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Ternary polymerization polymeric flocculant and preparation method thereof

A polymer flocculant and copolymerization technology, which is applied in the direction of flocculation/sedimentation water/sewage treatment, etc., can solve the problems that ternary copolymerization polymer flocculants have not been reported, and achieve more active groups, mild reaction conditions and simple process Effect

Active Publication Date: 2014-07-23
泽惠环境科技(广州)有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

At present, patent applications for preparing lignin or humic acid into various flocculants through compounding or grafting modification have been published (CN102992458A, CN102583684A, CN102010049A, CN102745789A), but for the method of grafting and copolymerizing the two The research and application of synthetic ternary copolymerized polymer flocculants have not been reported yet

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0014] Example 1: 100 g of alkali lignin was weighed and dissolved in 500 ml of water. Weigh 100 g of potassium humate and dissolve it in 500 ml of water. The above two solutions were mixed, and 5.4 g of potassium persulfate and 3.2 g of sodium thiosulfate were added as initiators. Under the condition of stirring, the reaction temperature was controlled at 50°C, and the constant temperature reaction was carried out for 5 hours to prepare the natural polymer flocculant of lignin-ethylene glycol-humic acid ternary copolymerization.

Embodiment 2

[0015] Example 2: Weigh 150 g of lignosulfonate and dissolve it in 500 ml of water. Weigh 150 g of sodium humate and dissolve it in 500 ml of water. The above two solutions were mixed, and 9.1 g of ammonium persulfate and 6.3 g of sodium thiosulfate were added as initiators. Under the condition of stirring, the reaction temperature is controlled at 70°C, and the constant temperature reaction is carried out for 7 hours to prepare the natural polymer flocculant of lignin-ethylene glycol-humic acid ternary copolymerization.

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PUM

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Abstract

The invention relates to ternary polymerization polymeric flocculant and a preparation method thereof. The preparation method is characterized in that lignin, ethylene glycol and humic acid are used as raw materials and are initiated to polymerize by using an initiating agent under certain reaction conditions, so that the lignin-ethylene glycol-humic acid ternary polymerization polymeric flocculant is prepared. The prepared lignin-ethylene glycol-humic acid ternary polymerization polymeric flocculant is brownish black viscous liquid, non-toxic and environmental friendly, contains numerous active groups and has a good flocculation effect on various electroplating wastewater, dye wastewater, municipal sewage, coking wastewater, montmorillonoid suspension liquid and the like.

Description

technical field [0001] The invention relates to a ternary copolymerized polymer flocculant and a preparation method thereof, belonging to the technical field of organic polymer materials and water treatment flocculants. Background technique [0002] When dealing with urban and industrial sewage with low turbidity and high chroma, adding flocculants to coagulate pollutants in sewage is one of the generally effective methods. It has the characteristics of simple process and low cost, so the development of flocculants at home and abroad is very important. At present, there are many kinds of flocculants used in industry, from low molecular weight to high molecular weight, from single type to compound type, and the general trend is to develop towards the direction of cheap, non-toxic, efficient and multi-purpose. Inorganic flocculants are cheap, but their dosage is high, which will have adverse effects on the ecological environment; organic synthetic polymer flocculants use less...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C08H7/00C08H99/00C02F1/56
Inventor 汪学军楼涛
Owner 泽惠环境科技(广州)有限公司
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