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2 033 450

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C1

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IPC

(21) (22)

Application

5049312/02, 1992-05-28

(22)

Actual filing date

1992-05-28

(45)

Published

1995-04-20

(72)

Inventor

Rjumin A.A.Krupenko I.N.Beloglazov K.K.Gribkov V.V.

(73)

Holder

Vsesojuznyj Neftjanoj Nauchno-Issledovatel'Skij Geologorazvedochnyj Institut

METHOD OF PRODUCING OF VANADIUM AND IRON OXIDES Russian patent published in 1995 - IPC

Abstract RU 2033450 C1

FIELD: chemical technology. SUBSTANCE: method involves deposition from acid solution by filtration and calcination of precipitate. Precipitation is carried out with potassium ferricyanide at concentration 4.02-4.21 mas. p. per 1 mas. p. vanadium following by clarification of solution for 3-5 h. EFFECT: improved method of oxides producing. 1 tbl

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RU 2 033 450 C1

Authors

Rjumin A.A.

Krupenko I.N.

Beloglazov K.K.

Gribkov V.V.

Dates

1995-04-20—Published

1992-05-28—Filed

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