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2 568 539

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IPC

C22B11/00(2006-01-01)

C22B3/26(2006-01-01)

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Application

2014111436/02, 2014-03-25

(24)

Start date

2014-03-25

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Actual filing date

2014-03-25

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Published

2015-11-20

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Inventor

Kruglov Sergej NikolaevichKruglova Tat'Jana Pavlovna

(73)

Holder

Kruglov Sergej NikolaevichKruglova Tat'Jana Pavlovna

GOLD EXTRACTION FROM CHLORINE-BEARING SOLUTIONS Russian patent published in 2015 - IPC C22B11/00 C22B3/26 

Abstract RU 2568539 C2

FIELD: metallurgy.

SUBSTANCE: invention relates to gold extraction from the solutions of hydrochlorination of gold-bearing ores and concentrates. Gold is extracted in anionic form from chlorine-bearing solutions by means of extraction by stable emulsion of aqueous solution of water-soluble sulphite in sulphur-bearing crude.

EFFECT: lower gold extraction costs due to increased gold concentration, replacement of expensive extracting agents by low-cost sulphur-bearing crude and combination of processes.

3 cl, 1 ex

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RU 2 568 539 C2

Authors

Kruglov Sergej Nikolaevich

Kruglova Tat'Jana Pavlovna

Dates

2015-11-20—Published

2014-03-25—Filed

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