METHOD OF POTASSIUM SILICOFLUORIDE PRODUCING Russian patent published in 1997 - IPC

Abstract RU 2095311 C1

FIELD: chemical technology, inorganic chemistry. SUBSTANCE: method involves interaction of fluoride-chloride solutions with silicofluoride-containing waste at simultaneous increase of pulp settling parameters. Silicofluoride waste from zirconium production is treated with fluosilicic acid at 60-80 C for 1.5-2.0 h followed by treatment with fluoride-chloride solution - waste of zirconium production up to pH = 2-4. Invention can be used for producing potassium silicofluoride and used in technology of silicofluoride compounds producing and sewage treatment from fluoride. EFFECT: improved method of producing, improved properties, decreased potassium chloride consumption. 2 cl

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RU 2 095 311 C1

Authors

Baluev V.A.

Butja E.L.

Dorokhov I.T.

Kunaev N.A.

Kreknina N.S.

Cheremnykh G.S.

Dates

1997-11-10—Published

1995-08-01—Filed