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2 191 850

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Application

2001120637/02, 2001-07-23

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Start date

2001-07-23

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Actual filing date

2001-07-23

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Published

2002-10-27

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Inventor

Khagazheev D.T.Miroevskij G.P.Rjabko A.G.Rozenberg Zh.I.Demidov K.A.Golov A.N.Khomchenko O.A.Sadovskaja G.I.

(73)

Holder

Otkrytoe Aktsionernoe Obshchestvo Gorno-Metallurgicheskaja Kompanija"

METHOD FOR MAKING CATHODE NICKEL Russian patent published in 2002 - IPC

Abstract RU 2191850 C1

FIELD: metallurgy, namely processes for making cathode nickel of copper - nickel sulfide raw material. SUBSTANCE: method comprises steps of flotation separation of converter matte by nickel and copper concentrates; oxidation calcination of nickel concentrate; reducing calcined product and diluting it; electrically extracting nickel, further processing of its remainder after dilution; performing electric extraction while using chloride solution obtained by dilution by means of chlorine of reduced calcined product in which content of oxidized metals is no more than multiplied by 1.5 times sum of iron and cobalt; treating non-soluble remainder containing noble metals with use of hydrochloric acid. EFFECT: lowered consumption of reagents and energy, simplified process. 1 dwg, 1 tbl

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RU 2 191 850 C1

Authors

Khagazheev D.T.

Miroevskij G.P.

Rjabko A.G.

Rozenberg Zh.I.

Demidov K.A.

Golov A.N.

Khomchenko O.A.

Sadovskaja G.I.

Dates

2002-10-27—Published

2001-07-23—Filed