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Hyperbranched cationic polymer emulsion, and application thereof in sludge dewatering

A cationic polymer and emulsion technology, applied in water/sludge/sewage treatment, sludge treatment, chemical instruments and methods, etc., can solve the problem of difficult to obtain high molecular weight polymers, difficult control of cationic degree, and sludge dehydration effect Inadequate and other problems, to achieve good dehydration effect, high molecular weight, high cationic effect

Inactive Publication Date: 2019-06-18
湖北康创科技有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] The existing polymer sludge dewatering agent production process is not easy to obtain high molecular weight polymers, and the cationic degree is not easy to control, and the sludge dewatering effect is not good, which limits the application field

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0036] A kind of preparation method of hyperbranched cationic polymer emulsion, concrete steps are as follows:

[0037] (1) Heat titanium carbonitride in an inert gas containing oxygen to make titanium carbonitride, use acryloyl chloride modified glass fiber powder as a carrier, and carry titanium carbonitride and manganese acetate as active components to make a catalyst ;

[0038] (2) Add N-aminoethylpiperazine and N-isopropylacrylamide to water 10 times the total weight, and stir evenly to obtain the first phase;

[0039] (3) Diacrylate polyethylene glycol ester and methacrylic acid ethyleneoxy polyethylene glycol ester are added to water of 30 times the total weight, and stirred evenly to obtain the second phase;

[0040] (4) Add dimethylaminoethyl methacrylate and 2-vinylpyridine to 10 times the total weight of water, and stir to obtain the third phase;

[0041] (5) Add initiator, chain transfer agent and catalyst to the third phase, polymerize at 30°C for 2 hours, and s...

Embodiment 2

[0053] A kind of preparation method of hyperbranched cationic polymer emulsion, concrete steps are as follows:

[0054] (1) Heat titanium carbonitride in an inert gas containing oxygen to make titanium carbonitride, use acryloyl chloride modified glass fiber powder as a carrier, and carry titanium carbonitride and manganese acetate as active components to make a catalyst ;

[0055] (2) Add N-aminoethylpiperazine and N-isopropylacrylamide to water 20 times the total weight, and stir evenly to obtain the first phase;

[0056] (3) Diacrylate polyethylene glycol ester and methacrylic acid ethyleneoxy polyethylene glycol ester are added to water of 40 times the total weight, and stirred evenly to obtain the second phase;

[0057] (4) Add dimethylaminoethyl methacrylate and 2-vinylpyridine to water of 20 times the total weight, and stir to obtain the third phase;

[0058] (5) Add initiator, chain transfer agent and catalyst to the third phase, polymerize at 40°C for 3 hours, and s...

Embodiment 3

[0070] A kind of preparation method of hyperbranched cationic polymer emulsion, concrete steps are as follows:

[0071] (1) Heat titanium carbonitride in an inert gas containing oxygen to make titanium carbonitride, use acryloyl chloride modified glass fiber powder as a carrier, and carry titanium carbonitride and manganese acetate as active components to make a catalyst ;

[0072] (2) Add N-aminoethylpiperazine and N-isopropylacrylamide to water 10 times the total weight, and stir evenly to obtain the first phase;

[0073] (3) Diacrylate polyethylene glycol ester and methacrylic acid ethyleneoxy polyethylene glycol ester are added to water of 40 times the total weight, and stirred evenly to obtain the second phase;

[0074] (4) Add dimethylaminoethyl methacrylate and 2-vinylpyridine to 10 times the total weight of water, and stir to obtain the third phase;

[0075] (5) Add initiator, chain transfer agent and catalyst to the third phase, polymerize at 40°C for 2 hours, and s...

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PUM

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Abstract

The invention provides a hyperbranched cationic polymer emulsion, and an application thereof in sludge dewatering. A first phase, a second phase and a third phase are prepared in advance, a key catalyst is introduced, an initiator, a chain transfer agent and a catalyst are added to the third phase, a lower temperature polymerization reaction is carried out, the second phase is slowly dropwise added in the polymerization to obtain a hyperbranched polymer system, the first phase is slowly dropwise added to the hyperbranched polymer system, and a high temperature polymerization reaction is carried out to obtain the hyperbranched cationic polymer emulsion. The emulsion is highly branched, forms a three-dimensional network structure, is not prone to entangle between molecules, contains a largenumber of terminal functional groups, and has the advantages of strong chemical reactivity, high molecular weight, high cationicity and good sludge dewatering effect.

Description

technical field [0001] The invention relates to the technical field of sludge dewatering, in particular to a hyperbranched cationic polymer emulsion and its application in sludge dewatering. Background technique [0002] With the development of my country's social economy and industrialization, the production of domestic and industrial sewage continues to increase, and a large amount of sludge will be produced in the process of treating sewage. Sludge usually contains a large amount of toxic and harmful substances, such as bacteria, parasites, heavy metals, etc., as well as a large number of plant nutrients (nitrogen, phosphorus, potassium, etc.), organic matter, etc. that will pollute the water body. Sludge has a special shape, small particles, mostly flocculent and colloidal, low density, high water content and is not easy to dehydrate, poor stability and easy to rot and smell. If it is not treated in time, it will cause serious environmental pollution. [0003] Usually, ...

Claims

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Application Information

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IPC IPC(8): C08F271/02C08F226/06C08F220/54C08F222/20C08F4/26C08F4/02C08F2/38C02F11/147
Inventor 吴卷
Owner 湖北康创科技有限公司
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