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2 024 433

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IPC

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Application

93052072/26, 1993-11-16

(22)

Actual filing date

1993-11-16

(45)

Published

1994-12-15

(72)

Inventor

Aksenov A.A.Boldyrev V.K.Denisov A.K.Pankratov Ju.V.Tolkachev V.A.

(73)

Holder

Sovmestnoe Predprijatie

METHOD OF PURIFICATION OF STRONTIUM NITRATE FROM BARIUM IMPURITIES IN TECHNOLOGY OF STRONTIUM CARBONATE PRODUCTION Russian patent published in 1994 - IPC

Abstract RU 2024433 C1

FIELD: chemical technology. SUBSTANCE: method involves dissolving of crystals of strontium and barium nitrate in vertical flow with countercurrent feeding of nitric acid solution at concentration 170-180 g/l from bottom at specific consumption 4,5-5,5 m3/m2·h. EFFECT: decreased strontium loss. 1 tbl, 2 dwg

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RU 2 024 433 C1

Authors

Aksenov A.A.

Boldyrev V.K.

Denisov A.K.

Pankratov Ju.V.

Tolkachev V.A.

Dates

1994-12-15—Published

1993-11-16—Filed

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