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2 057 071

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Application

93016631/26, 1993-03-31

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Actual filing date

1993-03-31

(45)

Published

1996-03-27

(72)

Inventor

Troshkina Irina Dmitrievna[Ru]Majboroda Andrej Borisovich[Ru]Malykhin Viktor Fedorovich[Kz]Chekmarev Aleksandr Mikhajlovich[Ru]Obruchnikov Andrej Vladimirovich[Ru]

(73)

Holder

Moskovskij Khimiko-Tekhnologicheskij Institut Im.D.I.Mendeleeva

METHOD FOR RECOVERY OF RHENIUM, OSMIUM AND ARSENIC RHENIUM CONTAINING WASH SULFURIC ACID Russian patent published in 1996 - IPC

Abstract RU 2057071 C1

FIELD: hydrometallurgy. SUBSTANCE: prior to extraction of osmium, arsenic and rhenium by tertiary amines, components are subjected to oxidation to achieve redox potential of 900-1200 Mv, then, initial wash sulfuric acid or iron sulfite, sodium sulfate or formaldehyde is added to attain the redox potential value up to 750-820 mV. EFFECT: higher efficiency. 2 cl

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RU 2 057 071 C1

Authors

Troshkina Irina Dmitrievna[Ru]

Majboroda Andrej Borisovich[Ru]

Malykhin Viktor Fedorovich[Kz]

Chekmarev Aleksandr Mikhajlovich[Ru]

Obruchnikov Andrej Vladimirovich[Ru]

Dates

1996-03-27—Published

1993-03-31—Filed

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