straight or linear alkyl, optionally substituted C3~20A linear or linear heteroalkyl group and a group of formula (III) (preferably each independently selected from hydrogen, optionally substituted C1~20Straight or linear alkyl and optionally substituted C3~20Linear or linear heteroalkyl);
c R groups are each independently selected from optionally substituted mbC of valence1~50Hydrocarbyl or C3~50Heterocarbyl (preferably optionally substituted m)bC of valence1~20Straight or branched alkyl and C3~20Linear or branched heteroalkyl), mbIs an integer of 1 to 20 (preferably an integer of 1 to 10); c is an integer of 1 to 20 (preferably an integer of 1 to 10, more preferably 1, 2, 3, 4 or 5);
the number of (hydrocarbyl) bonded ends present in the a L groups is the same as the number of (carbonyl) bonded ends present in the b a groups, the a L groups being bonded to each other via their (hydrocarbyl) bonded ends to the (carbonyl) bonded ends of the b a groups;
the number of tertiary amine nitrogen atoms present in the b a groups is greater than the number of (hydrocarbyl) bound ends present in the c R groups, the number of (tertiary amine) bound ends present in the b a groups, as represented by △, is equal to the number of (hydrocarbyl) bound ends present in the c R groups, and the b a groups are bonded to each other through the (tertiary amine) bound ends present therein, as represented by △, and the (hydrocarbyl) bound ends of the c R groups;
said optionally substituted means optionally substituted with one or more (such as 1 to 5, 1 to 4, 1 to 3, 1 to 2 or 1) groups selected from hydroxy, amino, mercapto, halogen and C1-5Linear or branched alkoxy;
the structure shown in formula (I) conforms to the bonding rule.
According to the invention, preferably, the quaternary ammonium salt surfactant has a structure shown in formula (I-I):
Figure BDA0001832809900000041
wherein a L groups, equal to or different from each other, are each independently selected from optionally substituted m-valent C1~50Hydrocarbyl and C3~50A heterohydrocarbyl group, m is an integer of 1 to 20 (preferably an integer of 1 to 10), a is an integer of 1 to 20 (preferably an integer of 1 to 10, more preferably 1, 2 or 3); n is0Is composed of
Figure BDA0001832809900000042
Number of charges of group, n0Is an integer of 1 to 20 (preferably an integer of 1 to 10); n XZ-The radicals, equal to or different from each other, are each independently selected from F-、Cl-、Br-、I-And OH-N is an integer of 1 to 20 (preferably an integer of 1 to 10), and Z-is XZ-The number of charges of the group, z is selected from 1, 2 or 3; n XZ-The absolute value of the total number of charges of the radical being equal to n0
In the formula (I-I), b A groups are the same or different and are independently selected from hydrogen and optionally substituted C1~20A linear or branched alkyl group and a group of formula (II-I), at least one A group being selected from the group of formula (II-I); b is an integer of 1 to 20 (preferably an integer of 2 to 10, more preferably 2, 3, 4, 5 or 6);
Figure BDA0001832809900000043
in the group of formula (II-I), the L 'group is selected from optionally substituted n' valent C1~50Hydrocarbyl and C3~50A heterohydrocarbyl group; n 'repeating units are the same or different from each other, and n' is an integer of 1 to 20 (preferably an integer of 1 to 10); r of n' repeating units0Each independently selected from hydrogen, optionally substituted C1~20Straight or linear alkyl and optionally substituted C3~20Straight or branched heteroalkyl (preferably selected from C)1~20Straight or linear alkyl); each of the m ' repeating units a ', b ', c ', d ', which are the same or different from each other, is independently selected from an integer of 0 to 5 (preferably 0, 1 or 2), and at least one a ' is an integer of 1 to 5 and at least one d ' is an integer of 1 to 5; each R of m' repeating units1Each independently selected from hydrogen, optionally substituted C1~20Straight or linear alkyl, optionally substituted C3~20A linear or linear heteroalkyl group and a group of formula (III-I); each R of m' repeating units2Each independently selected from optionally substituted C1~20Straight or branched alkylene and optionally substituted C3~20Linear or linear heteroalkylene; each R of m' repeating units3Each independently selected from optionally substituted C1~20Straight or linear alkyl and optionally substituted C3~20A linear or linear heteroalkyl group; m' is an integer of 1 to 20 (preferably an integer of 1 to 10); represents the binding end of the group of formula (II-I) to which the group L of formula (I-I) is bonded;
Figure BDA0001832809900000051
in the formula (III-I), each group and each symbol are as defined in the formula (II-I), and each R in m' repeating units1' each is independently selected from hydrogen, optionally substituted C1~20Straight or linear alkyl, optionally substituted C3~20A linear or linear heteroalkyl group and a group of formula (III-I) (preferably each independently selected from hydrogen, optionally substituted C1~20Straight or linear alkyl and optionally substituted C3~20Linear or linear heteroalkyl);
the number of (hydrocarbyl) bonded ends present in the a L groups is the same as the number of (carbonyl) bonded ends present in the b a groups, the a L groups being bonded to each other via their (hydrocarbyl) bonded ends to the (carbonyl) bonded ends of the b a groups;
said optionally substituted means optionally substituted with one or more (such as 1 to 5, 1 to 4, 1 to 3, 1 to 2 or 1) groups selected from hydroxy, amino, mercapto, halogen and C1-5Linear or branched alkoxy;
the structure shown in the formula (I-I) conforms to the bonding rule.
According to the invention, the quaternary ammonium salt surfactant is selected from quaternary ammonium salt surfactants with the following specific structures or a mixture thereof in any proportion:
Figure BDA0001832809900000061
the invention provides a preparation method of a quaternary ammonium salt surfactant, which comprises the steps of reacting a compound shown in a formula (X), a compound shown in a formula (Y) and a compound shown in a formula (Z);
Figure BDA0001832809900000062
in formula (X), the L 'group is selected from optionally substituted n' valent C1~50Hydrocarbyl and C3~50A heterohydrocarbyl group; n 'repeating units are the same or different from each other, and n' is an integer of 1 to 20 (preferably an integer of 1 to 10); r in n' repeating units0Each independently selected from hydrogen, optionally substituted C1~20Straight or linear alkyl and optionally substituted C3~20Straight or branched heteroalkyl (preferably selected from C)1~20Straight or linear alkyl); each a 'of the m' repeating units is the same or different from each other, and is independently selected from an integer of 1 to 5 (preferably 1, 2 or 3); each R of m' repeating units1Each independently selected from hydrogen, optionally substituted C1~20Straight or linear alkyl, optionally substituted C3~20A linear or linear heteroalkyl group and a group of formula (X-I); each R of m' repeating units2Each independently selected from optionally substituted C1~20Straight or branched alkylene and optionally substituted C3~20Linear or linear heteroalkylene; m' is an integer of 1 to 20 (preferably an integer of 1 to 10);
Figure BDA0001832809900000071
in the formula (X-I), R0、R2A ' and m ' are as defined in formula (X), each R in m ' repeating units1' each is independently selected from hydrogen, optionally substituted C1~20Straight or linear alkyl, optionally substituted C3~20A linear or linear heteroalkyl group and a group of formula (X-I) (preferably each independently selected from hydrogen, optionally substituted C1~20Straight or linear alkyl and optionally substituted C3~20Linear or linear heteroalkyl) in which at least one R is1' is hydrogen;
in formula (Y), the R' group is optionally substituted maC of valence1~50Hydrocarbyl or C3~50Heterocarbyl (preferably optionally substituted m)aC of valence1~20Straight or branched alkyl and C3~20Linear or branched heteroalkyl); m isaThe Y groups in the repeating units are the same or different from each other and are each independently selected from F, Cl, Br, I, OH and optionally substituted C1~5Straight or branched chain alkyl (preferably methyl); m isaIs an integer of 1 to 20 (preferably an integer of 1 to 10);
in formula (Z), the R group is optionally substituted mbC of valence1~50Hydrocarbyl or C3~50Heterocarbyl (preferably optionally substituted m)bC of valence1~20Straight or branched alkyl and C3~20Linear or branched heteroalkyl); m isbThe X groups in the repeating units are the same or different from each other and are each independently selected from F, Cl, Br, I and OH; m isbIs an integer of 1 to 20 (preferably an integer of 1 to 10).
