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2 082 796

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Application

95100313/02, 1995-01-11

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Actual filing date

1995-01-11

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Published

1997-06-27

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Inventor

Drozdov S.V.Patrushev V.V.Kholmogorov A.G.Pashkov G.L.Grigor'Eva N.A.Mikhlina E.V.

(73)

Holder

Institut Khimii I Khimiko-Metallurgicheskikh Protsessov So Ran

METHOD OF OPENING SULFIDE MOLYBDENUM CONCENTRATES AND RECOVERY OF MANGANESE FROM PYROLUSITE Russian patent published in 1997 - IPC

Abstract RU 2082796 C1

FIELD: chemical industry. SUBSTANCE: invention describes method of opening molybdenum and recovery of manganese from pyrolysite by combined treatment thereof in sulfuric acid solutions. Treatment is carried out in autoclave at 150-200 C and molar ratio of 1:4-8 for 2-6 hr in one stage at initial sulfuric acid concentration of 10-25%. EFFECT: more efficient opening method. 1 tbl

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RU 2 082 796 C1

Authors

Drozdov S.V.

Patrushev V.V.

Kholmogorov A.G.

Pashkov G.L.

Grigor'Eva N.A.

Mikhlina E.V.

Dates

1997-06-27—Published

1995-01-11—Filed

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