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IPC

(21) (22)

Application

4297711/02, 1987-08-19

(22)

Actual filing date

1987-08-19

(45)

Published

1994-04-15

(72)

Inventor

Evlash Ju.N.Dmitriev V.G.Blejle O.L.Abramov N.P.Lokhov B.A.Lindt V.A.Gol'D A.K.Shirshov Ju.A.

PROCESS FOR TREATING PULP Russian patent published in 1994 - IPC

Abstract SU 1476920 A1

FIELD: nonferrous metallurgy. SUBSTANCE: the pulp comprising nonferrous metals is neutralized with lime milk or lime pulp to a redox potential of +(300-150) mv across a platinum electrode relative to a reference chlorosilver electrode, heavy nonferrous sulfide metals are then deposited by a lime sulfur decoction pretreated with potassium xanthogenate, in an amount of 0.3 1.5 g/l. EFFECT: greater recovery of nonferrous metals. 2 tbl

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SU 1 476 920 A1

Authors

Evlash Ju.N.

Dmitriev V.G.

Blejle O.L.

Abramov N.P.

Lokhov B.A.

Lindt V.A.

Gol'D A.K.

Shirshov Ju.A.

Dates

1994-04-15—Published

1987-08-19—Filed