METHOD FOR PRODUCING HYDROLYZED POLYACRYLAMIDE Russian patent published in 2024 - IPC C08F8/12 C08F220/56 

Abstract RU 2813762 C1

FIELD: production of hydrolysed polyacrylamide.

SUBSTANCE: invention relates to the production of hydrolysed polyacrylamide in an aqueous solution. A method has been proposed for producing hydrolysed polyacrylamide by sequentially dissolving polyacrylamide 0.007-0.71 wt.%, crystalline hydrate of copper sulphate 0.025-2.495 wt.% and sodium tetrahydride borate 0.008-0.756 wt.% in distilled water with constant stirring followed by keeping at 25°C for 1-24 hours, after which the solution of hydrolysed polyacrylamide is separated by decantation.

EFFECT: production of hydrolysed polyacryamide and the simplification of the method for its production, with the possibility of achieving different degrees of hydrolysis.

1 cl, 2 tbl, 3 ex

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RU 2 813 762 C1

Authors

Novakov Ivan Aleksandrovich

Radchenko Filipp Stanislavovich

Ozerin Aleksandr Sergeevich

Mikhailiuk Alla Evgenevna

Donetskova Liubov Iurevna

Babkin Vladimir Aleksandrovich

Andreev Dmitrii Sergeevich

Titova Evgeniia Stanislavovna

Dates

2024-02-16Published

2023-06-22Filed