Quaternary non-phosphorus aggregate type corrosion and scale inhibitor PIAAM and preparation method thereof

A corrosion and scale inhibitor, a polymerization type technology, applied in the chemical field, can solve the problems of maleic anhydride being difficult to biodegrade, environmental pollution, etc., and achieve good economic and social benefits, good environmental benefits, and the effect of inhibiting corrosion.
CN103265125BInactive Publication Date: 2014-11-05NANJING FORESTRY UNIV
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Patents(China)
Current Assignee / Owner
NANJING FORESTRY UNIV
Publication Date
2014-11-05
Estimated Expiration
Not applicable · inactive patent

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Abstract

The invention discloses a quaternary non-phosphorus aggregate type corrosion and scale inhibitor PIAAM and a preparation method thereof. The corrosion and scale inhibitor PIAAM is composed of itaconic acid, acrylic acid, 2-acrylamide-2-methyl propanesulfonic acid and methyl methacrylate, sodium persulphate, isopropyl alcohol and water. The corrosion and scale inhibitor PIAAM contains no phosphorous element, meets environmental protection requirement, is excellent in scale inhibition performance, has good iron oxide dispersity and also has the characteristics of corrosion inhibition, high temperature resistance, high alkali resistance and stable molecular structure, and discharge of 'waste water, waste gas and waste residue' is not caused in the whole preparation process. The quaternary non-phosphorus aggregate type corrosion and scale inhibitor product PIAAM is simple in process when being used for treating circulating cooling water, dosage is low, cost is low, and effect is good, so that the quaternary non-phosphorus aggregate type corrosion and scale inhibitor PIAAM has better economic benefit and social benefit.
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Description

technical field

[0001] The invention belongs to the field of chemical industry, and specifically relates to a quaternary phosphorus-free polymeric corrosion and scale inhibitor PIAAM used in industrial circulating cooling water systems and a preparation method thereof. Background technique

[0002] Polymer corrosion and scale inhibitors are a new class of pollution-free industrial water treatment agents developed in the 1980s. In polymer corrosion and scale inhibitors, carboxyl and phosphono groups are active groups for inhibiting calcium carbonate scale; carboxyl and polyoxyethylene groups are active groups for inhibiting calcium phosphate scale; ester groups, hydroxyl groups, sulfonic acid groups, amides The phosphonocarboxylic acid group is an active group that prevents polymer aggregation; the phosphonocarboxylic acid chelates with metal ions and is adsorbed on the metal surface to inhibit corrosion; the phosphonocarboxylic acid is not easily hydrolyzed and has scale inh...

Claims

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