CN101921365B - Preparation method for instant cationic polyacrylamide - Google Patents
Preparation method for instant cationic polyacrylamide Download PDFInfo
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- CN101921365B CN101921365B CN201010276391.1A CN201010276391A CN101921365B CN 101921365 B CN101921365 B CN 101921365B CN 201010276391 A CN201010276391 A CN 201010276391A CN 101921365 B CN101921365 B CN 101921365B
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Abstract
The invention relates to a preparation method for instant cationic polyacrylamide, which is characterized by comprising the following steps: firstly, dissolving 5-15 parts of urea by weight in 400-700 parts of water by weight; then adding 200-600 parts of nonionic monomers by weight and 25-80 parts of cationic monomers by weight, evenly mixing, introducing nitrogen and deoxidizing; and finally adding 0.2-1.0 part of water-soluble initiator by weight and 0.01-0.05 part of chain transfer agent by weight, and carrying out polymerization reaction at the temperature of 20-80 DEG C for 5-10h. The instant cationic polyacrylamide product of the invention with the appearance as a white particle has the grain size within 20-30 meshes, and has the characteristics of high dissolving speed, no toxicity, environmental friendliness and the like. Compared with the traditional polyacrylamide, the instant cationic polyacrylamide has more convenient use and can serve as an organic flocculating agent, a paper strengthening agent, a retention aid and the like to be applied to the fields of municipal sewage and industrial sewage treatment, paper making and the like.
Description
Technical field
The invention belongs to cationic polyacrylamide synthetic method field, be specifically related to a kind of preparation method of instant cationic polyacrylamide.
Background technology
The cationic polyacrylamide of current production, there is the shortcoming and defect such as content is on the low side, poor stability in emulsion-type, dry powder type cationic polyacrylamide due to dissolution time long, be generally greater than 1 hour, cause and dissolve inconvenient, limit use range.Along with sewage work's dissolution equipment level of automation improves, require more and more faster to product dissolution rate, therefore, the preparation method of exploitation instant cationic polyacrylamide necessitates.
Summary of the invention
The object of the invention is to, for the defect existing for existing emulsion-type and dry powder type cationic-type polyacrylamide and deficiency, propose a kind of preparation method with the instant cationic polyacrylamide of good aqueous solubility.
Its technical scheme comprises: the preparation method of instant cationic polyacrylamide, it is characterized in that: first by the water dissolution of the urea of 5-15 weight part at 400-700 weight part, then the non-ionic monomer of 200-600 weight part is added, the cationic monomer of 25-80 weight part, mix, logical nitrogen deoxygenation, adds the water soluble starter of 0.2-1.0 weight part and the chain-transfer agent of 0.01-0.05 weight part, at 20-80 DEG C of polyreaction 5-10 hour.
Described non-ionic monomer is acrylamide, methyl-acrylamide, N-methyl (methyl) acrylamide or N.N-dimethyl (methyl) acrylamide, prioritizing selection acrylamide.
Described cationic monomer is dimethyl diallyl ammonium chloride, diethyl diallyl ammonium chloride, MethacryloyloxyethylTrimethyl Trimethyl Ammonium Chloride, acryloxyethyldimethyl benzyl ammonium chloride, methylacryloxyethyldimethyl benzyl ammonium chloride, acrylamido amidopropyl dimethyl benzyl ammonium chloride, methacryiamidopropyl dimethyl benzyl ammonium chloride, MethacryloyloxyethylTrimethyl Trimethyl Ammonium Chloride, methacryloxypropyl trimethyl ammonium chloride, acryloxypropyl trimethyl ammonium chloride, N, N-dimethyl diallyl ammonium chloride, cationic monomer can be wherein one or more.
Described water soluble starter is the redox initiator of high temperature azo-initiator v50 or Sodium Persulfate and hydrosulphite composition.Described chain-transfer agent is Virahol.
