METHOD OF EXTRACTION OF MOLYBDENUM AND RHENIUM FROM SULFIDE CONCENTRATES Russian patent published in 1995 - IPC

Abstract RU 2027789 C1

FIELD: hydrometallurgy. SUBSTANCE: concentrate decomposition is carried out in autoclave in the presence of nitric acid and oxygen following by denitration of molybdenum-rhenium-containing solution in autoclave due to reductant properties of the parent concentrate. Nitrogen oxides evolving at denitration were fed into autoclave for decomposition by gravity owing to excessive pressure. Method is used in processing of different molybdenum-containing raw. EFFECT: improved method of extraction. 1 dwg

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RU 2 027 789 C1

Authors

Smirnov I.P.

Chujkina N.I.

Paskhin P.N.

Erokhina O.D.

Dates

1995-01-27Published

1990-04-06Filed