Novel amphoteric acrylamide polymer flocculant and preparation method thereof

A technology of acrylamide and acrylamide monomers, applied in chemical instruments and methods, flocculation/sedimentation water/sewage treatment, water/sludge/sewage treatment, etc., can solve the problem of long dissolution time, weakened particle adsorption capacity, pH value Sensitivity and other problems, to achieve the effect of significant flocculation effect, short dissolution time and strong adsorption capacity
CN110982012AActive Publication Date: 2020-04-10JIANGXI SCI & TECH NORMAL UNIV
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Applications(China)
Current Assignee / Owner
JIANGXI SCI & TECH NORMAL UNIV
Publication Date
2020-04-10

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Abstract

The invention discloses a novel amphoteric acrylamide polymer flocculant and a preparation method thereof. The novel amphoteric acrylamide polymer flocculant is prepared by ternary polymerization of acrylamide (AM), biquaternary ammonium type cationic functional monomer (AGCm, m = 1-4) comprising different alkyl tail chains (R = (CH2)x-CH3, x = 0-3) and glutamic acid type anionic monomers (AGlun,n = 1-4) with different side chain lengths (R'= (CH2)y, y = 0-3). The prepared novel copolymer of the double-end quaternary ammonium salt cationic functional monomer (AGCm, m = 1-4), the double-end carboxyl-containing anionic monomer (AGlun, n = 1-4) and acrylamide (AM) is short in dissolving time, novel in structure, energy-saving, environment-friendly, efficient and remarkable in flocculation effect. The flocculant has stronger adsorption capacity for negative suspended colloidal particles and organic substances in sewage, the flocculating effect is more remarkable than that of the traditional cationic polyacrylamide, the product economy is good, and the flocculant can be industrially produced.
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Description

technical field

[0001] The invention relates to the technical field of water treatment, in particular to the preparation of a novel acrylamide polymer flocculant containing double-head cationic functional monomers and double-head anionic functional monomers. Background technique

[0002] Polyacrylamide (PAM) and its derivatives have good water solubility and adsorption and flocculation performance due to the rich amide groups and other charged groups in the structure. Environmentally friendly organic flocculants have been widely used in technical fields such as industrial wastewater purification and sludge dehydration treatment. Compared with traditional inorganic flocculants (such as polyaluminum chloride, ferric chloride, etc.), PAM type flocculants have the advantages of more varieties, complete specifications, less dosage, high efficiency and strong processing capacity. And it can play a better effect when used in conjunction with inorganic flocculants.

[0003] Howeve...

Claims

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