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2 006 506

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C1

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IPC

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Application

5056678/02, 1992-07-28

(22)

Actual filing date

1992-07-28

(45)

Published

1994-01-30

(72)

Inventor

Laskorin B.N.Moskvicheva G.I.Zhukova N.G.Baskakov A.N.

(73)

Holder

Vserossijskij Nauchno-Issledovatel'Skij Institut Khimicheskoj Tekhnologii

METHOD OF NOBLE METALS EXTRACTION Russian patent published in 1994 - IPC

Abstract RU 2006506 C1

FIELD: extraction of gold and silver. SUBSTANCE: noble metals are obtained from cyanogen solutions and pulps of complex salt composition at pH 9,5-11,5, at cyanide concentration 1,0-0,1 g/dm by sorption on anion-exchange resin of mixed basicity. Anion-exchange resin on the basis of terpolymer of 2,5-methylvinylpyridine, styrene and divinylbenzene is used asa sorbent in the presence of modifying solvent containing 15-40% quaternary heterocyclic nitrogen. Method is used for extraction of gold and silver after cyanide leaching of raw. EFFECT: enhanced sorption capacity and selectivity. 2 tbl

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RU 2 006 506 C1

Authors

Laskorin B.N.

Moskvicheva G.I.

Zhukova N.G.

Baskakov A.N.

Dates

1994-01-30—Published

1992-07-28—Filed

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