According to the preparation method of the present invention, the molar ratio between the compound represented by the formula (X) (in terms of amine group) and the compound represented by the formula (Y) (in terms of carbonyl group) and the compound represented by the formula (Z) (in terms of X group) is preferably 1: 0.1-10: 0.1 to 10 (more preferably 1: 0.25 to 1: 0.5 to 5).
According to the present invention, the production method may comprise a step of reacting the compound represented by the formula (X) with the compound represented by the formula (Y) or the compound represented by the formula (Z), a step A of reacting the compound represented by the formula (X) with the compound represented by the formula (Y) first and a step B of reacting the product of the step A with the compound represented by the formula (Z), or a step B of reacting the compound represented by the formula (X) with the compound represented by the formula (Z) first and a step A of reacting the product of the step B with the compound represented by the formula (Y).
According to the production method of the present invention, a solvent may or may not be added, and preferably a solvent is added, in the reaction of the compound represented by the formula (X), the compound represented by the formula (Y) and the compound represented by the formula (Z). The solvent is preferably selected from sulfone, sulfoxide, furan, C1~6Alcohol of (1), C1~6The ketone (b) may be, for example, one or more selected from dimethyl sulfoxide, tetrahydrofuran, methanol, ethanol, isopropanol, n-butanol, acetone, methyl ethyl ketone and methyl ethyl ketone. The solvent may be removed by a method known in the art after the completion of the reaction, and is not particularly limited, and examples thereof include distillation and evaporation.
According to the preparation method of the present invention, preferably, an inert gas is introduced into the reaction of the compound represented by the formula (X), the compound represented by the formula (Y), and the compound represented by the formula (Z), and the inert gas is preferably one or more of nitrogen, argon, and helium.
According to the preparation method of the invention, the temperature for the reaction of the compound represented by the formula (X), the compound represented by the formula (Y) and the compound represented by the formula (Z) is preferably 0-200 ℃, preferably 20-150 ℃, and more preferably 30-110 ℃; the reaction time is generally 0.5 to 7 days, preferably 0.5 to 72 hours.
According to the production method of the present invention, preferably, the production method comprises a step a of reacting a compound represented by the formula (X) with a compound represented by the formula (Y), and a step B of reacting the product of the step a with a compound represented by the formula (Z).
According to the preparation process of the present invention, preferably, the compound represented by the formula (X) is preferably selected from C1~50And/or C1~50Alkyl alcohol amine (more preferably C)2~20And/or C2~20The alkylol amine) of (a) may be, for example, N-dimethylethylenediamine, N-dimethylpropylenediamine, N,2,2-One or more of tetramethyl-1, 3-propanediamine, 3- (dibutylamino) propylamine, N- (3-aminopropyl) diethanolamine, N-dimethyl-1, 3-cyclohexanediamine, N-diethylethylenediamine, N-dipropylethylenediamine, 2-amino-5-diethylaminopentane and N, N-diisopropylethylenediamine.
According to the preparation method of the present invention, preferably, the compound represented by the formula (Y) is preferably selected from C1~50Polycarboxylic acid esters, polycarboxylic acids and polycarboxylic acid halides (more preferably C)2~30The polycarboxylic acid ester of (a) may be selected from dicarboxylic acid esters, tricarboxylic acid esters, tetracarboxylic acid esters, pentacarboxylic acid esters, and hexacarboxylic acid esters.
According to the preparation method of the present invention, the dicarboxylic acid ester is preferably selected from one or more of the following structures:
Figure BDA0001832809900000091
wherein, the value of x is preferably selected from integers between 0 and 9, such as 0, 1, 2 or 3; the value of y is preferably selected from integers between 1 and 10, such as 1, 2, 3, 4, 5 or 6; raEach independently selected from C1-12And cycloalkyl groups such as methyl, ethyl, propyl, isopropyl, and the like.
According to the preparation method of the present invention, the tricarboxylic acid ester is preferably selected from one or more of the following structures:
Figure BDA0001832809900000092
wherein R isaThe definition of (A) is as described above.
According to the preparation method of the present invention, the tetracarboxylic acid ester is preferably selected from one or more of the following structures:
Figure BDA0001832809900000101
wherein R isaThe value of s is preferably selected from integers between 0 and 9, such as 0,1.2 or 3.
According to the production method of the present invention, the five-membered carboxylic acid ester and six-membered carboxylic acid ester are preferably selected from compounds of the following structures:
Figure BDA0001832809900000102
wherein R isaThe definition of (A) is as described above.
According to the preparation process of the present invention, preferably, the compound represented by the formula (Z) is preferably selected from C1~50Alkyl halide (preferably selected from C)5~30The alkyl halide of (2) such as 1-bromododecane, 1-bromotetradecane, 1-bromohexadecane, 1-chlorododecane, 1-chlorotetradecane, 1-chlorohexadecane, 1-iodododecane, 1-iodotetradecane, 1-iodohexadecane and the like.
The invention also provides the use of the quaternary ammonium surfactant described above. The quaternary ammonium salt surfactant can be used as a high-efficiency low-consumption wetting agent for the field of tertiary oil recovery. In the tertiary oil recovery process, the quaternary ammonium salt surfactant can effectively convert the surface of a carbonate reservoir wrapped by crude oil into water wettability or neutral wettability to realize wettability reversal, thereby being beneficial to the improvement of oil washing efficiency.
Technical effects
The preparation method is simple, the reaction condition is mild, and the yield is high.
The preferable preparation method of the invention does not use acyl halide, can avoid the toxic action brought by acyl halide, simultaneously avoids the limitation of anhydrous and anaerobic conditions, and simplifies the reaction conditions.
The preferable preparation method of the invention uses the polycarboxylic acid ester which is widely available, green and cheap, and is suitable for industrial production.
The quaternary ammonium salt surfactant has excellent surface activity and aggregation capacity, and can be used as a high-efficiency and low-consumption wetting agent in the field of tertiary oil recovery. The quaternary ammonium salt surfactant can achieve an excellent wetting effect at a lower concentration.
Drawings
FIG. 1 is an ESI mass spectrum of a quaternary ammonium surfactant intermediate prepared in example 1 of the present invention.
FIG. 2 shows NMR of intermediate of quaternary ammonium salt surfactant prepared in example 1 of the present invention1H NMR spectrum.
FIG. 3 is an ESI mass spectrum of the quaternary ammonium salt surfactant prepared in example 1 of the present invention.
FIG. 4 shows NMR spectra of quaternary ammonium salt surfactant prepared in example 1 of the present invention1H NMR spectrum.
FIG. 5 is an ESI mass spectrum of a quaternary ammonium surfactant intermediate prepared in example 2 of the present invention.
FIG. 6 shows NMR of intermediate of quaternary ammonium salt surfactant prepared in example 2 of the present invention1H NMR spectrum.
FIG. 7 is a high resolution ESI mass spectrum of the quaternary ammonium surfactant prepared in example 2 of the present invention.
