CN1084345C - Process for preparing high-molecular cationic polymer - Google Patents
Process for preparing high-molecular cationic polymer Download PDFInfo
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- CN1084345C CN1084345C CN99111314A CN99111314A CN1084345C CN 1084345 C CN1084345 C CN 1084345C CN 99111314 A CN99111314 A CN 99111314A CN 99111314 A CN99111314 A CN 99111314A CN 1084345 C CN1084345 C CN 1084345C
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- acrylamide
- cationic polymer
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- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08F—MACROMOLECULAR COMPOUNDS OBTAINED BY REACTIONS ONLY INVOLVING CARBON-TO-CARBON UNSATURATED BONDS
- C08F226/00—Copolymers of compounds having one or more unsaturated aliphatic radicals, each having only one carbon-to-carbon double bond, and at least one being terminated by a single or double bond to nitrogen or by a heterocyclic ring containing nitrogen
- C08F226/02—Copolymers of compounds having one or more unsaturated aliphatic radicals, each having only one carbon-to-carbon double bond, and at least one being terminated by a single or double bond to nitrogen or by a heterocyclic ring containing nitrogen by a single or double bond to nitrogen
- C08F226/04—Diallylamine
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- Polymers & Plastics (AREA)
- Organic Chemistry (AREA)
- Addition Polymer Or Copolymer, Post-Treatments, Or Chemical Modifications (AREA)
- Separation Of Suspended Particles By Flocculating Agents (AREA)
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Abstract
The present invention relates to a preparation method for a high molecular weight cationic polymer, which belongs to the synthesis class of water-soluble polymers. A novel multielement compound redox initiation system is used, and various auxiliary agents are added for initiating diallyldimethylammonium chloride and an acrylamide water solution to copolymerize. Thus, a powder product of the high molecular weight cationic polymer is prepared, the powder product is easy to dissolve in water, the content of residual monomers of the powder product is smaller than or equal to 0.1 wt%, a limiting viscosity number is from 14.5 to 20.5 dl/g (which is equivalent to molecular weight of 90 to 150 million), and the percentage content of DMDAAC is from 0.5 to 50%. The product can be widely used for petroleum, sewage treatment, textiles, paper making and chemical industry for daily used articles.
Description
The present invention is the preparation method of high-molecular cationic polymer, belongs to the synthetic class of water-soluble polymer.
Dimethyl diallyl ammonium chloride (being abbreviated as DMDAAC) has performances such as good adsorption, shear resistant, temperature tolerance, acid and alkali-resistance with the multipolymer of acrylamide, is widely used in oil, papermaking, sewage disposal, weaving, daily use chemicals and other industry.Begin from the fifties, comparatively deep research has been carried out in the copolymerization of DMDAAC and acrylamide both at home and abroad, but because the monomeric activity of DMDAAC is low and the restriction of factors such as initiator system, the limiting viscosity of gained multipolymer is little, molecular weight is on the low side, residual monomer content is higher, water-soluble relatively poor.The present invention adopts new multicomponent combined oxidation reduction initiating system, adds different auxiliary agents and changes the cationic polymers powder product that polymerization process condition has successfully prepared high molecular and quick-dissolving DMDAAC and acrylamide.
The used dimethyl diallyl ammonium chloride (DMDAAC) of the present invention is industrial refining pure pulvis; Acrylamide monomer is 30% the industrial AM aqueous solution of producing through biological enzyme propene hydrate nitrile, and the refining body that obtains through ion-exchange does not contain Cu again, and Fe is between 0.1--0.5ppm.
Persulphate, N-ethylene methacrylic imines, urea, ammoniacal liquor, formaldehyde close time sodium bisulfite and are all SILVER REAGENT in the used polynary combined oxidation reduction initiating system of the present invention, and wherein persulphate comprises ammonium persulphate, Potassium Persulphate, Sodium Persulfate.
Used auxiliary agent disodium ethylene diamine tetraacetate (EDTA-2Na) and the tensio-active agent span-20 of the present invention is all SILVER REAGENT.
--copolymerization--intensification slaking--granulation--drying--pulverizing--screening that the manufacturing process of high-molecular cationic polymer of the present invention is as follows: the pure system of monomer.
Characteristics of the present invention are to it is characterized in that in polymerization system, with respect to two kinds of monomeric gross weight numbers, are 0.5～50% in the monomer diallyldimethylammonChloride Chloride (DMDAAC) of weight percent, preferably 0.5～30%; Monomer acrylamide (AM) is 50～99.5%, preferably 70～99.5%.
