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RU

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2 520 902

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IPC

C22B19/00(2006-01-01)

C22B11/00(2006-01-01)

C22B3/10(2006-01-01)

(21) (22)

Application

2012141601/02, 2012-09-28

(24)

Start date

2012-09-28

(22)

Actual filing date

2012-09-28

(45)

Published

2014-06-27

(72)

Inventor

Voropanova Lidija AlekseevnaKokoeva Natal'Ja Borisovna

(73)

Holder

Voropanova Lidija Alekseevna

EXTRACTION OF HEAVY METALS, IRON, GOLD AND SILVER FROM SULPHATE CAKE Russian patent published in 2014 - IPC C22B19/00 C22B11/00 C22B3/10 

Abstract RU 2520902 C2

FIELD: metallurgy.

SUBSTANCE: invention relates to hydrometallurgy and can be used for processing of concentrates, industrial products and solid wastes containing metals. Proposed process comprises leaching of cake 3 n, by HCl solution at 70°C and L:S ratio of 2. Note here that leaching is performed in the presence of table salt of concentration making at least 120-140 g/dm3.

EFFECT: intensified leaching, higher yield.

4 tbl, 2 ex

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RU 2 520 902 C2

Authors

Voropanova Lidija Alekseevna

Kokoeva Natal'Ja Borisovna

Dates

2014-06-27—Published

2012-09-28—Filed

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