FIG. 8 shows NMR spectra of quaternary ammonium salt surfactant prepared in example 2 of the present invention1H NMR spectrum.
Detailed Description
The following detailed description of the embodiments of the present invention is provided, but it should be noted that the scope of the present invention is not limited by the embodiments, but is defined by the appended claims.
All publications, patent applications, patents, and other references mentioned in this specification are herein incorporated by reference in their entirety. Unless defined otherwise, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art. In case of conflict, the present specification, including definitions, will control.
When the specification concludes with claims with the heading "known to those skilled in the art", "prior art", or the like, to derive materials, substances, methods, steps, devices, or components, etc., it is intended that the subject matter derived from the heading encompass those conventionally used in the art at the time of filing this application, but also include those that are not currently used, but would become known in the art to be suitable for a similar purpose.
In the context of the present specification, anything or things which are not mentioned, except where explicitly stated, are directly applicable to those known in the art without any changes. Moreover, any embodiment described herein may be freely combined with one or more other embodiments described herein, and the technical solutions or concepts resulting therefrom are considered part of the original disclosure or original disclosure of the invention, and should not be considered as new matters not disclosed or contemplated herein, unless a person skilled in the art would consider such a combination to be clearly unreasonable.
In the context of the present invention, the expression "halo" refers to fluoro, chloro, bromo or iodo.
In the context of the present invention, the term "hydrocarbyl" has the meaning conventionally known in the art and includes straight or branched chain alkyl, straight or branched chain alkenyl, straight or branched chain alkynyl, cycloalkyl, cycloalkenyl, cycloalkynyl, aryl, or combinations thereof, wherein straight or branched chain alkyl, straight or branched chain alkenyl, cycloalkyl, cycloalkenyl, aryl, or combinations thereof are preferred. Specific examples of the hydrocarbon group include C1-50A hydrocarbon radical comprising C1-50Straight or branched alkyl, C2-50Straight-chain or branched alkenyl, C2-50Straight-chain or branched alkynyl, C3-50Cycloalkyl radical, C3-50Cycloalkenyl radical, C3-50Cycloalkynyl group, C6-50Aryl or a combination thereof, wherein C is preferred1-50Straight or branched alkyl, C2-50Straight-chain or branched alkenyl, C3-50Cycloalkyl radical, C3-50Cycloalkenyl radical, C6-50Aryl or a combination thereof. As said combination group, for example, there may be mentioned one or more C1-50Straight or branched chain alkyl (preferably one or more C)1-20Straight or branched alkyl) with one or more C6-50Radicals obtained by direct substitution or bonding of aryl radicals, preferably one or more phenyl or naphthyl radicals, one or more C1-50Straight or branched alkenyl (preferably one or more C)1-20Straight or branched alkenyl) with one or more C6-50A group obtained by directly substituting or bonding an aryl group (preferably one or more phenyl groups or naphthyl groups),One or more C1-50Straight or branched chain alkyl (preferably one or more C)1-20Straight or branched alkyl) with one or more C3-50A group obtained by direct substitution or bonding of cycloalkyl (preferably one or more cyclobutyl, cyclopentyl or cyclohexyl), one or more C1-50Straight or branched alkenyl (preferably one or more C)1-20Straight or branched alkenyl) with one or more C3-50A group obtained by direct substitution or bonding of cycloalkyl (preferably one or more cyclobutyl, cyclopentyl or cyclohexyl), one or more C1-50Straight or branched chain alkyl (preferably one or more C)1-20Straight or branched alkyl) with one or more C3-50A group obtained by direct substitution or bonding of cycloalkenyl (preferably one or more cyclobutenyl, cyclobutadienyl, cyclopentenyl, cyclopentadienyl, cyclohexenyl or cyclohexadienyl), one or more C1-50Straight or branched alkenyl (preferably one or more C)1-20Straight or branched alkenyl) with one or more C3-50Cycloalkenyl (preferably one or more cyclobutenyl, cyclobutadienyl, cyclopentenyl, cyclopentadienyl, cyclohexenyl or cyclohexadienyl) groups obtained by direct substitution or bonding. The substitution refers to one group as a substituent to replace a hydrogen atom in another group. The total number of carbon atoms in the combined group is an integer of 3 to 50 (preferably 3 to 20). As the above-mentioned combination group, there may be mentioned, for example, one or more C1-20Straight or branched alkylphenyl, phenyl C1-20Straight or branched chain alkyl or mono-or poly-C1-20Straight-chain or branched alkylphenyl C1-20Straight or branched chain alkyl, etc., of which C is more preferable1-10Straight or branched alkylphenyl radicals, e.g. tert-butylphenyl, phenyl C1-10Straight or branched alkyl (e.g. benzyl) or C1-10Straight-chain or branched alkylphenyl C1-10Straight or branched chain alkyl (such as t-butylbenzyl).
In the context of the present invention, by "heterohydrocarbyl" is meant one or more (ratios) within the hydrocarbyl molecular structure (excluding the ends of the backbone or any side chains in the hydrocarbyl molecular structure)Such as 1 to 4, 1 to 3, 1 to 2 or 1) -CH2The radicals-being selected from-O-, -S-, -N ═ N-and-NR '- (R' is H or C1-4Straight or branched chain alkyl), or one or more (such as 1 to 4, 1 to 3, 1 to 2 or 1) -CH inside the hydrocarbon-based molecular structure (excluding the end of the main chain or any side chain in the hydrocarbon-based molecular structure)<Radical substituted by radical-N<A group obtained by direct substitution. As said substituent, it is preferably-O-or-S-. It is apparent that, from the viewpoint of structural stability, a plurality of-O-, -NR' -, -N-or-N-groups are present<When used, these substituent groups are not directly bonded to each other; where multiple-S-groups are present, these substituent groups may be bonded directly to one another. The number of carbon atoms of the hydrocarbon group is represented by the group-CH2-or a group-CH<Substituted with a corresponding decrease, but for the sake of simplicity, the number of carbon atoms of the hydrocarbon group before the substitution is still used to refer to the number of carbon atoms of the heterohydrocarbon group. By "heteroalkyl" is meant a straight or branched heteroalkyl, straight or branched heteroalkenyl, straight or branched heteroalkynyl, straight or branched heterocyclyl, straight or branched heterocyclenyl, straight or branched heterocycloalkynyl, straight or branched heteroaryl, or combinations thereof, with straight or branched heteroalkyl, straight or branched heteroalkenyl, straight or branched heterocyclyl, straight or branched heterocycloalkenyl, straight or branched heteroaryl, or combinations thereof being preferred. The total number of carbon atoms in the combined group is an integer of 3 to 50 (preferably 3 to 20).
As the heterohydrocarbyl group, specifically exemplified is C4Straight chain alkyl radicals such as
Figure BDA0001832809900000141
(the group indicated by the arrow in the formula is not located within the molecular structure but at the end of the main chain) direct substitution with a substituent-O-will give-CH2-O-CH2-CH3or-CH2-CH2-O-CH3Is called C4A linear heteroalkyl group; c4Straight chain alkyl radicals such as
Figure BDA0001832809900000142
(the group indicated by the arrow in the formula is not located within the molecular structure but at the end of the main chain) direct substitution with a substituent-NH-will give-CH2-NH-CH2-CH3or-CH2-CH2-NH-CH3Also known as C4A linear heteroalkyl group. Or, C4Branched alkyl radicals such as
Figure BDA0001832809900000143
(the groups indicated by the arrows are not located within the molecular structure but at the ends of the main and side chains) by a substituent-N<Direct substitution will result in
Figure BDA0001832809900000144
Is called C4A branched heteroalkyl group. According to the invention, as the heterohydrocarbyl group, there may be mentioned, for example, C3-50Straight or branched heterohydrocarbyl, of which C is preferred3-20Straight or branched heterohydrocarbyl radicals or C3-6Straight or branched heterohydrocarbyl.