The present invention effectively overcomes emulsion-type and has that content is on the low side, poor stability and dry powder type cationic polyacrylamide be because dissolution time is long, dissolve defect and the deficiencies such as inconvenient, use range is restricted.This product appearance is white particle, within particle diameter 20-30 order scope, has dissolution rate fast, and the nontoxic feature such as environmentally friendly.Compared with conventional polypropylene acid amides, instant cationic polyacrylamide uses convenient, can be applied to the fields such as city life and industry sewage disposal and papermaking as organic floculant, paper strengthening agent, retention aid etc.
Embodiment
Following numerical value is weight part.
embodiment one:
Acrylamide 200
Diethyl diallyl ammonium chloride 40
Acryloxyethyldimethyl benzyl ammonium chloride 8
Virahol 0.01
Deionized water 700
High temperature azo-initiator v50 1.0
Urea 5
Technological process is:
1. take urea by formula ratio and water adds in reactor, stirring and dissolving, add in diethyl diallyl ammonium chloride, acryloxyethyldimethyl benzyl ammonium chloride, acrylamide reactor;
2. under agitation logical nitrogen deoxygenation, adds initiator and Virahol;
3. heat up 30 DEG C, reflect 6 hours, slaking 1 hour;
4. gained colloid is extruded in kneader under 0.5MPa pressure;
5. by micelle in pneumatic drier lower than dry at the temperature of 80 DEG C, pulverize and obtain product.
embodiment two:
Methyl-acrylamide 400
Dimethyl diallyl ammonium chloride 30
Acryloxyethyldimethyl benzyl ammonium chloride 20
Virahol 0.03
Deionized water 550
The redox initiator 0.6 of Sodium Persulfate and hydrosulphite composition
Urea 10
Technological process is:
1. take urea by formula ratio and water adds in reactor, stirring and dissolving ' adds in diethyl diallyl ammonium chloride, acryloxyethyldimethyl benzyl ammonium chloride, acrylamide reactor;
2. under agitation logical nitrogen deoxygenation, adds initiator and Virahol;
3. heat up 40 DEG C, react 8 hours, slaking 1 hour;
4. gained colloid is extruded in kneader under 0.5MPa pressure;
5. by micelle in pneumatic drier lower than dry at the temperature of 80 DEG C, pulverize and obtain product.
embodiment three:
n.N-dimethyl (methyl) acrylamide 600
Diethyl diallyl ammonium chloride 20
Acryloxypropyl trimethyl ammonium chloride 35
Virahol 0.05
Deionized water 400
High temperature azo-initiator v50 0.2
Urea 15
Technological process is:
1. take urea by formula ratio and water adds in reactor, stirring and dissolving, add in diethyl diallyl ammonium chloride, acryloxyethyldimethyl benzyl ammonium chloride, acrylamide reactor;
2. under agitation logical nitrogen deoxygenation, adds initiator and Virahol;
3. heat up 50 DEG C, react 10 hours, slaking 1 hour;
4. gained colloid is extruded in kneader under 0.5MPa pressure;
5. by micelle in pneumatic drier lower than dry at the temperature of 80 DEG C, pulverize and obtain product.
embodiment four:
Acrylamide 200
Diethyl diallyl ammonium chloride 40
MethacryloyloxyethylTrimethyl Trimethyl Ammonium Chloride 8
Virahol 0.01
Deionized water 700
High temperature azo-initiator v50 1.0
Urea 5
Technological process adopts the same technique or other techniques existing.
