CN103418105B - Formaldehyde scavenger and preparation method thereof - Google Patents
Formaldehyde scavenger and preparation method thereof Download PDFInfo
- Publication number
- CN103418105B CN103418105B CN201310397539.0A CN201310397539A CN103418105B CN 103418105 B CN103418105 B CN 103418105B CN 201310397539 A CN201310397539 A CN 201310397539A CN 103418105 B CN103418105 B CN 103418105B
- Authority
- CN
- China
- Prior art keywords
- parts
- preparation
- based compound
- formaldehyde
- organic solvent
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Fee Related
Links
- WSFSSNUMVMOOMR-UHFFFAOYSA-N Formaldehyde Chemical compound O=C WSFSSNUMVMOOMR-UHFFFAOYSA-N 0.000 title claims abstract description 140
- 239000002516 radical scavenger Substances 0.000 title claims abstract description 30
- 238000002360 preparation method Methods 0.000 title claims abstract description 27
- GEHJYWRUCIMESM-UHFFFAOYSA-L sodium sulfite Chemical compound [Na+].[Na+].[O-]S([O-])=O GEHJYWRUCIMESM-UHFFFAOYSA-L 0.000 claims abstract description 54
- 150000001875 compounds Chemical class 0.000 claims abstract description 38
- 229920000768 polyamine Polymers 0.000 claims abstract description 38
- 235000010265 sodium sulphite Nutrition 0.000 claims abstract description 33
- 239000003960 organic solvent Substances 0.000 claims abstract description 26
- 239000008367 deionised water Substances 0.000 claims abstract description 18
- 229910021641 deionized water Inorganic materials 0.000 claims abstract description 18
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Chemical compound O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 18
- 239000002994 raw material Substances 0.000 claims abstract description 7
- 238000003756 stirring Methods 0.000 claims description 18
- 239000002304 perfume Substances 0.000 claims description 15
- LYCAIKOWRPUZTN-UHFFFAOYSA-N Ethylene glycol Chemical compound OCCO LYCAIKOWRPUZTN-UHFFFAOYSA-N 0.000 claims description 12
- 239000003205 fragrance Substances 0.000 claims description 9
- XSQUKJJJFZCRTK-UHFFFAOYSA-N Urea Chemical compound NC(N)=O XSQUKJJJFZCRTK-UHFFFAOYSA-N 0.000 claims description 6
- 239000004202 carbamide Substances 0.000 claims description 6
- 241000220317 Rosa Species 0.000 claims description 5
- 241000221035 Santalaceae Species 0.000 claims description 5
- 235000008632 Santalum album Nutrition 0.000 claims description 5
- PJJJBBJSCAKJQF-UHFFFAOYSA-N guanidinium chloride Chemical compound [Cl-].NC(N)=[NH2+] PJJJBBJSCAKJQF-UHFFFAOYSA-N 0.000 claims description 5
- CUDYYMUUJHLCGZ-UHFFFAOYSA-N 2-(2-methoxypropoxy)propan-1-ol Chemical compound COC(C)COC(C)CO CUDYYMUUJHLCGZ-UHFFFAOYSA-N 0.000 claims description 4
- 235000019082 Osmanthus Nutrition 0.000 claims description 4
- 241000333181 Osmanthus Species 0.000 claims description 4
- 125000000484 butyl group Chemical group [H]C([*])([H])C([H])([H])C([H])([H])C([H])([H])[H] 0.000 claims description 4
- ZBCBWPMODOFKDW-UHFFFAOYSA-N diethanolamine Chemical compound OCCNCCO ZBCBWPMODOFKDW-UHFFFAOYSA-N 0.000 claims description 4
- 229940043237 diethanolamine Drugs 0.000 claims description 4
- 238000002156 mixing Methods 0.000 claims description 4
- SBZXBUIDTXKZTM-UHFFFAOYSA-N diglyme Chemical compound COCCOCCOC SBZXBUIDTXKZTM-UHFFFAOYSA-N 0.000 claims description 3
- 229960000789 guanidine hydrochloride Drugs 0.000 claims description 2