In the context of the present invention, said optionally substituted hydrocarbyl and heterohydrocarbyl are optionally substituted by one or more (such as 1 to 5, 1 to 4, 1 to 3, 1 to 2 or 1) hydrogens selected from the group consisting of hydroxyl, amino, mercapto, halogen and C1-5Straight or branched alkoxy-substituted hydrocarbyl and heterohydrocarbyl.
In the context of the present specification, the expression "number + valence + group" or the like refers to a group obtained by removing the number of hydrogen atoms represented by the number from the basic structure (such as a chain, a ring, a combination thereof, or the like) to which the group corresponds, and preferably refers to a group obtained by removing the number of hydrogen atoms represented by the number from a carbon atom (preferably a saturated carbon atom and/or a non-identical carbon atom) contained in the structure. For example, "3-valent straight or branched alkyl" refers to a group obtained by removing 3 hydrogen atoms from a straight or branched alkane (i.e., the base chain to which the straight or branched alkyl corresponds), and "2-valent straight or branched heteroalkyl" refers to a group obtained by removing 2 hydrogen atoms from a straight or branched heteroalkane (preferably from a carbon atom contained in the heteroalkane, or further, from a non-identical carbon atom).
In the present specification, the term "single bond" is sometimes used in the definition of a group. By "single bond", it is meant that the group is absent. For example, assume the formula-CH2-A-CH3Wherein the group a is defined as being selected from the group consisting of a single bond and a methyl group. In this respect, if A is a single bond, this means that the group A is absent, in which case the formula is correspondingly simplified to-CH2-CH3
Unless otherwise expressly indicated, all percentages, parts, ratios, etc. mentioned in this specification are by weight unless otherwise not in accordance with the conventional knowledge of those skilled in the art.
According to the invention, preferably, the L group is selected from the following groups: c having a valence of 2 to 6 (preferably 1, 2 or 3)1-50Straight chain or branched alkyl, C of 2 to 6 valences (preferably 1, 2 or 3 valences)2-50Straight chain or branched alkenyl, C substituted with one or more (preferably one, two, three or four) hydroxy groups having 2 to 6 valences (preferably 1, 2 or 3 valences)1-50Straight chain or branched alkyl, C substituted by one or more (preferably one, two, three or four) hydroxy groups having 2 to 6 valences (preferably 1, 2 or 3 valences)2-50Straight or branched alkenyl, C having a valence of 1 to 6 (preferably 1, 2 or 3)3-50Cycloalkyl or cycloheteroalkyl, 1-6 (preferably 1, 2 or 3) valent C3-50Cycloalkenyl or cycloheteroalkenyl, 1-6 (preferably 1, 2 or 3) valent C6-50Aryl or heteroaryl.
According to the invention, preferably the L group is selected from the group consisting of a cyclobutyl group having a valence of 1 to 4 (preferably 1, 2 or 3), a cyclopentyl group having a valence of 1 to 5 (preferably 1, 2 or 3), a cyclohexyl group having a valence of 1 to 6 (preferably 1, 2 or 3), a cyclobutenyl group having a valence of 1 to 4 (preferably 1, 2 or 3), a cyclopentenyl group having a valence of 1 to 5 (preferably 1, 2 or 3), a cyclopentadienyl group having a valence of 1 to 5 (preferably 1, 2 or 3), a cyclohexenyl group having a valence of 1 to 6 (preferably 1, 2 or 3), a cyclohexadienyl group having a valence of 1 to 6 (preferably 1, 2 or 3), a furyl group having a valence of 1 to 4 (preferably 1, 2 or 3), a thienyl group having a valence of 1 to 4 (preferably 1, 2 or 3), a pyrrolyl group having a valence of 1 to 4 (preferably 1 to 6), and a pyrrolyl group having a valence of 1 to 4 (preferably 1 to 6), 2-or 3-valent) indolyl group, 1-to 3-valent (preferably 1-or 2-valent) pyrazolyl group, 1-to 3-valent (preferably 1-or 2-valent) imidazolyl group, 1-to 2-valent thiazolyl group, 1-to 3-valent (preferably 1-or 2-valent) oxazolyl group, 1-to 5-valent (preferably 1-valent, 2-valent or 3-valent) pyridyl group, 1-to 7-valent (preferably 1-valent, 2-valent or 3-valent) quinolyl group, 1-to 6-valent (preferably 1-valent, 2-valent, 3-valent, 4-valent or 5-valent) phenyl group, 1-to 8-valent (preferably 1-valent, 2-valent, 3-valent, 4-valent or 5-valent) naphthyl group, group represented by formula (L-I), group represented by formula (L-II), group represented by formula (L-III), group represented by formula (L-IV),
Figure BDA0001832809900000161
in formula (L-I), j represents the number of phenyl-bound ends, each j is independently selected from an integer between 0 and 5 (preferably 1, 2 or 3), and at least one j is an integer between 1 and 5;
in the formula (L-II), RjEach independently selected from C1-10Linear or branched alkylene of (C)1-10Linear or branched heteroalkylene of (C)1-10And C is a linear or branched alkyleneoxy group1-10Is a linear or branched heteroalkyleneoxy group (i.e., C having a valence of 2)1-10Straight or branched alkyl of (2), C1-10Linear or branched heteroalkyl, 2-valent C1-10And C having a valence of 21-10Linear or branched heteroalkyloxy) represents RjAt the bound end of the radical, j being RjThe number of the bonding ends of the groups, each j is independently selected from an integer of 0-5 (preferably 1, 2 or 3), and at least one j is an integer of 1-5;
in the formula (L-III), each RjEach independently selected from C1-10Linear or branched alkylene and C1-10Represents RjBound end of a radical, j being R to which it belongsjThe number of bound ends of the groups, each j is independently selected from 0, 1 or 2 (preferably 1 or 2), at least one j is 1 or 2; each R isj' the groups are each independently selected from C1-10Is straight-chain or branched alkyl, j' is R to which it belongsj'the number of groups, each j' is independently selected from 0, 1 or 2 (preferably 1 or 2); for R bound to the same N atomjGroup and Rj'for the group, the sum of j and j' is 2; j' is an integer between 0 and 5 (preferably 1, 2, 3 or 4); in formula (L-IV), the Ar ring group is selected from the group consisting of cyclobutyl, cyclopentyl, cyclohexyl, cyclobutenyl, cyclopentenyl, cyclopentadienyl, cyclohexenyl, cyclohexadienyl, phenyl and naphthyl (preferably selected from the group consisting of cyclobutyl, cyclopentyl, cyclohexyl, cyclopentadienyl, phenyl and naphthyl); each R isjEach independently selected from C1-10Linear or branched alkylene and C1-10Represents RjBound end of a radical, j being R to which it belongsjThe number of bound ends of the groups, each j is independently selected from 0, 1 or 2 (preferably 1 or 2), at least one j is 1 or 2; each R isj' the groups are each independently selected from C1-10Is straight-chain or branched alkyl, j' is R to which it belongsj'the number of groups, each j' is independently selected from 0, 1 or 2 (preferably 1 or 2); for R bound to the same N atomjGroup and Rj'for the group, the sum of j and j' is 2; j' is an integer between 0 and 5 (preferably 1, 2, 3 or 4).