Claims (1)
1. a preparation method for instant cationic polyacrylamide, is characterized in that, raw material is as follows by weight:
Acrylamide 200
Diethyl diallyl ammonium chloride 40
Acryloxyethyldimethyl benzyl ammonium chloride 8
Virahol 0. 01
Deionized water 700
High temperature azo-initiator v50 1.0
Urea 5
Technological process is:
1. take urea by formula ratio and water adds in reactor, stirring and dissolving, add diethyl diallyl ammonium chloride, acryloxyethyldimethyl benzyl ammonium chloride, acrylamide in reactor;
2. under agitation logical nitrogen deoxygenation, adds initiator and Virahol;
heat up 30 DEG C, react 6 hours, slaking 1 hour;
4. gained colloid is extruded in kneader under 0. 5MPa pressure;
5. by micelle in pneumatic drier lower than dry at the temperature of 80 DEG C, pulverize and obtain product.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201010276391.1A CN101921365B (en) | 2010-09-09 | 2010-09-09 | Preparation method for instant cationic polyacrylamide |
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| Application Number | Priority Date | Filing Date | Title |
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| CN201010276391.1A CN101921365B (en) | 2010-09-09 | 2010-09-09 | Preparation method for instant cationic polyacrylamide |
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| CN101921365A CN101921365A (en) | 2010-12-22 |
| CN101921365B true CN101921365B (en) | 2015-04-22 |
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| CN201010276391.1A Expired - Fee Related CN101921365B (en) | 2010-09-09 | 2010-09-09 | Preparation method for instant cationic polyacrylamide |
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Families Citing this family (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102558436B (en) * | 2011-12-31 | 2013-07-24 | 新疆德蓝股份有限公司 | Method for preparing cationic treatment agent for sewage treatment |
| CN103059219B (en) * | 2013-01-28 | 2015-06-24 | 重庆大学 | Preparation method for hydrophobic-association cationic polyacrylamide |
| CN104177534B (en) * | 2014-08-04 | 2016-08-17 | 中国石油集团渤海钻探工程有限公司 | A kind of cationic polymer thickening agent, fracturing fluid and preparation method thereof |
| CN104357038A (en) * | 2014-10-28 | 2015-02-18 | 东北石油大学 | Chemical method for increasing solution rate of water-soluble polymer dry powder |
| CN106496407B (en) * | 2016-10-13 | 2018-10-16 | 广州安达净水材料有限公司 | Preparation method of cationic flocculant |
| CN110527028B (en) * | 2019-09-05 | 2022-01-04 | 江苏富淼科技股份有限公司 | Instant cationic polyacrylamide and preparation method thereof |
| CN115677924B (en) * | 2022-12-30 | 2023-09-01 | 江苏富淼科技股份有限公司 | Low molecular weight polyacrylamide colloidal particle and preparation method thereof |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1051366A (en) * | 1990-10-09 | 1991-05-15 | 齐鲁石油化工公司研究院 | Dimethylacryl ammonium chloride-acrylamide copolymer |
| US20020035198A1 (en) * | 2000-08-07 | 2002-03-21 | Atofina | Novel water-soluble (co) polymers containing quaternary amino groups, their manufacture and their use |
| CN1814638A (en) * | 2006-02-26 | 2006-08-09 | 许振举 | Method for preparing cation poly propionamide |
| CN101372524A (en) * | 2008-10-17 | 2009-02-25 | 四川通丰科技有限公司 | Process for producing cation polyacrylamide |
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2010
- 2010-09-09 CN CN201010276391.1A patent/CN101921365B/en not_active Expired - Fee Related
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1051366A (en) * | 1990-10-09 | 1991-05-15 | 齐鲁石油化工公司研究院 | Dimethylacryl ammonium chloride-acrylamide copolymer |
| US20020035198A1 (en) * | 2000-08-07 | 2002-03-21 | Atofina | Novel water-soluble (co) polymers containing quaternary amino groups, their manufacture and their use |
| CN1814638A (en) * | 2006-02-26 | 2006-08-09 | 许振举 | Method for preparing cation poly propionamide |
| CN101372524A (en) * | 2008-10-17 | 2009-02-25 | 四川通丰科技有限公司 | Process for producing cation polyacrylamide |
Non-Patent Citations (2)
| Title |
|---|
| 李凤亭,张善发,赵艳.混凝剂与絮凝剂.《混凝剂与絮凝剂》.化学工业出版社,2005,(第1版),78-79,81-82,84-87. * |
| 水溶液聚合法合成聚丙烯酰胺的研究进展;孔振兴;《云南化工》;20060831;第33卷(第4期);58-61,66 * |
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