Polynary combined oxidation reduction initiator and outer adding assistant in the polymerization procedure of the present invention, as follows with respect to the per-cent of two kinds of total monomer weights:
Persulphate is 0.005～0.5%, preferably 0.01～0.05%;
N-ethylene methacrylic imines is 0.05～1.0%, preferably 0.2～0.6%;
Urea is 0.01～0.5%, preferably 0.03～0.06%;
It is 0.005～0.5% that formaldehyde closes time sodium bisulfite, preferably 0.01～0.05%;
Disodium ethylene diamine tetraacetate is 0.01～2.0%, preferably 0.03～0.06%;
Span-20 is 0.005～0.5%, preferably 0.01～0.05%.
Other polymerization process condition is:
The polymerisation medium pH value is 7.0～12.0, preferably 7～9;
The polymerization kick off temperature (℃) be 5～50, preferably 10～20 ℃;
Reaction times is 3～16 hours, preferably 5～8 hours;
Polymeric monomer concentration is for being 10～50%, preferably 25～40%.
Unusual effect of the present invention and advantage are:
1, adopts new multicomponent combined oxidation reduction initiating system, reduced the polymerization kick off temperature, the multiple free radical that forms in the system causes dimethyl diallyl ammonium chloride and acrylamide successively, helps the carrying out of transfer reaction, can obtain high-molecular cationic polymer; The intensification slaking of polymerization later stage is that reaction guarantees completely.
2, adopt the powdery cationic polymeric molecule amount of gained of the present invention to be 900--1800 ten thousand, soluble in water.
3, the residual monomer content≤0.1%wt of product can be widely used in oil, sewage disposal, weaving, papermaking and day chemical industry.
Embodiment 1
Taking by weighing 0.21 gram dimethyl diallyl ammonium chloride (DMDAAC) industrial refining pure pulvis, 70 gram acrylamide monomers (biological process is produced the AM aqueous solution of purified 30%), appropriate amount of deionized water to total liquid measure is 100 grams, add in the port grinding bottle, stirring and evenly mixing is mixed with the solution of required monomer concentration; Again 0.1 gram N-ethylene methacrylic imines, 0.01 gram urea, 0.005 gram formaldehyde being closed time sodium bisulfite, 0.01 gram disodium ethylene diamine tetraacetate and 0.01 gram span-20 adds in the port grinding bottle; Port grinding bottle is put in 15 ℃ the water bath with thermostatic control, letting nitrogen in and deoxidizing added 0.005 gram ammonium persulphate after 25 minutes, continued logical nitrogen after 5 minutes, sealed port grinding bottle with emulsion tube; After the standing and reacting 3 hours,, continue reaction 3 hours, take out blob of viscose then warming-in-water to 80 ℃; Through granulation, oven dry, pulverize, sieve, obtaining 20～100 orders, residual monomer content and be 0.04%wt, intrinsic viscosity 20.50, molecular weight is that 1,518 ten thousand white powdery cationic polymers products (press GB 12005.1-89 and measure, and molecular weight M is calculated as follows: [η]=3.73 * 10 by intrinsic viscosity [η]
-4M
0.66).
Embodiment 2
Remove and add the industrial refining pure pulvis of 2.40 gram dimethyl diallyl ammonium chlorides (DMDAAC), all the other are with embodiment 1, and obtaining 20～100 orders, residual monomer content and be 0.07%wt, intrinsic viscosity 18.32, molecular weight is 1,280 ten thousand white powdery cationic polymers products.
Embodiment 3
Remove and add the industrial refining pure pulvis of 9.0 gram dimethyl diallyl ammonium chlorides (DMDAAC), all the other are with embodiment 1, and obtaining 20～100 orders, residual monomer content and be 0.08%wt, intrinsic viscosity 16.80, molecular weight is 1,122 ten thousand white powdery cationic polymers products.
Claims (3)
1. the preparation method of a high-molecular cationic polymer, it is characterized in that forming by the pure system of monomer, copolymerization, intensification slaking, granulation, drying, pulverizing and screening step, adopt polynary combined oxidation reduction initiating system, two kinds of monomers of dimethyl diallyl ammonium chloride/acrylamide are carried out the aqueous free radical copolymerization; In polymerization system, with respect to two kinds of monomeric gross weight numbers, be 0.5～50% in the monomer diallyldimethylammonChloride Chloride of weight percent, the monomer acrylamide is 50～99.5%; In the polynary combined oxidation reduction initiating system, persulphate concentration is 0.005～0.5%, and N-ethylene methacrylic imines is 0.05～1.0%, and urea is 0.01～0.5%, and it is 0.005～0.5% that formaldehyde closes time sodium bisulfite; Polymerization process condition is: polymerisation medium pH value is 7.0～12.0, and the polymerization kick off temperature is 5～50 ℃, and the reaction times is 3～16 hours, and polymeric monomer concentration is 10～50%.