According to the present invention, in the method for preparing the quaternary ammonium salt surfactant, the reaction product may be a single quaternary ammonium salt surfactant or a mixture containing a plurality of quaternary ammonium salt surfactants. These reaction products are all intended for the present invention, and the difference in the form of their existence does not affect the achievement of the effects of the present invention. Thus, the reaction products are collectively referred to herein, without distinction, as the quaternary ammonium surfactants of the present invention. In view of this, there is no absolute necessity for further purification of these reaction products, or for further isolation of quaternary ammonium surfactants of a specific structure from these reaction products, according to the present invention. Of course, such purification or isolation is sometimes preferable for further improvement of the intended effect of the present invention, but is not essential to the present invention. As the purification or separation method, for example, the reaction product may be purified or separated by a column chromatography method, a preparative chromatography method or the like.
The main raw materials used in the embodiment are as follows:
name of article Origin of origin Purity of
DL-malic acid dimethyl ester Alfa Aesar >97%
Citric acid trimethyl ester Alfa Aesar >97%
Azobenzene-3, 3' -dicarboxylic acids TCI >95%
2, 5-Furanedicarboxylic acid TCI >98%
N, N-dimethylethylenediamine Alfa Aesar >98%
1-bromododecane TCI >98%
Organic solvent Beijing chemical plant AR
EXAMPLE 1 preparation of dimeric quaternary ammonium surfactant
The preparation method of the dimeric quaternary ammonium salt surfactant is as follows:
Figure BDA0001832809900000171
the specific method comprises the following steps:
(1) the synthesis steps of intermediate product diamide: 14.1g (160.0mmol) of N, N-dimethylethylenediamine was added to 3.2g (20.0mmol) of DL-malic acid dimethyl ester and refluxed at 106 ℃ for 3 hours. After the reaction was completed, excess N, N-dimethylethylenediamine was removed by a rotary evaporator to obtain an intermediate with a yield of 99%.
ESI-MS characterization of the intermediates: 275.2(M + H), 297.2(M + Na).
1H NMR(CDCl 3400 MHz): δ 2.24 (singlet, 12H, -N (CH)3)2) 2.44 (multiplet, 4H, -NH-CH)2-CH2-N(CH3)2) 2.51, 2.82 (multiplet, 2H, -NH-CO-CH)2-CH (OH) -CO-NH-), 3.25 (multiplet, 4H, -NH-CH2-CH2-N(CH3)2) 4.42 (singlet, 1H, -CH-OH), 5.95 (singlet, 1H, -CH-OH), 7.04, 7.49 (singlet, 2H, -NH-CO-CH)2-CH(OH)-CO-NH-)。
(2) Preparation of dimeric quaternary ammonium salt surfactant:
1.6g (6.0mmol) of the intermediate and 6.0g (24.0mmol) of 1-bromododecane were dissolved in a mixed solvent of methanol and acetone, and reacted at 40 ℃ for 72 hours. The solvent was removed by rotary evaporation and the crude product was recrystallized from methanol/ethyl acetate to give the product as a powder with a yield of 90%.
Pattern results for dimeric quaternary ammonium surfactant:1H NMR(CD3OD, 400 MHz): δ is 0.87 (triplet, 6H, -CH)3) 1.29-1.80 (multiplet, 40H, CH)3-(CH2)10-CH2-N+-), 2.71-2.85 (multiplet, 4H, CH)3-(CH2)10-CH2-N+-), 3.13-3.20 (multiplet, 12H, -N+(CH3)2) 3.45-3.52 (multiplet, 7H, -CO-NH-CH)2-CH2-N+-,-NH-CO-CH2-CH (OH) -CO-NH-), 3.55-3.76 (multiplet, 4H, -CO-NH-CH2-CH2-N+-, 4.46 (triplet, 1H, -NH-CO-CH)2-CH (OH) -CO-NH-. MS-ESI (m/z): theoretical value 772.82; and (3) testing results: 306.6([ M-2 Br)]2+/2)。1The results of H NMR and MS-ESI show that the product is consistent with the target product. Elemental analysis results: theoretical value: c36H76N4O3Br2: c, 55.95; h, 9.91; and N, 7.25. And (3) testing results: c, 55.90; h, 9.88; and N, 7.20.
These spectrum results show that the compound prepared in this example is a dimeric quaternary ammonium salt surfactant product.
EXAMPLE 2 preparation of Triquaternary ammonium salt surfactant
The preparation method of the trimeric quaternary ammonium salt surfactant is as follows:
Figure BDA0001832809900000191
the specific method comprises the following steps:
(1) synthesis of intermediate tripolyamide: 10.6g (120.0mmol) of N, N-dimethylethylenediamine was added to 2.3g (10.0mmol) of trimethyl citrate, and the mixture was refluxed at 106 ℃ for 3 hours. After the reaction was completed, excess N, N-dimethylethylenediamine was removed by a rotary evaporator to obtain an intermediate with a yield of 99%.
ESI-MS characterization of the intermediates: 403.2(M + H), 425.3(M + Na).
1H NMR(CDCl 3400 MHz): δ 2.24 (singlet, 18H, -N (CH)3)2) 2.41 (multiplet, 6H, -NH-CH)2-CH2-N(CH3)2) 2.60-2.73 (multiplet, 4H, -NH-CO-CH)2-CH (OH) -, 3.32 (multiplet, 6H, -NH-CH2-CH2-N(CH3)2) 5.20 (singlet, 1H, -CH-OH), 7.10, 7.47 (singlet, 3H, -NH-CH)2-CH2-N(CH3)2)。
(2) Preparation of trimeric quaternary ammonium salt surfactant: 4.0g (6.4mmol) of the intermediate and 16.0g (63.7mmol) of 1-bromododecane were dissolved in a mixed solvent of methanol and acetone and reacted at 40 ℃ for 72 hours. The solvent was removed by rotary evaporation and the crude product was recrystallized from methanol/ethyl acetate to give the product as a powder in 85% yield.
Map results for the trimeric quaternary surfactant:1H NMR(CD3OD, 400 MHz): δ is 0.88 (triplet, 9H, -CH)3) 1.29-1.39 (multiplet, 54H, CH)3-(CH2)9-CH2-CH2-N+-, 1.80 (singlet, 6H, CH)3-(CH2)9-CH2-CH2-N+-, 2.64-2.91 (multiplet, 6H, CH)3-(CH2)9-CH2-CH2-N+-), 3.16-3.25 (multiplet, 18H, -N+(CH3)2) 3.45-3.55 (multiplet, 11H, -CO-NH-CH)2-CH2-N+-,-NH-CO-CH2-OH), 3.65-3.72 (multiplet, 6H, -CO-NH-CH)2-CH2-N+-). MS-ESI (m/z): theoretical value 1146.64; and (3) testing results: 495.40([ M-2 Br)]2+/2)。1The results of H NMR and MS-ESI show that the product is consistent with the target product. Elemental analysis results: theoretical value: c54H113N6O4Br3: c, 56.39; h, 9.90; and N, 7.31. And (3) testing results: c, 56.26; h, 9.82; and N, 7.29.
The results of these spectra show that the compound prepared in this example is a trimeric quaternary ammonium salt surfactant product.
EXAMPLE 3 preparation of gemini surfactants with linking group containing aromatic rings
The preparation method of the gemini surfactant with the connecting group containing aromatic rings is as follows:
Figure BDA0001832809900000201
the specific method comprises the following steps:
(1) synthesis of intermediate dimethyl ester: 2.7g (10.0mmol) of azobenzene-3, 3' -dicarboxylic acid was added to 50mL of methanol, and a catalytic amount of concentrated sulfuric acid was added thereto and refluxed for 3 hours. After the reaction is finished, the solvent is removed by a rotary evaporator, and the intermediate dimethyl ester can be obtained with the yield of 99%.
