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2 048 440

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IPC

(21) (22)

Application

5019774/26, 1991-10-28

(22)

Actual filing date

1991-10-28

(45)

Published

1995-11-20

(72)

Inventor

Elesin A.I.Denisova T.N.Bondarev M.S.

(73)

Holder

Elesin Anatolij IvanovichDenisova Tat'Jana NikolaevnaBondarev Mikhail Stanislavovich

METHOD OF PRODUCING HEAVY NONFERROUS METAL SULFIDE Russian patent published in 1995 - IPC

Abstract RU 2048440 C1

FIELD: technology of inorganic chemistry. SUBSTANCE: precipitate obtained by precipitation with alkaline sulfur solution is treated additionally together with mother liquid with alkali, and then the parental metal salt solution is fed to suspension. For complete conversion of elemental sulfur alkali for treatment is taken at the ratio (1.25-0.75):1 to sulfur to be conversed, and 6-13 cycles of sulfidizing treatment were carried out. Method is used for producing nonferrous metal sulfides. EFFECT: improved method of metal sulfide producing. 3 tbl

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RU 2 048 440 C1

Authors

Elesin A.I.

Denisova T.N.

Bondarev M.S.

Dates

1995-11-20—Published

1991-10-28—Filed