METHOD OF PRODUCING CHEMICALLY PRECIPITATED CHALK Russian patent published in 1995 - IPC

Abstract RU 2051101 C1

FIELD: production of inorganic materials. SUBSTANCE: calcium substance is treated with soda solution containing 30-60 g/l Na₂O at 80-100 C in the presence of carbon dioxide. After chalk suspension separation precipitate is washed with water quantity of which is equal to the moisture content in precipitate. EFFECT: sewage elimination, enhanced carbonization of lime suspension with gaseous mixtures. 1 dwg, 1 tbl

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RU 2 051 101 C1

Authors

Ter-Arakeljan K.A.

Tatevosjan A.V.

Finkel'Shtejn B.I.

Oganjan R.S.

Dates

1995-12-27—Published

1992-02-17—Filed