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IPC

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Application

98123929/02, 1998-12-30

(24)

Start date

1998-12-30

(22)

Actual filing date

1998-12-30

(45)

Published

2000-06-27

(72)

Inventor

Teljakov N.M.Fedorov I.A.

(73)

Holder

Sankt-Peterburgskij Gosudarstvennyj Gornyj Institut Im. G.V. Plekhanova Universitet)

METHOD OF PROCESSING MANGANESE CONCRETIONS Russian patent published in 2000 - IPC

Abstract RU 2151813 C1

FIELD: nonferrous metallurgy. SUBSTANCE: processing of manganese concretions in order to isolate cobalt, copper, nickel, and manganese consists in adding 10-15% of pyrite to ground concretions, after which mixture is subjected to baking with sulfur dioxide-containing air blowing at 450-650 C for 1.0-5.0 hr followed by leaching in presence of sulfur dioxide and separation of pulp. Method shortens pulp settling time by a factor of 4.3. EFFECT: simplified technology, reduced expenses, and decreased operation areas. 1 tbl, 2 ex

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RU 2 151 813 C1

Authors

Teljakov N.M.

Fedorov I.A.

Dates

2000-06-27—Published

1998-12-30—Filed

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