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1 769 543

(13)

A1

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IPC

(21) (22)

Application

4870083/02, 1990-09-26

(22)

Actual filing date

1990-09-26

(45)

Published

1994-01-30

(72)

Inventor

Romanchuk A.I.Ivanovskaja V.P.Maniaf A.B.

METHOD FOR FERRUM-MANGANESE GENERATION PROCESSING Russian patent published in 1994 - IPC

Abstract SU 1769543 A1

FIELD: ferrous metallurgy. SUBSTANCE: method involves grinding and leaching of copper, nickel, cobalt and manganese. The latter process is carried out with the help of gas containing sulfurous anhydride till pH of pulp is 4.5-3.6 and till ferrum content in liquid pulp phase is 0.01-2.0 g/l. Then sulfuric acid is added into pulp till pH is 1.5-2.5 and is mixed within 0.5-3.0 h at 60-100 C. EFFECT: improves efficiency of the method. 1 tbl

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SU 1 769 543 A1

Authors

Romanchuk A.I.

Ivanovskaja V.P.

Maniaf A.B.

Dates

1994-01-30—Published

1990-09-26—Filed

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