- YAMHXTCMCPHKLN-UHFFFAOYSA-N imidazolidin-2-one Chemical compound O=C1NCCN1 YAMHXTCMCPHKLN-UHFFFAOYSA-N 0.000 claims description 2
- 230000003647 oxidation Effects 0.000 abstract description 10
- 238000007254 oxidation reaction Methods 0.000 abstract description 10
- -1 amine compound Chemical class 0.000 abstract description 6
- 238000000034 method Methods 0.000 abstract description 5
- 238000006243 chemical reaction Methods 0.000 abstract description 4
- 230000000694 effects Effects 0.000 abstract description 4
- 239000005416 organic matter Substances 0.000 abstract description 3
- 239000000126 substance Substances 0.000 abstract description 3
- 230000009286 beneficial effect Effects 0.000 abstract description 2
- 239000003643 water by type Substances 0.000 description 12
- 238000013019 agitation Methods 0.000 description 8
- 150000001299 aldehydes Chemical class 0.000 description 8
- 235000013877 carbamide Nutrition 0.000 description 8
- 238000013461 design Methods 0.000 description 4
- 239000000686 essence Substances 0.000 description 4
- WSFSSNUMVMOOMR-NJFSPNSNSA-N methanone Chemical compound O=[14CH2] WSFSSNUMVMOOMR-NJFSPNSNSA-N 0.000 description 4
- 239000000203 mixture Substances 0.000 description 4
- 239000005977 Ethylene Substances 0.000 description 3
- 239000003795 chemical substances by application Substances 0.000 description 2
- 239000000975 dye Substances 0.000 description 2
- 239000000080 wetting agent Substances 0.000 description 2
- 241000499489 Castor canadensis Species 0.000 description 1
- SXRSQZLOMIGNAQ-UHFFFAOYSA-N Glutaraldehyde Chemical compound O=CCCCC=O SXRSQZLOMIGNAQ-UHFFFAOYSA-N 0.000 description 1
- 235000011779 Menyanthes trifoliata Nutrition 0.000 description 1
- 241000283973 Oryctolagus cuniculus Species 0.000 description 1
- 238000004061 bleaching Methods 0.000 description 1
- 238000001035 drying Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000010438 heat treatment Methods 0.000 description 1
- 239000010985 leather Substances 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012545 processing Methods 0.000 description 1
- 238000012360 testing method Methods 0.000 description 1
Landscapes
- Disinfection, Sterilisation Or Deodorisation Of Air (AREA)
Abstract
The present invention relates to chemical field, particularly formaldehyde scavenger and preparation method thereof.Wherein, the raw material of this formaldehyde scavenger comprises: with weight parts, 10-200 part polyamines based compound, 10-50 part sodium sulfite, 10-100 part organic solvent and 20-200 part deionized water.Formaldehyde scavenger provided by the invention and preparation method thereof, following beneficial effect can be produced: organic matter that is easy based on formaldehyde and amino-contained reacts, and reaction equation is: H2N-R+HCHO → RHN-CH2-OH adds excessive polyamines based compound in the process removing formaldehyde will make the concentration of free formaldehyde be down in a certain limit range.But the easy oxidation by air of polyamines based compound and losing activity, the amine compound not oxidation by air during sodium sulfite then can ensure to fill a prescription, organic solvent can keep Product Status homogeneous all the time.
Description
Technical field
The present invention relates to chemical field, in particular to formaldehyde scavenger and preparation method thereof.
