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Multi-polymerization preparation method of flocculant

A flocculant and multi-component technology, applied in the field of multi-component polymerization preparation of flocculants, can solve the problems of narrow application area, unsatisfactory, single monomer structure, etc., and achieve good stability, strong adsorption and capture ability, and high broad spectrum. Effect

Active Publication Date: 2013-09-04
东营市诺尔化工有限责任公司 +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

At present, polyacrylamide, a polymer flocculant commonly used in the market, adopts a relatively single monomer structure, and the product has a narrow application area, which cannot meet the requirements of different water quality in different industries.

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0010] Raw material parts by weight are:

[0011] Acrylamide 198

[0012] Acryloyloxyethyltrimethylammonium chloride 120

[0013] Methacryloyloxyethyltrimethylammonium chloride 30

[0014] Sodium 2-acryloyl-2-methylpropanesulfonate 20

[0015] Deionized water 624

[0016] Potassium persulfate 0.06

[0017] Sodium bisulfite 0.05

[0018] The specific preparation process is:

[0019] (1) Add the aqueous solution of various monomers into the reactor (the monomers are mixed with deionized water to form a solution, or the monomers are mixed and then added with deionized water to form a solution), and nitrogen gas is used to remove oxygen for 30 minutes ;

[0020] (2) Adjust the pH value to 4-5 with acetic acid, add an initiator and polymerize at 2°C for 5 hours;

[0021] (3) After the reaction, take out the jelly, granulate the polymer, and dry the granule in an oven at 75°C;

[0022] (4) After 2 hours, take out the dried colloidal particles and pulverize them to obtain th...

Embodiment 2

[0024] Raw material parts by weight are:

[0025] Acrylamide 100

[0026] N,N-Dimethacrylamide 60

[0027] Acryloyloxyethyltrimethylammonium chloride 100

[0028] Methacryloyloxyethyltrimethylammonium chloride 50

[0029] Sodium 2-acryloyl-2-methylpropanesulfonate 15

[0030] Sodium acrylate 10

[0031] Deionized water 700

[0032] Potassium persulfate 0.05

[0033] Sodium bisulfite 0.04

[0034] V50 0.02

[0035] The specific preparation process is:

[0036] (1) Add the aqueous solution of various monomers into the reactor (the monomers are mixed with deionized water to form a solution, or the monomers are mixed and then added with deionized water to form a solution), and nitrogen gas is used to remove oxygen for 30 minutes ;

[0037] (2) Adjust the pH value to 4-5 with acetic acid, add an initiator and polymerize at 4°C for 1 hour;

[0038] (3) After the reaction, take out the jelly, granulate the polymer, and dry the granule in an oven at 75°C;

[0039] (4) Afte...

Embodiment 3

[0041] Raw material parts by weight are:

[0042] Acrylamide 120

[0043] Acryloyloxyethyltrimethylammonium chloride 120

[0044] Methacryloyloxyethyltrimethylammonium chloride 30

[0045] Sodium 2-acryloyl-2-methylpropanesulfonate 20

[0046] Sodium acrylate 10

[0047] Acryloylmorpholine 10

[0048] Deionized water 600

[0049] Ammonium persulfate 0.05

[0050] Sodium bisulfite 0.04

[0051] V50 0.03

[0052] The specific preparation process is:

[0053] (1) Add various monomer aqueous solutions into the reactor (each monomer is mixed with deionized water to make a solution, or the monomers are mixed and then added with deionized water to make a solution), and nitrogen gas is used to remove oxygen for 30 minutes;

[0054] (2) Adjust the pH value to 4-5 with acetic acid, add an initiator and polymerize at 5°C for 2.5 hours;

[0055] (3) After the reaction, take out the jelly, granulate the polymer, and dry the granule in an oven at 75°C;

[0056] (4) After 2 hours,...

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Abstract

The invention relates to the field of water-soluble polymer chemical auxiliary agents, and particularly relates to a multi-polymerization preparation method of a flocculant. The flocculant is prepared from the following raw materials in parts by weight:120-200 parts of non-ionic monomer, 10-40 parts of anionic monomer, 80-170 parts of cationic monomer, 600-700 parts of deionized water, and 0.08-0.12 parts of initiator. The preparation process comprises the following steps of: adding the non-ionic monomer, the anionic monomer, the cationic monomer and deionized water to a reactor, introducing nitrogen to remove oxygen, adjusting the pH to 4-5, adding the initiator and polymerizing at 2-5 DEG C; and after reaction is finished, granulating the polymer, drying colloidal particles at 70-80 DEG C, and finally crushing the colloidal particles to obtain the product. The product has higher-density charged groups, stronger adsorption capturing capability to colloid and suspended particles in water, and high-salt, acid and base resistance; and compared with other flocculants, the flocculant has the characteristics of good broad spectrum property, good stability and good flocculation effect.

Description

technical field [0001] The invention relates to the field of water-soluble polymer chemical additives, in particular to a multi-component polymerization preparation method of a flocculant. Background technique [0002] In today's water treatment industry, the water quality is becoming more and more complex, and the requirements for water treatment chemicals are also increasing. At present, polyacrylamide, a polymer flocculant commonly used in the market, adopts a relatively single monomer structure, and the product has a narrow application area, which cannot meet the requirements of different water quality in different industries. Contents of the invention [0003] The purpose of the invention is to aim at the defects of the prior art, to provide a simple process for the preparation of multi-polymerization of flocculants, the product has good solubility, stronger adaptability to water purification equipment and different water quality, high broad-spectrum, flocculation Th...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C08F220/56C08F220/34C08F216/36C08F220/06C08F226/06C02F1/56
Inventor 荣敏杰唐建许永升付欣
Owner 东营市诺尔化工有限责任公司
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