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2 044 079

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IPC

(21) (22)

Application

5037368/02, 1992-02-25

(22)

Actual filing date

1992-02-25

(45)

Published

1995-09-20

(72)

Inventor

Ehnns I.I.Sycheva E.A.Edakina L.A.Bykov R.A.Prokhodov V.S.Kononov V.N.Kakaulina M.P.

(73)

Holder

Vsesojuznyj Nauchno-Issledovatel'Skij Gorno-Metallurgicheskij Institut Tsvetnykh Metallov

POLYMETAL ORES BENEFICIATION TAILINGS PROCESSING COMBINE METHOD Russian patent published in 1995 - IPC

Abstract RU 2044079 C1

FIELD: nonferrous metallurgy. SUBSTANCE: polymetal ores tailings process is exercised using chloride lixiviation with acidulous solution, that has 100 300 g/l chloride sodium, till final value pH is 1,5 2.5. Cake, produced during lixiviation, is floated off with production of pyritic concentrate and dump tailings. Hydroxides of metals are settled in collective product from lixiviation solution. Then metals are separated wit production of selective products. EFFECT: increased efficiency. 4 tbl

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RU 2 044 079 C1

Authors

Ehnns I.I.

Sycheva E.A.

Edakina L.A.

Bykov R.A.

Prokhodov V.S.

Kononov V.N.

Kakaulina M.P.

Dates

1995-09-20—Published

1992-02-25—Filed