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2 031 734

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C1

(51)

IPC

(21) (22)

Application

5055340/03, 1992-07-22

(22)

Actual filing date

1992-07-22

(45)

Published

1995-03-27

(72)

Inventor

Bel'Kova O.N.Leonov S.B.Kukharev B.F.Stankevich V.K.Klimenko G.R.

(73)

Holder

Irkutskij Institut Organicheskoj Khimii So Ran

METHOD FOR ENRICHMENT OF SCHEELITE-SULFIDE ORES Russian patent published in 1995 - IPC

Abstract RU 2031734 C1

FIELD: enrichment of useful minerals. SUBSTANCE: ground minerals are treated by modifier. Thus prepared pulp is conditioned by sulfhydryl collecting agent. Foaming agent is added, then sulfide minerals are flotated to isolate foamed product and tail fraction. Said tail fraction is treated by oxyhydryl collecting agent, scheelite is flotated to isolate tungsten minerals as foamed product. N-propargyl-2-hydroxy-3/2-vinyloxyethoxy/propyl ammonia bromide is added during conditioning, its mass ratio to mentioned above collecting agent being 1:27-1:160. The process is carried out before sulfhydryl collecting agent is added. EFFECT: improves efficiency of the method. 1 dwg, 2 tbl

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RU 2 031 734 C1

Authors

Bel'Kova O.N.

Leonov S.B.

Kukharev B.F.

Stankevich V.K.

Klimenko G.R.

Dates

1995-03-27—Published

1992-07-22—Filed

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