(2) Synthesis of intermediate diamine: 3.5g (40.0mmol) of N, N-dimethylethylenediamine was added to 3.0g (10.0mmol) of intermediate dimethyl ester and refluxed at 106 ℃ for 3 hours. After the reaction was completed, excess N, N-dimethylethylenediamine was removed by a rotary evaporator to obtain an intermediate with a yield of 99%.
(3) Preparation of dimeric quaternary ammonium salt surfactant with aromatic ring-containing linking group: 4.1g (10.0mmol) of the intermediate and 10.0g (40.0mmol) of 1-bromododecane were dissolved in a mixed solvent of methanol and acetone and reacted at 40 ℃ for 72 hours. The solvent was removed by rotary evaporation and the crude product was recrystallized from methanol/ethyl acetate to give the product as a powder with a yield of 80%.
EXAMPLE 4 preparation of dimeric surfactants in which the linking group contains heterocycles
The preparation method of the dimeric surfactant with the connecting group containing the heterocycle is as follows:
Figure BDA0001832809900000211
the specific method comprises the following steps:
(1) synthesis of intermediate dimethyl ester: 1.6g (10.0mmol) of 2, 5-furandicarboxylic acid was added to 50mL of methanol, and a catalytic amount of concentrated sulfuric acid was added thereto and refluxed for 3 hours. After the reaction is finished, the solvent is removed by a rotary evaporator, and the intermediate dimethyl ester can be obtained with the yield of 99%.
(2) Synthesis of intermediate diamine: 3.5g (40.0mmol) of N, N-dimethylethylenediamine was added to 1.8g (10.0mmol) of intermediate dimethyl ester and refluxed at 106 ℃ for 3 hours. After the reaction was completed, excess N, N-dimethylethylenediamine was removed by a rotary evaporator to obtain an intermediate with a yield of 99%.
(3) Preparation of dimeric quaternary ammonium salt surfactant with heterocyclic ring-containing linking group: 3.0g (10.0mmol) of the intermediate and 10.0g (40.0mmol) of 1-bromododecane were dissolved in a mixed solvent of methanol and acetone, and reacted at 40 ℃ for 72 hours. The solvent was removed by rotary evaporation and the crude product was recrystallized from methanol/ethyl acetate to give a powder product with 86% yield.
Example 5 measurement of surface tension and measurement of critical aggregation concentration
The surface tension of aqueous surfactant solutions of different concentrations was measured using a K100 surface tension meter from KRUSS, germany, using a flying ring. Each surface tension value (γ) is repeated five or more times and each surface tension curve is repeated three times. The test temperature was controlled at 25.0. + -. 0.1 ℃. Respectively measuring the surface tension values of the dimeric and trimeric quaternary ammonium salt surfactants with different concentrations, defining the turning point of the obtained surface tension-concentration logarithm (gamma-logC) curve as the critical aggregation concentration of the surfactant, and defining the surface tension value of the curve in a platform region as the gamma-concentration of the surfactantCAC
Example 6 determination of critical aggregation concentration of surfactant by conductivity method
Conductivity values of the surfactant at different concentrations were measured using a DDS-11A type laboratory conductivity meter of shanghai wisdom photo instruments ltd. In the experimental process, a high-concentration surfactant solution is continuously added into 10.00mL of water, and the reading of a conductivity meter is carried out after the system is completely balanced. In the experimental process, the surfactant solution is placed in a constant-temperature water bath, so that the temperature of the solution in the experimental process is constant at (25.0 +/-0.1). Conductivity values of the quaternary ammonium salt surfactants of examples 1-4 at different concentrations were measured, respectively, and the turning point of the conductivity-concentration (κ -C) curve obtained was the critical aggregation concentration of the surfactant.
TABLE 1 Critical aggregation concentration of Quaternary ammonium surfactants in aqueous solution (25 ℃ C.)
Figure BDA0001832809900000221
Table 1 shows the Critical Aggregation Concentration (CAC) and the average value (CAC) of the quaternary ammonium salt surfactant obtained by the surface tension and electric conductivity methoda) And gammaCAC. Meanwhile, the corresponding data of the conventional single-chain Quaternary ammonium salt surfactant Dodecyl Trimethyl Ammonium Bromide (DTAB) reported in the literature (Esumi K., Taguma K., KoideY. aqueous Properties of Multi-chain Quaternary ammonium surfactants Langmuir1996,12: 4039-4041) are also given in the table. Compared with the traditional quaternary ammonium salt surfactant DTAB, the quaternary ammonium salt surfactant disclosed by the invention has extremely low critical aggregation concentration. At the same time, the surface tension (gamma) of the quaternary ammonium surfactants of the invention is comparable to DTABCAC) The values are lower, indicating that they have a stronger surface activity.
On the other hand, the surface tension (. gamma.) of the trimeric surfactant obtained in example 2 of the present inventionCAC) Is 33.0mN/m, and under the condition that the alkyl chain length is the same, the value is obviously lower than that of two trimeric cationic quaternary ammonium salt surfactants (45.0mN/m and 42.0mN/m) in the document (Langmuir,2010,26,7922-7927) and a star-shaped trimeric cationic quaternary ammonium salt surfactant (41.8mN/m) in the document (Colloids surf. A,2014,457,374-381), and the result shows that the quaternary ammonium salt surfactant disclosed by the invention has more excellent surface activity. When the micro-pore structure is applied to crude oil exploitation, the capillary resistance of the carbonate micro-pores to oil drops is reduced, and therefore the oil washing efficiency is improved.
Example 7 wettability test
A mica sheet is used for simulating reservoir rock, Tahe thick oil, Chunguang thick oil, Shenglichen 25 thick oil, Yong8 thick oil and Shengliqian offshore thick oil are respectively used as oil phases, 0.5mM or 5.0mM quaternary ammonium salt surfactant solution in the embodiment 1-4 is respectively used as a water phase, and a three-phase method is used for measuring a contact angle on a DSA100 contact angle measuring instrument. The contact angle results are shown in table 2.
TABLE 2 results of wettability tests
Figure BDA0001832809900000231
(continuation table 2)
Figure BDA0001832809900000232
From the results of Table 2, it can be seen that at fixed concentrations of 0.5mM and 5.0mM, the contact angle of the quaternary ammonium salt surfactant of the present invention is smaller than that of the single-chain quaternary ammonium salt surfactant DTAB, indicating that it has stronger wettability. At the same time, the contact angle of DTAB at 0.5mM was very large (over 110 ℃ C.), indicating that the interface was still an oil-wet interface at this time. When the quaternary ammonium salt surfactant is 0.5mM, the contact angle is respectively reduced to about 80 degrees or 50 degrees, the quaternary ammonium salt surfactant is neutral-wetting and weak-water-wetting, and the oil displacement recovery rate of rock sample water in the wetting state is highest. Therefore, the quaternary ammonium salt surfactant obtained by the invention can realize wetting reversion at a lower concentration, thereby being beneficial to the improvement of the recovery ratio of crude oil.
In conclusion, compared with the traditional surfactant, the quaternary ammonium salt surfactant prepared by the invention has stronger surface activity and aggregation capability, thereby showing the characteristics of high efficiency and low consumption. And the quaternary ammonium salt surfactant is also superior to the traditional surfactant in the aspect of wettability to crude oil, can realize wetting reversal at lower concentration, and is favorable for improving the oil washing efficiency.
Although the embodiments of the present invention have been described in detail with reference to the examples, it should be noted that the scope of the present invention is not limited by the embodiments, but is defined by the appended claims. Those skilled in the art can appropriately modify the embodiments without departing from the technical spirit and scope of the present invention, and the modified embodiments are also clearly included in the scope of the present invention.

