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A kind of preparation method of modified polyacrylamide water treatment material

A polyacrylamide water and modification technology, which is applied in water/sludge/sewage treatment, chemical instruments and methods, descaling and water softening, etc., can solve the problems of high cost of biological treatment, environmental impact, secondary components of reagents Pollution and other problems, to achieve good water treatment effect, good safety and environmental protection, and superior comprehensive performance

Active Publication Date: 2021-03-26
河北紫金化工产品有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] At present, there are physical, chemical, biological, comprehensive and other methods to deal with the pollution of water resources, but most of the physical methods have problems of poor treatment effect and unstable treatment rate; the cost of biological methods is too high to be popularized and used; Chemical methods are used to treat sewage, but the existing sewage treatment agents have secondary pollution problems in their reagent components, which will also have a certain impact on the environment

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0014] A preparation method of modified polyacrylamide water treatment material, comprising the following steps:

[0015] (1) Get the sodium persulfate of 3 weight parts, join in the deionized water of 30 times of its weight, stir, obtain initiator solution;

[0016] (2) Get 10 parts by weight of stearic acid and heat to soften, mix with 7 parts by weight of triethanolamine, send it into the reactor, add 1% p-toluenesulfonic acid of the mixture weight, feed nitrogen, adjust the reaction The temperature of the kettle was 167°C, and the reaction was stirred for 5 hours to obtain the ester amine;

[0017] (3) Get 3 parts by weight of hydroxypropyl methylcellulose, join it in dimethyl carbonate whose weight is 8 times, stir evenly, and obtain fiber solution;

[0018] (4) Take the above-mentioned ester amine, add it to the fiber solution, stir evenly, send it into the reactor, feed nitrogen, adjust the temperature of the reactor to 50°C, react for 30 hours, add 100 parts by weight...

Embodiment 2

[0020] A preparation method of modified polyacrylamide water treatment material, comprising the following steps:

[0021] (1) Get the sodium persulfate of 4 weight parts, join in the deionized water of 40 times of its weight, stir, obtain initiator solution;

[0022] (2) Get 13 parts by weight of stearic acid and heat to soften, mix with 10 parts by weight of triethanolamine, send it into the reactor, add 3% p-toluenesulfonic acid of the mixture weight, feed nitrogen, adjust the reaction The temperature of the kettle is 180°C, and the reaction is stirred for 6 hours to obtain the ester amine;

[0023] (3) Get 5 parts by weight of hydroxypropyl methylcellulose, join it in dimethyl carbonate whose weight is 10 times, stir evenly to obtain fiber solution;

[0024] (4) Take the above-mentioned ester amine, add it to the fiber solution, stir evenly, send it into the reaction kettle, feed nitrogen gas, adjust the temperature of the reaction kettle to 60°C, react for 40 hours, add 1...

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Abstract

The invention discloses a method for preparing a modified polyacrylamide water treatment material. Stearic acid and triethanolamine are subjected to blending reaction, obtained ester amine is mixed with a dimethyl carbonate solution of hydroxypropyl methylcellulose to perform quaternarization, obtained quaternary ammonium salt is used to treat acrylamide monomer, and polymerization is performed under the action of an initiator, so that quaternary ammonium salt grafted polyacrylamide is obtained. The method is high in finished product stability, good in water treatment effect, safety and environmental friendliness, and excellent in overall performance.

Description

technical field [0001] The invention belongs to the field of water treatment materials, and in particular relates to a preparation method of a modified polyacrylamide water treatment material. Background technique [0002] Due to population growth and economic development, a series of problems affecting the quality of resources caused by excessive exploitation and unreasonable development and utilization of resources have directly threatened the survival of us and future generations; sewage treatment technology has a great impact on water saving, energy saving, etc. The problem plays a very important role, but at the same time, the use of sewage treatment chemicals also has a certain impact on the environment. In the cooling water system, in various occasions where the water temperature is higher than the ambient temperature, the scaling of calcium carbonate and other inorganic salts will bring serious consequences. In recent years, in the field of water treatment, the appl...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C08F251/02C08F220/56C02F5/12
CPCC02F5/12C08F251/02C08F220/56
Inventor 胡明梅
Owner 河北紫金化工产品有限公司
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