Manufacturing method of papermaking sewage type cationic polyacrylamide

A technology of polyacrylamide and paper-making sewage, which is applied in the field of paper-making sewage-type cationic polyacrylamide, can solve the problems of unreachable, backward technology, high price, etc., and achieve high stability, good adsorption and high purity.

Inactive Publication Date: 2013-02-27
QINGDAO NATHAN FLOCCULANT
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

At present, my country’s cationic polyacrylamide for papermaking sewage treatment is both imported and domestically produced, and there are two types of products in the form of solid particles and emulsions (the emulsion type is rarely used due to the inconvenience of transportation); although the performance of imported products is relatively stable, but The price is high, and there is a lot of resistance in the promotion of all applications; the price of domestic products is relatively suitable, but due to the backward technology and insufficient technical support,

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Example Embodiment

[0012] Example 1

[0013] First, the initiation system A is added to the mixed solution of acrylamide and cationic monomer, and then the initiation system B is added. The vertical reaction kettle equipment is used to react for 0.5 hours to 2 hours at normal temperature and pressure to form a transparent gel, which is then processed by Aging at 80-95℃ for 0.5 hours to 2 hours, after the process of granulation→salting out→drying→pulverizing→screening→packaging, the ionicity is between 20%-30% and the molecular weight is 800-12 million. Cationic polyacrylamide product with apparent viscosity greater than 40cP; the initiator system A is azo chemicals added to the mixed solution, which are V40, V44 and V50, and the addition amount is 0.001 times the weight of the mixed solution, and the initiator system is added to the mixed solution. B is an oxidizing agent and a reducing agent, the oxidizing agent is potassium persulfate and sodium persulfate, and the reducing agent is sodium sul...

Example Embodiment

[0014] Example 2

[0015] First, the initiation system A is added to the mixed solution of acrylamide and cationic monomer, and then the initiation system B is added. The vertical reaction kettle equipment is used to react for 0.5 hours to 2 hours at normal temperature and pressure to form a transparent gel, which is then processed by Aging at 80-95℃ for 0.5 hours to 2 hours, after the process of granulation→salting out→drying→pulverizing→screening→packaging, the ionicity is between 20% and 30%, the molecular weight is 800-12 million, and the apparent Cationic polyacrylamide product with a viscosity greater than 40cP; the initiator system A added to the mixed solution is an azo chemical, V59 and V60, and the addition amount is 0.002 times the weight of the mixed solution, and the initiator system B added to the mixed solution is an oxidant and reducing agent, the oxidizing agent is potassium hydrogen persulfate, sodium hydrogen persulfate and ammonium persulfate, the reducing ...

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PUM

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Abstract

The invention provides a manufacturing method of papermaking sewage type cationic polyacrylamide, which is characterized in that triggering systems A and B are added in acrylamide and cationic monomer mixed liquor respectively to react in a vertical reaction kettle and generate gel and cationic polyacrylamide product whose ionic degree is 20-30 percent, molecular weight is 8000-12000 thousands, and apparent viscosity is more than 40 cP. The positive effects of the manufacturing method are as follows: on the basis of previous research, the method is creatively adopted to obtain the cationic polyacrylamide product whose ionic degree is 20-30 percent; molecular weight is 8000-12000 thousands; and apparent viscosity is more than 40 cP; and the cationic polyacrylamide has the characters of good adsorbability, high purity, good stability, and is safe and healthy.

Description

technical field [0001] The invention belongs to the technical field of sewage treatment agents, and in particular relates to a method for manufacturing paper-making sewage-type cationic polyacrylamide. Background technique [0002] Papermaking sewage cationic polyacrylamide is mainly used for the removal of sludge in the process of papermaking sewage treatment. At present, my country’s cationic polyacrylamide for papermaking sewage treatment is both imported and domestically produced, and there are two types of products in the form of solid particles and emulsions (the emulsion type is rarely used due to the inconvenience of transportation); although the performance of imported products is relatively stable, but The price is high, and there is a lot of resistance in the promotion of all applications; the price of domestic products is relatively suitable, but due to the backward technology and insufficient technical support, it leads to confusion in the product market and appl...

Claims

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Application Information

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IPC IPC(8): C08F220/56C08F4/40C08F4/04
Inventor 蔺宝森蔺文才
Owner QINGDAO NATHAN FLOCCULANT
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