Claims (19)

1. A quaternary ammonium salt surfactant has a structure shown in a formula (I):
Figure FDA0001832809890000011
wherein a L groups, equal to or different from each other, are each independently selected from optionally substituted m-valent C1~50Hydrocarbyl and C3~50A heterohydrocarbyl group, m is an integer of 1 to 20 (preferably an integer of 1 to 10), a is an integer of 1 to 20 (preferably an integer of 1 to 10, more preferably 1, 2 or 3); n is0Is composed of
Figure FDA0001832809890000012
Number of charges of group, n0Is an integer of 1 to 20 (preferably an integer of 1 to 10); n XZ-The radicals, equal to or different from each other, are each independently selected from F-、Cl-、Br-、I-And OH-N is an integer of 1 to 20 (preferably an integer of 1 to 10), and Z-is XZ-The number of charges of the group, z is selected from 1, 2 or 3; n XZ-The absolute value of the total number of charges of the radical being equal to n0
In formula (I), b A groups, which are identical or different from each other, are each independently selected from hydrogen, optionally substituted C1~20A linear or branched alkyl group and a group of formula (II), at least one A group being selected from the group of formula (II); b is an integer of 1 to 20 (preferably an integer of 2 to 10, more preferably 2, 3, 4, 5 or 6);
Figure FDA0001832809890000013
in the group of formula (II), the L 'group is selected from optionally substituted n' -valent C1~50Hydrocarbyl and C3~50A heterohydrocarbyl group; n 'repeating units are the same or different from each other, and n' is an integer of 1 to 20 (preferably an integer of 1 to 10); r of n' repeating units0Each independently selected from hydrogen, optionally substituted C1~20Straight or linear alkyl and optionally substituted C3~20Straight or branched heteroalkyl (preferably selected from C)1~20Straight or linear alkyl); each of the m ' repeating units a ', b ', c ', d ', which are the same or different from each other, is independently selected from an integer of 0 to 5 (preferably 0, 1 or 2), and at least one a ' is an integer of 1 to 5 and at least one d ' is an integer of 1 to 5; each R of m' repeating units1Each independently selected from hydrogen, optionally substituted C1~20Straight or linear alkyl, optionally substituted C3~20A linear or linear heteroalkyl group and a group of formula (III); each R of m' repeating units2Each independently selected from optionally substituted C1~20Straight or branched alkylene and optionally substituted C3~20M' is an integer of 1 to 20 (preferably an integer of 1 to 10), represents a bonding end of the group of formula (II) to the group L of formula (I), △ represents a bonding end of the group of formula (II) to the group R of formula (I);
Figure FDA0001832809890000021
in the formula (III), the groups and symbols are as defined in the formula (II), and R's in the m' repeating units1' each is independently selected from hydrogen, optionally substituted C1~20Straight or linear alkyl, optionally substituted C3~20A linear or linear heteroalkyl group and a group of formula (III) (preferably each independently selected from hydrogen, optionally substituted C1~20Straight or linear alkyl and optionally substituted C3~20Linear or linear heteroalkyl);
c R groups are each independently selected from optionally substituted mbC of valence1~50Hydrocarbyl or C3~50Heterocarbyl (preferably optionally substituted m)bC of valence1~20Straight or branched alkyl and C3~20Linear or branched heteroalkyl), mbIs an integer of 1 to 20 (preferably an integer of 1 to 10); c is an integer of 1 to 20 (preferably an integer of 1 to 10, more preferably 1, 2, 3, 4 or 5);
the number of (hydrocarbyl) bonded ends present in the a L groups is the same as the number of (carbonyl) bonded ends present in the b a groups, the a L groups being bonded to each other via their (hydrocarbyl) bonded ends to the (carbonyl) bonded ends of the b a groups;
the number of tertiary amine nitrogen atoms present in the b a groups is greater than the number of (hydrocarbyl) bound ends present in the c R groups, the number of (tertiary amine) bound ends present in the b a groups, as represented by △, is equal to the number of (hydrocarbyl) bound ends present in the c R groups, and the b a groups are bonded to each other through the (tertiary amine) bound ends present therein, as represented by △, and the (hydrocarbyl) bound ends of the c R groups;
said optionally substituted means optionally substituted with one or more (such as 1 to 5, 1 to 4, 1 to 3, 1 to 2 or 1) groups selected from hydroxy, amino, mercapto, halogen and C1-5Linear or branched alkoxy;
the structure shown in formula (I) conforms to the bonding rule.
2. The quaternary ammonium salt surfactant according to claim 1, wherein the quaternary ammonium salt surfactant has a structure represented by formula (I-I):
Figure FDA0001832809890000031
wherein a L groups, equal to or different from each other, are each independently selected from optionally substituted m-valent C1~50Hydrocarbyl and C3~50A heterohydrocarbyl group, m is an integer of 1 to 20 (preferably an integer of 1 to 10), a is an integer of 1 to 20 (preferably an integer of 1 to 10, more preferably 1, 2 or 3); n is0Is composed of
Figure FDA0001832809890000032
Number of charges of group, n0Is an integer of 1 to 20 (preferably an integer of 1 to 10); n XZ-The radicals, equal to or different from each other, are each independently selected from F-、Cl-、Br-、I-And OH-N is an integer of 1 to 20 (preferably 1 to 20)An integer of 1 to 10), Z-is XZ-The number of charges of the group, z is selected from 1, 2 or 3; n XZ-The absolute value of the total number of charges of the radical being equal to n0
In the formula (I-I), b A groups are the same or different and are independently selected from hydrogen and optionally substituted C1~20A linear or branched alkyl group and a group of formula (II-I), at least one A group being selected from the group of formula (II-I); b is an integer of 1 to 20 (preferably an integer of 2 to 10, more preferably 2, 3, 4, 5 or 6);
Figure FDA0001832809890000033
in the group of formula (II-I), the L 'group is selected from optionally substituted n' valent C1~50Hydrocarbyl and C3~50A heterohydrocarbyl group; n 'repeating units are the same or different from each other, and n' is an integer of 1 to 20 (preferably an integer of 1 to 10); r of n' repeating units0Each independently selected from hydrogen, optionally substituted C1~20Straight or linear alkyl and optionally substituted C3~20Straight or branched heteroalkyl (preferably selected from C)1~20Straight or linear alkyl); each of the m ' repeating units a ', b ', c ', d ', which are the same or different from each other, is independently selected from an integer of 0 to 5 (preferably 0, 1 or 2), and at least one a ' is an integer of 1 to 5 and at least one d ' is an integer of 1 to 5; each R of m' repeating units1Each independently selected from hydrogen, optionally substituted C1~20Straight or linear alkyl, optionally substituted C3~20A linear or linear heteroalkyl group and a group of formula (III-I); each R of m' repeating units2Each independently selected from optionally substituted C1~20Straight or branched alkylene and optionally substituted C3~20Linear or linear heteroalkylene; each R of m' repeating units3Each independently selected from optionally substituted C1~20Straight or linear alkyl and optionally substituted C3~20A linear or linear heteroalkyl group; m' is an integer of 1 to 20 (preferably an integer of 1 to 10); is represented by(II-I) the binding end of the group to which the L group in formula (I-I) is bonded;
Figure FDA0001832809890000041
in the formula (III-I), each group and each symbol are as defined in the formula (II-I), and each R in m' repeating units1' each is independently selected from hydrogen, optionally substituted C1~20Straight or linear alkyl, optionally substituted C3~20A linear or linear heteroalkyl group and a group of formula (III-I) (preferably each independently selected from hydrogen, optionally substituted C1~20Straight or linear alkyl and optionally substituted C3~20Linear or linear heteroalkyl);
the number of (hydrocarbyl) bonded ends present in the a L groups is the same as the number of (carbonyl) bonded ends present in the b a groups, the a L groups being bonded to each other via their (hydrocarbyl) bonded ends to the (carbonyl) bonded ends of the b a groups;
said optionally substituted means optionally substituted with one or more (such as 1 to 5, 1 to 4, 1 to 3, 1 to 2 or 1) groups selected from hydroxy, amino, mercapto, halogen and C1-5Linear or branched alkoxy;
the structure shown in the formula (I-I) conforms to the bonding rule.
