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A long-chain branched multi-head cationic polyacrylamide and its use

A polyacrylamide and cationic technology, which is applied in the direction of flocculation/sedimentation water/sewage treatment, etc., can solve the problems of poor adaptability to working conditions, low flocculation efficiency, and poor flocculation effect, and achieves simple preparation methods, excellent flocculation performance, and improved The effect of flocculation efficiency

Active Publication Date: 2022-06-03
XINXIANG BOYUAN WATER PURIFYING MATERIALS CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, the current cationic polyacrylamide has problems such as low flocculation efficiency, poor flocculation effect, single variety, and poor adaptability to working conditions.

Method used

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  • A long-chain branched multi-head cationic polyacrylamide and its use
  • A long-chain branched multi-head cationic polyacrylamide and its use
  • A long-chain branched multi-head cationic polyacrylamide and its use

Examples

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Embodiment 1

[0035] Unless otherwise specified, the percentages used in the embodiments of the present invention and the comparative examples are mass percentages.

[0038] The temperature of the polymerization solution is controlled at 2-5°C by a water bath, and 0.0000025 parts of potassium persulfate, 0.000003 parts of sulfurous acid are

Embodiment 2

Embodiment 3

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Abstract

The invention provides a long-chain branched multi-head cationic polyacrylamide and its use. The long-chain branched multi-head cationic polyacrylamide provided by the invention introduces a special structural electrostatic complex extension chain containing cationic groups into the linear chain of the cationic polyacrylamide, thus forming a surface with a The new polyacrylamide flocculant with negative electrostatic suspended particles and strong flocculation effect can effectively improve the flocculation efficiency. The preparation method is simple and does not require high costs. It is very suitable for use in sewage, sludge treatment and other fields, and has broad application prospects. .

Description

Technical field [0001] The invention relates to the field of flocculants, and specifically to a long-chain branched multi-head cationic polyacrylamide and its use as a flocculant. Background technique [0002] Due to its ultra-high molecular weight and excellent water solubility, polyacrylamide has become one of the important water-soluble polymers and plays an important role in wastewater, sludge treatment and other fields. With the rapid development of my country's social economy and the acceleration of urbanization and industrialization, the production of sludge is increasing year by year. In 2020, my country will process approximately 35 million tons / year of municipal sludge (moisture content 80%). The composition of sludge is complex, the moisture content is extremely high, and it contains a large number of organic matter with small particles and strong hydrophilicity. The difficulty of dehydration makes subsequent stacking, transportation, treatment and other stages m...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C08F220/56C08F220/34C08F226/02C02F1/56
Inventor 肖银宝肖博文王引成牛爱连毛彦科
Owner XINXIANG BOYUAN WATER PURIFYING MATERIALS CO LTD