Background technology
At present, the method for fur tanning is a lot, wherein comprises the aldehyde tannage adopting aldehyde compound tanning agent, aldehyde compound tanning agent as formaldehyde, glutaraldehyde etc.Aldehyde tannage is with low cost, simple to operate, and especially the dermatotome oxidation resistance of aldehyde tannage is strong, and to needing, the fur that oxidation dye dyes or oxidation bleaching fades is very important.But all can there is certain free formaldehyde in the dermatotome of aldehyde tannage, free formaldehyde has harm to human body.EU Committee instruction 2002/233/EC-about the directives prescribe of forbidding formaldehyde, the free formaldehyde content directly and in the leather of skin contact is necessary≤75mg/kg, and common product Free-formaldehyde content is necessary≤150mg/kg.
Summary of the invention
The object of the present invention is to provide a kind of formaldehyde scavenger and preparation method thereof, to solve the above problems.
Provide a kind of formaldehyde scavenger in an embodiment of the present invention, its raw material comprises: with weight parts, 10-200 part polyamines based compound, 10-50 part sodium sulfite, 10-100 part organic solvent and 20-200 part deionized water.
Embodiments provide the preparation method of above-mentioned formaldehyde scavenger, comprising:
Polyamines based compound and deionized water are placed in reactor, are heated to the first design temperature and carry out the first stirring;
After described polyamines based compound dissolves, sodium sulfite, organic solvent are put in described reactor, under the second design temperature, carries out the second stirring, mixing.
Its raw material of this formaldehyde scavenger comprises: with weight parts, 10-200 part polyamines based compound, 10-50 part sodium sulfite, 10-100 part organic solvent and 20-200 part deionized water.In preparation process, be first dissolved in deionized water by polyamines based compound, then in solution, add sodium sulfite, organic solvent, temperature control, stirring 15-30 minute, obtain target product.
Formaldehyde scavenger that the embodiment of the present invention provides and preparation method thereof, can produce following beneficial effect:
Organic matter that is easy based on formaldehyde and amino-contained reacts, and reaction equation is:
H
2N-R+HCHO→RHN-CH
2-OH
In the process removing formaldehyde, add excessive polyamines based compound will make the concentration of free formaldehyde be down in a certain limit range.But the easy oxidation by air of polyamines based compound and losing activity, the polyamines based compound not oxidation by air during sodium sulfite then can ensure to fill a prescription, organic solvent can keep Product Status homogeneous all the time.
Detailed description of the invention
Below by specific embodiment, the present invention is described in further detail.
Embodiments provide a kind of formaldehyde scavenger, its raw material comprises: with weight parts, 10-200 part polyamines based compound, 10-50 part sodium sulfite, 10-100 part organic solvent and 20-200 part deionized water.
Embodiments provide the preparation method of above-mentioned formaldehyde scavenger, comprising:
Polyamines based compound and deionized water are placed in reactor, are heated to the first design temperature and carry out the first stirring;
After described polyamines based compound dissolves, sodium sulfite, organic solvent are put in described reactor, under the second design temperature, carries out the second stirring, mixing.
Its raw material of this formaldehyde scavenger comprises: with weight parts, 10-200 part polyamines based compound, 10-50 part sodium sulfite, 10-100 part organic solvent and 20-200 part deionized water.In preparation process, first polyamines based compound is dissolved in deionized water, then in solution, adds sodium sulfite, organic solvent, temperature control, stirring.
Organic matter that is easy based on formaldehyde and amino-contained reacts, and reaction equation is:
H
2N-R+HCHO→RHN-CH
2-OH
In the process removing formaldehyde, add excessive polyamines based compound will make the concentration of free formaldehyde be down in a certain limit range.But the easy oxidation by air of polyamines based compound and losing activity, the polyamines based compound not oxidation by air during sodium sulfite then can ensure to fill a prescription, organic solvent can keep Product Status homogeneous all the time.
Following the present invention will be described in detail by some specific embodiments and prepare this formaldehyde scavenger:
Step 101, takes;
Take polyamines based compound, sodium sulfite, organic solvent, soluble perfume, deionized water;
Taking ratio in various embodiments can be: with any one value in the following scope of weight parts, 10-200 part polyamines based compound, 10-50 part sodium sulfite, 10-100 part organic solvent, 20-200 part deionized water and 1-5 part soluble perfume; Or by range shorter be: 20-100 part described polyamines based compound, the described sodium sulfite of 12-20 part, the described organic solvent of 12-50 part, the described soluble perfume of 1.5-3 part and the described deionized water of 30-100 part.
