PROCESS FOR PREPARING CRYSTALLINE SODIUM ACETATE FROM CHEMICAL PRODUCT WASTE Russian patent published in 1994 - IPC

Abstract RU 2024486 C1

FIELD: lower carboxylic acid salts. SUBSTANCE: liquid sewage and gas discharges containing acetic acid impurities in the production of triacetine are neutralized with alkali; the resulting aqueous solutions containing 5-28% sodium acetate are evaporated at 80 - 95 C and at a residual pressure of 0,5-0,8 kg/cm2. The evaporated solution is cooled and crystallized, the salt is filtered off and the resulting sodium acetate is dried. EFFECT: simplified process.

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RU 2 024 486 C1

Authors

Shishkin V.A.

Bastrakov N.I.

Fedotov P.I.

Ankudimov V.A.

Lapin V.M.

Dates

1994-12-15Published

1992-10-06Filed