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2 022 940

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C1

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IPC

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Application

4903503/26, 1990-12-10

(22)

Actual filing date

1990-12-10

(45)

Published

1994-11-15

(72)

Inventor

Laskorin B.N.Smol'Nyj V.M.Odintsov V.A.Grechishnikov L.P.Fomenkov V.G.Denisov A.K.Utkin V.V.Loginov N.D.Sezemin V.A.Pankratov Ju.V.Babich I.I.

(73)

Holder

Vserossijskij Nauchno-Issledovatel'Skij Institut Khimicheskoj Tekhnologii

METHOD OF STRONTIUM CONCENTRATE PRODUCING Russian patent published in 1994 - IPC

Abstract RU 2022940 C1

FIELD: chemical technology. SUBSTANCE: strontium concentrate is prepared by decomposition of apatite with nitric acid, and nitric acid extract is prepared. The latter is kept at 40-60 C, strontium concentrate precipitate is separated from the liquid phase, and the liquid phase is cooled up to 25-30 C, and the precipitate of strontium concentrate is isolated. Method is used for phosphate raw reprocessing. EFFECT: improved method of strontium concentrate preparing. 1 tbl

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RU 2 022 940 C1

Authors

Laskorin B.N.

Smol'Nyj V.M.

Odintsov V.A.

Grechishnikov L.P.

Fomenkov V.G.

Denisov A.K.

Utkin V.V.

Loginov N.D.

Sezemin V.A.

Pankratov Ju.V.

Babich I.I.

Dates

1994-11-15—Published

1990-12-10—Filed

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