Or concrete these embodiments of employing:
Composition embodiment one: with weight parts, 10 parts of polyamines based compounds, 10 parts of sodium sulfites, 10 parts of organic solvents, 20 parts of deionized waters and 1 part of soluble perfume;
The described polyamines based compound of composition embodiment two: 20 parts, 12 parts of described sodium sulfites, 12 parts of described organic solvents, 1.5 parts of described soluble perfumes and 30 parts of described deionized waters
The described polyamines based compound of composition embodiment three: 100 parts, 20 parts of described sodium sulfites, 50 parts of described organic solvents, 3 parts of described soluble perfumes and 100 parts of described deionized waters
Composition embodiment four: with weight parts, 200 parts of polyamines based compounds, 50 parts of sodium sulfites, 100 parts of organic solvents, 200 parts of deionized waters and 5 parts of soluble perfumes;
Wherein, soluble perfume comprise following one or more: flavoring rose essence, osmanthus flower fragrance, sandalwood fragrance.Polyamines based compound comprise following one or more: urea, guanidine hydrochloride, ethylene urea, diethanol amine.Organic solvent comprise following one or more: ethylene glycol, diethylene glycol dimethyl ether, butyl, dipropylene glycol methyl ether, dipropylene.
The reaction equation of formaldehyde and polyamines based compound is:
H
2N-R+HCHO→RHN-CH
2-OH
Sodium sulfite can prevent the oxidation by air of polyamines based compound and lose activity.Soluble perfume effectively can improve the peculiar smell of polyamines based compound.Soluble perfume can keep the state of product homogeneous all the time.
Step 102, is placed in reactor by deionized water and polyamines based compound, dissolves;
This step is to allow polyamines based compound be dissolved in deionized water, and the temperature of heating is 25-30 DEG C, because polyamines based compound is soluble in deionized water, without the need to excessive temperature, stirs.
Step 103, puts into sodium sulfite, organic solvent, soluble perfume in reactor.Control temperature, at 20-30 DEG C, stirs 15-30 minute, obtains target product.
The preparation embodiment of formaldehyde scavenger of the present invention:
Embodiment 1
The preparation of formaldehyde scavenger, comprises step:
1) take, then 40 parts of urea and 60 parts of deionized waters are placed in reactor, heat and stir, temperature is controlled, at 25 DEG C, treat that it dissolves completely;
2) 10 parts of sodium sulfites, 10 parts of ethylene glycol and 2 parts of sandalwood fragrances are dropped in reactor, control temperature is at 20 DEG C, and Keep agitation 15min, namely obtains target product.
Embodiment 2
The preparation of formaldehyde scavenger, comprises step:
1) take, then 40 parts of guanidine hydrochlorides and 60 parts of deionized waters are placed in reactor, heat and stir, temperature is controlled, at 30 DEG C, treat that it dissolves completely;
2) 10 parts of sodium sulfites, 10 parts of diethylene glycol dimethyl ethers and 2 parts of flavoring rose essences are dropped in reactor, control temperature is at 25 DEG C, and Keep agitation 15min, namely obtains target product.
Embodiment 3
The preparation of formaldehyde scavenger, comprises step:
1) take, then 40 parts of ethylene ureas and 60 parts of deionized waters are placed in reactor, heat and stir, temperature is controlled, at 28 DEG C, treat that it dissolves completely;
2) 10 parts of sodium sulfites, 10 parts of butyl and 2 parts of osmanthus flower fragrances are dropped in reactor, control temperature is at 26 DEG C, and Keep agitation 20min, namely obtains target product.
