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2 523 062

(13)

(51)

IPC

C22B11/00(2006-01-01)

C22B3/46(2006-01-01)

(21) (22)

Application

2012142019/02, 2012-10-02

(24)

Start date

2012-10-02

(22)

Actual filing date

2012-10-02

(45)

Published

2014-07-20

(72)

Inventor

Tatarinov Aleksej Pavlovich

(73)

Holder

Otkrytoe Aktsionernoe Obshchestvo Nauchno-Issledovatel'Skij Institut Blagorodnykh I Redkikh Metallov I Almazov" Oao

EXTRACTION OF SILVER FROM ALKALINE CYANIDE SOLUTIONS Russian patent published in 2014 - IPC C22B11/00 C22B3/46

Abstract RU 2523062 C2

FIELD: metallurgy.

SUBSTANCE: invention relates to hydrometallurgy of noble metals and can be used for silver extraction from alkaline cyanide solutions by cementation. Proposed method comprises cementation by aluminium as 0.1-2.0 mm thick chips. Cementation is carried out at specific solution feed rate of 1-4 m³/m²·h at concentration of sodium hydroxide of 1.0-10.0 g/l.

EFFECT: higher yield and quality.

3 tbl, 3 ex

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RU 2 523 062 C2

Authors

Tatarinov Aleksej Pavlovich

Dates

2014-07-20—Published

2012-10-02—Filed