COAGULANT FOR PURIFYING SEWAGE FROM PAINT MATERIALS Russian patent published in 1999 - IPC

Abstract RU 2139254 C1

FIELD: automobile and agriculture machine building, and chemical industries. SUBSTANCE: coagulant comprises zinc phosphate slurry, triethanol amine, polyacrylamide, hydrochloric and water, ratio of components being as follows, wt %: zinc phosphate slurry, 15-20; hydrochloric acid, 5-15; boric acid, 0.3-0.5; triethanol amine, 1-3; polyacrylamide, 1; and water, the balance. EFFECT: lower toxicity and reduced cost price of coagulant. 2 tbl

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RU 2 139 254 C1

Authors

Chekryzheva T.I.

Dates

1999-10-10—Published

1998-02-18—Filed