Embodiment 4
The preparation of formaldehyde scavenger, comprises step:
1) take, then 40 parts of diethanol amine and 60 parts of deionized waters are placed in reactor, heat and stir, temperature is controlled, at 29 DEG C, treat that it dissolves completely;
2) 10 parts of sodium sulfites, 10 parts of dipropylene glycol methyl ethers and 2 parts of flavoring rose essences are dropped in reactor, control temperature is at 29 DEG C, and Keep agitation 20min, namely obtains target product.
Embodiment 5
The preparation of formaldehyde scavenger, comprises step:
1) take, then 20 parts of urea, 20 parts of guanidine hydrochlorides and 60 parts of deionized waters are placed in reactor, heat and stir, temperature is controlled, at 25 DEG C, treat that it dissolves completely;
2) 10 parts of sodium sulfites, 10 parts of dipropylene and 2 parts of osmanthus flower fragrances are dropped in reactor, control temperature is at 20 DEG C, and Keep agitation 25min, namely obtains target product.
Embodiment 6
The preparation of formaldehyde scavenger, comprises step:
1) take, then 20 parts of urea, 20 parts of ethylene ureas and 60 parts of deionized waters are placed in reactor, heat and stir, temperature is controlled, at 30 DEG C, treat that it dissolves completely;
2) 10 parts of sodium sulfites, 10 parts of ethylene glycol and 2 parts of sandalwood fragrances are dropped in reactor, control temperature is at 30 DEG C, and Keep agitation 25min, namely obtains target product.
Embodiment 7
The preparation of formaldehyde scavenger, comprises step:
1) take, then 20 parts of urea, 20 parts of diethanol amine and 60 parts of deionized waters are placed in reactor, heat and stir, temperature is controlled, at 28 DEG C, treat that it dissolves completely;
2) 10 parts of sodium sulfites, 10 parts of butyl and 2 parts of flavoring rose essences are dropped in reactor, control temperature is at 26 DEG C, and Keep agitation 30min, namely obtains target product.
Embodiment 8
The preparation of formaldehyde scavenger, comprises step:
1) take, then 20 parts of guanidine hydrochlorides, 20 parts of ethylene ureas and 60 parts of deionized waters are placed in reactor, heat and stir, temperature is controlled, at 29 DEG C, treat that it dissolves completely;
2) 10 parts of sodium sulfites, 10 parts of dipropylene glycol methyl ethers and 2 parts of sandalwood fragrances are dropped in reactor, control temperature is at 24 DEG C, and Keep agitation 30min, namely obtains target product.
The formaldehyde scavenger that above-mentioned arbitrary experimental example is produced is carried out the test of removing formaldehyde treated:
Raw material skin: aldehyde tannage beaver rabbit skin (surveying initial content of formaldehyde)
Liquor ratio: 20
Aldehydes removal: temperature: 35 DEG C
Wetting agent (preferred general rich chemical limited company this wetting agent of product prestige Q-39): 0.5ml/L Main Function allows the quick backwater of dry hide.
The good aldehyde remover of prestige (formaldehyde scavenger) LF:X mL/L is added after hide soaks completely
Intermittent rotary Y hour
Go out skin, drying, dry (survey content of formaldehyde)
Formaldehyde scavenger consumption is the 3mL/L different disposal time, and result is as follows:
Processing time is 3 hours, and different formaldehyde scavenger consumption result is as follows:
Can reach a conclusion from above result, as long as use suitable consumption, process the sufficiently long time, formaldehyde scavenger to the result of aldehyde tannage fur can reach EU Committee instruction 2002/233/EC-about forbidding formaldehyde directives prescribe.
The foregoing is only the preferred embodiments of the present invention, be not limited to the present invention, for a person skilled in the art, the present invention can have various modifications and variations.Within the spirit and principles in the present invention all, any amendment done, equivalent replacement, improvement etc., all should be included within protection scope of the present invention.
