Unlock instant, AI-driven research and patent intelligence for your innovation.

Multi-polymerization preparation method of flocculant

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

Active Publication Date: 2012-06-27
东营市诺尔化工有限责任公司 +1
View PDF1 Cites 18 Cited by
  • 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

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
View more

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,...

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More

PUM

No PUM Login to View More

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 DEGC, 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

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More

Application Information

Patent Timeline
no application Login to View More
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