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2 060 940

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C1

(51)

IPC

(21) (22)

Application

4947285/26, 1991-05-20

(22)

Actual filing date

1991-05-20

(45)

Published

1996-05-27

(72)

Inventor

Nasyrov G.Z.Nemets N.V.

(73)

Holder

Aktsionernoe Obshchestvo Otkrytogo Tipa Aljuminievo-Magnievyj Institut"

METHOD FOR PROCESSING OF SODA-POTASH SOLUTION Russian patent published in 1996 - IPC

Abstract RU 2060940 C1

FIELD: non-ferrous metallurgy. SUBSTANCE: soda-potash mother solution is evaporated and sodium carbonate is isolated from it. Then sodium sulfate or its mixture with sodium carbonate are added into it. Conversion of sodium sulfate is carried out at 35-40 C till molar portion of potassium hydroxide decreases to 45-50 % of total alkali content. EFFECT: improves efficiency of method. 3 cl, 3 dwg, 1 tbl

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RU 2 060 940 C1

Authors

Nasyrov G.Z.

Nemets N.V.

Dates

1996-05-27—Published

1991-05-20—Filed

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