Claims (7)
1. a preparation method for formaldehyde scavenger, is characterized in that, comprising:
Polyamines based compound and deionized water are placed in reactor, are heated to 25-30 DEG C and carry out the first stirring;
After described polyamines based compound dissolves, sodium sulfite, organic solvent are put in described reactor, at 20-30 DEG C, carries out the second stirring, mixing;
With parts by weight, described polyamines based compound 10-200 part, described sodium sulfite 10-50 part, described organic solvent 10-100 part, described deionized water 20-200 part.
2. preparation method according to claim 1, is characterized in that, with parts by weight, raw material also comprises 1-5 part soluble perfume;
Described sodium sulfite, organic solvent are put in described reactor and also comprised: soluble perfume is put in described reactor.
3. preparation method according to claim 2, it is characterized in that, with parts by weight, described polyamines based compound 20-100 part, described sodium sulfite 12-20 part, described organic solvent 12-50 part, described soluble perfume 1.5-3 part, described deionized water 30-100 part.
4. preparation method according to claim 2, is characterized in that, described soluble perfume comprise following one or more: flavoring rose essence, osmanthus flower fragrance, sandalwood fragrance.
5. preparation method according to claim 1, is characterized in that, described polyamines based compound comprise following one or more: urea, guanidine hydrochloride, ethylene urea, diethanol amine.
6. preparation method according to claim 1, is characterized in that, described organic solvent comprise following one or more: ethylene glycol, diethylene glycol dimethyl ether, butyl, dipropylene glycol methyl ether, dipropylene.
7. preparation method according to claim 1, is characterized in that, the described second mixing time stirred is 15-30 minute.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
CN201310397539.0A CN103418105B (en) | 2013-09-04 | 2013-09-04 | Formaldehyde scavenger and preparation method thereof |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
CN201310397539.0A CN103418105B (en) | 2013-09-04 | 2013-09-04 | Formaldehyde scavenger and preparation method thereof |
Publications (2)
Publication Number | Publication Date |
---|---|
CN103418105A CN103418105A (en) | 2013-12-04 |
CN103418105B true CN103418105B (en) | 2015-10-14 |
Family
ID=49643826
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
CN201310397539.0A Expired - Fee Related CN103418105B (en) | 2013-09-04 | 2013-09-04 | Formaldehyde scavenger and preparation method thereof |
Country Status (1)
Country | Link |
---|---|
CN (1) | CN103418105B (en) |
Families Citing this family (6)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN103739804B (en) * | 2013-12-25 | 2015-10-07 | 重庆建峰浩康化工有限公司 | The scavenging agent of etherified amino resins Free-formaldehyde and using method thereof |
CN104623855B (en) * | 2015-02-06 | 2018-02-06 | 山东恒诺环保科技有限公司 | A kind of plant type formaldehyde scavenger and preparation method |
CN105521827A (en) * | 2015-09-16 | 2016-04-27 | 广州长裕化工科技有限公司 | formaldehyde-removal odor-removal double effect catalyst |
JP2019026753A (en) * | 2017-07-31 | 2019-02-21 | 株式会社ブリヂストン | Aldehyde scavenger for polyurethane, polyurethane and method for producing polyurethane |
JP7039724B2 (en) * | 2018-03-27 | 2022-03-22 | ミリケン・アンド・カンパニー | Compositions and Methods for Reducing the Aldehyde Content of Polyurethane Foams |
CN109453492A (en) * | 2018-11-29 | 2019-03-12 | 重庆佩尔哲汽车内饰系统有限公司 | A kind of aldehyde remover, felt and preparation method |
Citations (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN1589952A (en) * | 2003-08-26 | 2005-03-09 | 上海赛艾生物科技有限公司 | Visible formaldehyde gas eliminator and formaldehyde detecting bead and their preparation method |
