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2 094 510

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C1

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IPC

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Application

95115054/02, 1995-09-01

(22)

Actual filing date

1995-09-01

(45)

Published

1997-10-27

(72)

Inventor

Eliseev E.I.Vol'Khin A.I.Evgenov A.M.Bobov S.S.Kolesov G.N.

(73)

Holder

Aktsionernoe Obshchestvo Zakrytogo Tipa Medeehlektrolitnyj Zavod"

METHOD FOR REFINING OF COPPER Russian patent published in 1997 - IPC

Abstract RU 2094510 C1

FIELD: hydrometallurgy of non-ferrous metals; production of commercial copper. SUBSTANCE: copper melt is treated by salt of nitric acid, potassium, sodium and calcium nitrates being preferable. Ratio of active oxygen in said salts to copper being 0.03-0.56 %. EFFECT: improved efficiency. 3 cl, 1 tbl

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RU 2 094 510 C1

Authors

Eliseev E.I.

Vol'Khin A.I.

Evgenov A.M.

Bobov S.S.

Kolesov G.N.

Dates

1997-10-27—Published

1995-09-01—Filed

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