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SU

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1 832 736

(13)

A1

(51)

IPC

(21) (22)

Application

4822693/02, 1990-05-03

(22)

Actual filing date

1990-05-03

(45)

Published

1996-07-27

(72)

Inventor

Kolpakov S.V.Mizin V.G.Sirina T.P.Nesterov Ju.V.Cherkasov V.K.

METHOD OF PROCESSING MANGANESE ORES Russian patent published in 1996 - IPC

Abstract SU 1832736 A1

FIELD: mining industry. SUBSTANCE: invention relates to a method wherein ground industrial product is leached with hydrochloric acid in presence of ferrous compounds, kept for a while under stirring followed by filtering off the pulp and isolation manganese concentrate from solution. In order to increase manganese isolation and reduce phosphorus content in concentrate to a value not higher than 0.015% when processing high-phosphorus ores, and also to reduce toxic emanation, leaching is carried out by way of feeding concentrated hydrochloric acid into aqueous suspension of industrial product with velocity 0.8-2 l/h per 1 kg of industrial product to pH 2.0-2.6, after which the pH of pulp is adjusted to 2.9-3.2. EFFECT: enhanced efficiency of process.

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SU 1 832 736 A1

Authors

Kolpakov S.V.

Mizin V.G.

Sirina T.P.

Nesterov Ju.V.

Cherkasov V.K.

Dates

1996-07-27—Published

1990-05-03—Filed

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