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2 039 109

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C1

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IPC

(21) (22)

Application

5009673/02, 1991-10-09

(22)

Actual filing date

1991-10-09

(45)

Published

1995-07-09

(72)

Inventor

Shchelkin A.A.Baranov V.M.Bubnov V.K.Jakhno Ja.I.

(73)

Holder

Proizvodstvennoe Ob"Edinenie Gorno-Khimicheskij Kombinat"

METHOD FOR RECOVERING MANGANESE FROM ORES AND CONCENTRATES Russian patent published in 1995 - IPC

Abstract RU 2039109 C1

FIELD: recovering manganese from ores. SUBSTANCE: leaching is made using ammonia as reducing agent for sulfite/bisulfite solutions. Ammonia is a product of trapping gases of sulfuric acid production containing 0.51 1.52 mol/l sulfur dioxide at Ph ≅ 3,0. EFFECT: leaching manganese concentrates by sulfuric acid solution in the presence of reducing agent. 1 tbl

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RU 2 039 109 C1

Authors

Shchelkin A.A.

Baranov V.M.

Bubnov V.K.

Jakhno Ja.I.

Dates

1995-07-09—Published

1991-10-09—Filed

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