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1 840 853

(13)

A1

(51)

IPC

C25C3/34(2006-01-01)

(21) (22)

Application

3016006/02, 1981-04-10

(22)

Actual filing date

1981-04-10

(45)

Published

2013-03-10

(72)

Inventor

Baraboshkin Aleksej NikolaevichSaltykova Nina ArkhipovnaSmirnov Aleksandr BorisovichBychkov Evgenij MatveevichTimofeev Nikolaj IvanovichPirogov Sergej Mikhajlovich

ELECTROLYTIC REFINING OF NOBLE METALS Russian patent published in 2013 - IPC C25C3/34 

Abstract SU 1840853 A1

FIELD: metallurgy.

SUBSTANCE: invention relates to electrochemical production and refining of noble metals. Proposed method comprises electrolytic refining of noble metals in the melt of alkaline metal chlorides that contains 1-8 wt % of noble metals. Process is carried out in airtight conditions at 400-850°C while metal being refined is used as anode. Note here that 0.5-100 weight parts of electrolyte per one weight part of anode are used at relationship between total amount of impurities in anode (in g/atom) and total amount of metal ions in the melt making 0.001-0.4.

EFFECT: simplified and accelerated process.

4 ex

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SU 1 840 853 A1

Authors

Baraboshkin Aleksej Nikolaevich

Saltykova Nina Arkhipovna

Smirnov Aleksandr Borisovich

Bychkov Evgenij Matveevich

Timofeev Nikolaj Ivanovich

Pirogov Sergej Mikhajlovich

Dates

2013-03-10—Published

1981-04-10—Filed

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