CN1743032A (en) * | 2005-09-09 | 2006-03-08 | 罗文圣 | Floor-board with low free formaldehyde release and furniture production method |
CN101874918A (en) * | 2009-04-28 | 2010-11-03 | 上海旗洲环保科技发展有限公司 | Novel efficient formaldehyde scavenger |
CN103230732A (en) * | 2013-04-11 | 2013-08-07 | 林翔云 | A camphor deodorizing liquid for formaldehyde elimination and a preparation method therefor |
-
2013
- 2013-09-04 CN CN201310397539.0A patent/CN103418105B/en not_active Expired - Fee Related
Patent Citations (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN1589952A (en) * | 2003-08-26 | 2005-03-09 | 上海赛艾生物科技有限公司 | Visible formaldehyde gas eliminator and formaldehyde detecting bead and their preparation method |
CN1743032A (en) * | 2005-09-09 | 2006-03-08 | 罗文圣 | Floor-board with low free formaldehyde release and furniture production method |
CN101874918A (en) * | 2009-04-28 | 2010-11-03 | 上海旗洲环保科技发展有限公司 | Novel efficient formaldehyde scavenger |
CN103230732A (en) * | 2013-04-11 | 2013-08-07 | 林翔云 | A camphor deodorizing liquid for formaldehyde elimination and a preparation method therefor |
Also Published As
Publication number | Publication date |
---|---|
CN103418105A (en) | 2013-12-04 |
Similar Documents
Publication | Publication Date | Title |
---|---|---|
CN103418105B (en) | Formaldehyde scavenger and preparation method thereof | |
US11040890B2 (en) | Tannery process with effluent recycling | |
CN104059230A (en) | Block amino silicone oil production method | |
TR201910282T4 (en) | New method for coloring and processing substrates. | |
ZA200801051B (en) | A process for preparing a textile treatment auxiliary composition and a process for preparing a composition for the laundering and treatment of fabric | |
TWI637774B (en) | Manufacturing method of deodorant and deodorant | |
CN103397116A (en) | Tanning method of Tan sheep fur | |
ATE304075T1 (en) | METHOD AND APPARATUS FOR THE REDUCTION OF VAK AND SULFUR DYES | |
DE502004011953D1 (en) | METHOD FOR HYDROPHOBICIZING TEXTILE MATERIALS | |
CN104673943A (en) | Method for manufacturing environment-friendly ecological tanned lamb skin | |
CN104611906A (en) | Hydrogen peroxide bleaching catalyst and preparation method thereof | |
CN101955249B (en) | A kind of preparation method of special dehydrating agent for cow dung | |
CN101525672A (en) | Giant salamander leather production method and product thereof | |
CN102443660B (en) | Fur tanning-piercing and printing process and tanning fur | |
CN104940036B (en) | The preparation method of environment-friendly type large arch dam moisturizer | |
CN111118235B (en) | Method for tanning leather by external electric field | |
CN105217719A (en) | The treatment process of heavy metal chromium in a kind of leather-making waste water | |
RU2151190C1 (en) | Offal treatment process | |
CN205518947U (en) | Novel kitchen garbage processing system | |
CN103334302B (en) | A kind of clothing finishing agent and preparation method | |
CN104944557B (en) | A kind of method using modified Calcium magnesium minerals material process formaldehyde waste water | |
CN106145240A (en) | A kind of Cr(VI) method of wastewater treatment | |
CN103667548B (en) | A kind of synthetic sperm oil fat liquoring complex agent and preparation method thereof | |
CN102978902B (en) | Natural color-rendering sorting method for polyester fabrics | |
CN105126870A (en) | Preparation method of catalyst for treating low-concentration formaldehyde wastewater |
Legal Events
Date | Code | Title | Description |
---|---|---|---|
C06 | Publication | ||
PB01 | Publication | ||
C10 | Entry into substantive examination | ||
SE01 | Entry into force of request for substantive examination | ||
C14 | Grant of patent or utility model | ||
GR01 | Patent grant | ||
CF01 | Termination of patent right due to non-payment of annual fee | ||
CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20151014 |