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2 136 595

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IPC

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Application

94037751/25, 1994-10-06

(22)

Actual filing date

1994-10-06

(45)

Published

1999-09-10

(72)

Inventor

Bitner A.A.

(73)

Holder

Aktsionernoe Obshchestvo Otkrytogo Tipa Aljuminievo-Magnievyj Institut"

METHOD OF RECOVERY OF SODA AND POTASSIUM SULFATE FROM SODA-POTASH NEPHELINE PROCESSING SOLUTIONS Russian patent published in 1999 - IPC

Abstract RU 2136595 C1

FIELD: metallurgy of non-ferrous metals, more particularly production of alumina, technology of inorganic matter, namely production of sodium carbonate and potassium sulfate. SUBSTANCE: potassium sulfate is prepared from soda-potash solutions of alumina production by treating potassium sulfate accumulating bicarbonate with original soda-potash solution in amount of bicarbonate within 500- 735 g/cubic dm, and recovered potassium sulfate is separated. EFFECT: high degree recovery of purified potassium sulfate and purified sodium carbonate being recovered. 2 cl, 1 tbl

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RU 2 136 595 C1

Authors

Bitner A.A.

Dates

1999-09-10—Published

1994-10-06—Filed

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