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2 119 962

(13)

C1

(51)

IPC

(21) (22)

Application

97103791/02, 1997-03-12

(22)

Actual filing date

1997-03-12

(45)

Published

1998-10-10

(72)

Inventor

Zhizhaev A.M.

(73)

Holder

Institut Khimii I Khimiko-Metallurgicheskikh Protsessov So Ran

METHOD OF PROCESSING SULFIDE POLYMETALLIC MATERIALS Russian patent published in 1998 - IPC

Abstract RU 2119962 C1

FIELD: chemical technology, inorganic chemistry. SUBSTANCE: invention relates to a method of oxidation of iron sulfides in an aqueous pulp and isolation of sulfur-containing concentrate by flotation. Oxidation is carried out with air oxygen under natural storage conditions. Material as an aqueous pulp is subjected for mechanical treatment (mechanical activation) at intensity of energy feeding 1.4-1.7 kJ/s, not less. EFFECT: simplified method, decreased cost and consumption of process. 1 cl, 1 ex

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RU 2 119 962 C1

Authors

Zhizhaev A.M.

Dates

1998-10-10—Published

1997-03-12—Filed

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