3. The quaternary ammonium salt surfactant according to claim 1, wherein the quaternary ammonium salt surfactant is selected from the group consisting of quaternary ammonium salt surfactants having the following specific structures or a mixture thereof in any ratio:
Figure FDA0001832809890000051
4. a method for producing a quaternary ammonium salt surfactant, comprising the step of reacting a compound represented by the formula (X) with a compound represented by the formula (Y) or a compound represented by the formula (Z);
Figure FDA0001832809890000052
in formula (X), the L 'group is selected from optionally substituted n' valent C1~50Hydrocarbyl and C3~50A heterohydrocarbyl group; n 'repeating units are the same or different from each other, and n' is an integer of 1 to 20 (preferably an integer of 1 to 10); r in n' repeating units0Each independently selected from hydrogen, optionally substituted C1~20Straight or linear alkyl and optionally substituted C3~20Straight or branched heteroalkyl (preferably selected from C)1~20Straight or linear alkyl); each a 'of the m' repeating units is the same or different from each other, and is independently selected from an integer of 1 to 5 (preferably 1, 2 or 3); each R of m' repeating units1Each independently selected from hydrogen, optionally substituted C1~20Straight or linear alkyl, optionally substituted C3~20A linear or linear heteroalkyl group and a group of formula (X-I); each R of m' repeating units2Each independently selected from optionally substituted C1~20Straight or branched alkylene and optionally substituted C3~20Linear or linear heteroalkylene; m' is an integer of 1 to 20 (preferably an integer of 1 to 10);
Figure FDA0001832809890000061
in the formula (X-I), R0、R2A ' and m ' are as defined in formula (X), each R in m ' repeating units1' each is independently selected from hydrogen, optionally substituted C1~20Straight or linear alkyl, optionally substituted C3~20A linear or linear heteroalkyl group and a group of formula (X-I) (preferably each independently selected from hydrogen, optionally substituted C1~20Straight or linear alkyl and optionally substituted C3~20Linear or linear heteroalkyl) in which at least one R is1' is hydrogen;
in formula (Y), the R' group is optionally substituted maC of valence1~50Hydrocarbyl or C3~50Heterocarbyl (preferably optionally substituted m)aOf valueC1~20Straight or branched alkyl and C3~20Linear or branched heteroalkyl); m isaThe Y groups in the repeating units are the same or different from each other and are each independently selected from F, Cl, Br, I, OH and optionally substituted C1~5Straight or branched chain alkyl (preferably methyl); m isaIs an integer of 1 to 20 (preferably an integer of 1 to 10);
in formula (Z), the R group is optionally substituted mbC of valence1~50Hydrocarbyl or C3~50Heterocarbyl (preferably optionally substituted m)bC of valence1~20Straight or branched alkyl and C3~20Linear or branched heteroalkyl); m isbThe X groups in the repeating units are the same or different from each other and are each independently selected from F, Cl, Br, I and OH; m isbIs an integer of 1 to 20 (preferably an integer of 1 to 10).
5. The process according to claim 4, wherein the molar ratio between the compound of formula (X) (calculated as amine group) and the compound of formula (Y) (calculated as carbonyl group) and the compound of formula (Z) (calculated as X group) is preferably 1: 0.1-10: 0.1 to 10 (more preferably 1: 0.25 to 1: 0.5 to 5).
6. The process according to claim 4, wherein the process comprises the step of reacting the compound represented by the formula (X) with the compound represented by the formula (Y) or the compound represented by the formula (Z); or a step B comprising reacting the compound represented by the formula (X) with the compound represented by the formula (Y) and then reacting the product of the step A with the compound represented by the formula (Z); or a step A comprising reacting the compound represented by the formula (X) with the compound represented by the formula (Z) and then reacting the product of the step B with the compound represented by the formula (Y).
7. The process according to claim 4, wherein a solvent (preferably sulfone, sulfoxide, furan, C) is added to the reaction of the compound of formula (X), the compound of formula (Y) or the compound of formula (Z)1~6Alcohol (b) of,C1~6The ketone (b) may be, for example, one or more selected from dimethyl sulfoxide, tetrahydrofuran, methanol, ethanol, isopropanol, n-butanol, acetone, methyl ethyl ketone, and methyl ethyl ketone).
8. The process according to claim 4, wherein an inert gas is introduced into the reaction of the compound represented by the formula (X), the compound represented by the formula (Y) or the compound represented by the formula (Z).
9. The process according to claim 4, wherein the reaction temperature of the compound represented by the formula (X), the compound represented by the formula (Y) and the compound represented by the formula (Z) is 0 to 200 ℃ (preferably 20 to 150 ℃).
10. The process according to claim 4, wherein the process comprises the step A of reacting the compound represented by the formula (X) with the compound represented by the formula (Y), and the step B of reacting the product of the step A with the compound represented by the formula (Z).
11. The process according to claim 4, wherein the compound of formula (X) is selected from C1~50And/or C1~50Alkyl alcohol amine (more preferably C)2~20And/or C2~20Alkyl alcohol amine of (a).
12. The process according to claim 4, wherein the compound of formula (Y) is selected from C1~50Polycarboxylic acid esters, polycarboxylic acids and polycarboxylic acid halides (more preferably C)2~30Polycarboxylic acid esters of (1).
13. The process according to claim 4, wherein the compound represented by the formula (Y) is selected from the group consisting of dicarboxylic acid esters, tricarboxylic acid esters, tetracarboxylic acid esters, pentacarboxylic acid esters and hexacarboxylic acid esters.
14. The process according to claim 4, wherein the compound represented by the formula (Y) is selected from one or more of the following structures:
Figure FDA0001832809890000081
wherein, the value of x is an integer between 0 and 9; the value of y is an integer selected from 1-10; raEach independently selected from C1-12Linear or branched alkyl and cycloalkyl groups.
15. The process according to claim 4, wherein the compound represented by the formula (Y) is selected from one or more of the following structures:
Figure FDA0001832809890000082
wherein R isaEach independently selected from C1-12Linear or branched alkyl and cycloalkyl groups.
16. The process according to claim 4, wherein the compound represented by the formula (Y) is selected from one or more of the following structures:
Figure FDA0001832809890000091
wherein R isaEach independently selected from C1-12The value of s is selected from an integer between 0 and 9.
17. The process according to claim 4, wherein the compound represented by the formula (Y) is selected from compounds having the following structures:
Figure FDA0001832809890000092
wherein R isaEach independently selected from C1-12Linear or branched alkyl and cycloalkyl groups.
18. The process according to claim 4, wherein the compound of formula (Z) is selected from C1~50Alkyl halide (preferably selected from C)5~30Alkyl halides of (a).
19. The quaternary ammonium salt surfactant according to any one of claims 1 to 3 or the quaternary ammonium salt surfactant produced by the method according to any one of claims 4 to 18 is used as a wetting agent (wetting agent in the field of tertiary oil recovery).
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