2. according to right 1 described method, it is characterized in that in the polymerization system, with respect to two kinds of monomeric gross weight numbers, is 0.5～30% in the monomer diallyldimethylammonChloride Chloride of weight percent, and the monomer acrylamide is 70～99.5%; In the polynary combined oxidation reduction initiating system, persulphate concentration is 0.01～0.05%, and N-ethylene methacrylic imines is 0.2～0.6%, and urea is 0.03～0.06%, and it is 0.01～0.05% that formaldehyde closes time sodium bisulfite.
3. according to right 1 described method, it is characterized in that polymerization process condition is: polymerisation medium pH value is 7.0～9.0, and the polymerization kick off temperature is 10～20 ℃, and the reaction times is 5～8 hours, and polymeric monomer concentration is 25～40%.
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| Application Number | Priority Date | Filing Date | Title |
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| CN99111314A CN1084345C (en) | 1999-08-05 | 1999-08-05 | Process for preparing high-molecular cationic polymer |
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| CN99111314A CN1084345C (en) | 1999-08-05 | 1999-08-05 | Process for preparing high-molecular cationic polymer |
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| CN1246487A CN1246487A (en) | 2000-03-08 |
| CN1084345C true CN1084345C (en) | 2002-05-08 |
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| CN99111314A Expired - Fee Related CN1084345C (en) | 1999-08-05 | 1999-08-05 | Process for preparing high-molecular cationic polymer |
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Families Citing this family (11)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1295257C (en) * | 2004-12-28 | 2007-01-17 | 大庆东昊投资有限公司 | Method for preparing high molecular weight cation type polyacrylamide |
| CN100372876C (en) * | 2005-03-17 | 2008-03-05 | 大连广汇化学有限公司 | Method of preparing high molecular weight cationic polyacrylamide |
| CN100431654C (en) * | 2006-10-23 | 2008-11-12 | 中国石油大学(北京) | Pre-treating process for sewage from thick oil refining |
| CN101186672B (en) * | 2006-11-15 | 2010-05-12 | 南京理工大学 | Preparation method of aqueous solution polymerization of dimethyl diallyl ammonium chloride and acrylamide copolymer |
| CN102336866B (en) * | 2010-07-27 | 2013-11-20 | 上海洗霸科技股份有限公司 | Cleaning agent for blanket of high-speed paper machine, |
| CN101914181B (en) * | 2010-09-06 | 2013-03-20 | 长春工业大学 | Method for preparing low-gel content epoxy acrylate rubber |
| CN103962111B (en) * | 2014-05-08 | 2016-02-17 | 闽江学院 | Cationic water gel rubber material |
| CN104176788B (en) * | 2014-09-09 | 2015-11-04 | 中国石油化工股份有限公司 | A kind of degreaser for oil field binary combination flooding produced sewerage and preparation method thereof |
| CN104356294A (en) * | 2014-11-14 | 2015-02-18 | 天津大港油田滨港集团博弘石油化工有限公司 | Polyacrylamide flocculant and preparation method thereof |
| CN105153361B (en) * | 2015-08-07 | 2019-05-10 | 中国石油化工股份有限公司胜利油田分公司勘探开发研究院 | A kind of partially branched and partially cross-linked polymer oil displacing agent and preparation method thereof |
| CN107880213B (en) * | 2017-11-21 | 2019-12-24 | 山东大学 | Amphiphilic polymer super heavy oil viscosity reducer modified by siloxane quaternary ammonium salt and its preparation method and application |
Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1052869A (en) * | 1989-12-28 | 1991-07-10 | 日东化学工业株式会社 | Water-in-Oil Emulsions of Cationic Polymers |
| CN1059342A (en) * | 1986-11-11 | 1992-03-11 | 住友化学工业株式会社 | The method for preparing cationic polymeric dispersion |
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1999
- 1999-08-05 CN CN99111314A patent/CN1084345C/en not_active Expired - Fee Related
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1059342A (en) * | 1986-11-11 | 1992-03-11 | 住友化学工业株式会社 | The method for preparing cationic polymeric dispersion |
| CN1052869A (en) * | 1989-12-28 | 1991-07-10 | 日东化学工业株式会社 | Water-in-Oil Emulsions of Cationic Polymers |
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| CN1246487A (en) | 2000-03-08 |
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