Environment-friendly cationic polyacrylamide material and preparation method thereof

A technology of polyacrylamide and cation, which is applied in the field of environment-friendly cationic polyacrylamide material and its preparation, which can solve the problems of poor sewage treatment effect, low relative molecular weight, and large dosage of chemicals, so as to achieve good sewage treatment effect and improve adsorption The bridging ability, BOD value and COD value decrease greatly

Pending Publication Date: 2022-05-27
海南扬航实业有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Most of the products are in the form of solid powder, and there are disadvantages such as low relative molecular weight and poor water solubility, which lead to poor sewage treatment effect and relatively large dosage of chemicals

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0029] A preparation method of an environment-friendly cationic polyacrylamide material, comprising the following steps:

[0030] (1) adding dimethyl diallyl ammonium chloride, polyacrylamide and disodium ethylenediaminetetraacetate into the batching tank, adding water and stirring and mixing fully to make mixed solution A;

[0031] The mass ratio of the dimethyl diallyl ammonium chloride and polyacrylamide is 2.0:1; the addition amount of the disodium EDTA is dimethyl diallyl ammonium chloride and polypropylene 0.01% of the total mass of the amide; the total mass of the dimethyl diallyl ammonium chloride and polyacrylamide and the mass-volume ratio of the mixed solution A, kg / L, is 35:1;

[0032] (2) The mixed solution A is placed in a polymerization kettle, and an initiator is added under nitrogen protection, and the initiator is anthraquinone and 2,4,6-trimethylbenzoyl diphenyl having a mass ratio of 2:5 base phosphine oxide, the addition amount of the initiator is 0.02% o...

Embodiment 2

[0037] A preparation method of an environment-friendly cationic polyacrylamide material, comprising the following steps:

[0038] (1) adding dimethyl diallyl ammonium chloride, polyacrylamide and disodium ethylenediaminetetraacetate into the batching tank, adding water and stirring and mixing fully to make mixed solution A;

[0039] The mass ratio of the dimethyl diallyl ammonium chloride and polyacrylamide is 2.1:1; the addition amount of the disodium EDTA is dimethyl diallyl ammonium chloride and polypropylene 0.02% of the total mass of the amide; the total mass of the dimethyl diallyl ammonium chloride and polyacrylamide and the mass-volume ratio of the mixed solution A, kg / L, are 25:1;

[0040] (2) The mixed solution A is placed in the polymerization kettle, and an initiator is added under nitrogen protection, and the initiator is anthraquinone and 2,4,6-trimethylbenzoyl diphenyl having a mass ratio of 4:7 base phosphine oxide, the addition amount of the initiator is 0.02...

Embodiment 3

[0045] A preparation method of an environment-friendly cationic polyacrylamide material, comprising the following steps:

[0046] (1) adding dimethyl diallyl ammonium chloride, polyacrylamide and disodium ethylenediaminetetraacetate into the batching tank, adding water and stirring and mixing fully to make mixed solution A;

[0047] The mass ratio of the dimethyl diallyl ammonium chloride and polyacrylamide is 2.1:1; the addition amount of the disodium EDTA is dimethyl diallyl ammonium chloride and polypropylene 0.012% of the total mass of the amide; the total mass of the dimethyl diallyl ammonium chloride and polyacrylamide and the mass-volume ratio of the mixed solution A, kg / L, is 30:1;

[0048] (2) The mixed solution A is placed in a polymerization kettle, and an initiator is added under nitrogen protection, and the initiator is anthraquinone and 2,4,6-trimethylbenzoyl diphenyl having a mass ratio of 2.3:6.7 base phosphine oxide, the addition amount of the initiator is 0....

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PUM

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Abstract

The invention provides an environment-friendly cationic polyacrylamide material and a preparation method thereof, and the preparation method comprises the following steps: (1) adding dimethyl diallyl ammonium chloride, polyacrylamide and disodium ethylene diamine tetraacetate into a batching tank, adding water, and mixing to prepare a mixed solution A; (2) the mixed solution A is placed in a polymerization kettle, an initiator is added under nitrogen protection, the initiator is anthraquinone and 2, 4, 6-trimethylbenzoyl diphenyl phosphine oxide with the mass ratio of 2-4: 5-7, polymerization reaction is conducted, and a product is obtained; (3) after the polymerization reaction, cutting by adopting a granulator to obtain a cut material; (4) drying in a box dryer after cutting, and collecting the dried material; and (5) grinding and screening to obtain a target product. The cationic polyacrylamide material prepared by the invention is good in water solubility, can obtain a good sewage treatment effect under the condition of using a small amount of medicament, and is not only high in sewage treatment capacity, but also environment-friendly.

Description

technical field [0001] The invention relates to the field of sewage treatment materials, in particular to an environment-friendly cationic polyacrylamide material and a preparation method thereof. Background technique [0002] Polyacrylamide is abbreviated as PAM, and its structural formula is [-CH 2 -CH(CONH 2 )] n -, the molecular weight is between 4 million and 20 million. There are two main commercial forms of polyacrylamide, one is white or slightly yellow powder in appearance, easily soluble in water, and the speed is very slow. Increasing the temperature can slightly promote the dissolution, but the temperature should not exceed 50 ° C to prevent the occurrence of Molecular degradation, insoluble in organic solvents. The other is colorless viscous colloid, and polyacrylamide emulsion (developed by Shanghai Institute of Synthetic Resins). Neutral and non-toxic. Polyacrylamide is stored in a cool, ventilated and dry warehouse, protected from moisture, light and he...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C08F265/10C08F226/02C08F2/48C02F1/56
CPCC08F265/10C08F2/48C02F1/56C08F226/02Y02W10/37
Inventor 李晓涛李晓朋
Owner 海南扬航实业有限公司
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