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2 031 733

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C1

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IPC

(21) (22)

Application

5050110/03, 1992-06-30

(22)

Actual filing date

1992-06-30

(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 2031733 C1

FIELD: enrichment of useful minerals. SUBSTANCE: ground ore is treated by modifiers and is conditioned with sulfhydryl collecting agent. N,N-bis-(2-oxyethyl)-3-aminopropine-1 is added before said collecting agent being used, their mass ratio being 1;80-1:160. Then foaming agent is added. Sulfide minerals are flotated to isolate foamed product and tail fraction. Said tail fraction is treated by oxyhydryl collecting agent and scheelite is flotated to isolate tungsten minerals as foamed product. EFFECT: improves efficiency of the method. 1 dwg, 2 tbl

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RU 2 031 733 C1

Authors

Bel'Kova O.N.

Leonov S.B.

Kukharev B.F.

Stankevich V.K.

Klimenko G.R.

Dates

1995-03-27—Published

1992-06-30—Filed

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