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2 165 991

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IPC

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Application

99120334/02, 1999-09-23

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Start date

1999-09-23

(22)

Actual filing date

1999-09-23

(45)

Published

2001-04-27

(72)

Inventor

Plekhanov K.A.Lebed' A.B.Sheveleva L.D.Vorontsov V.V.Krajukhin S.A.Skopin D.Ju.Lobanov V.G.

(73)

Holder

Aktsionernoe Obshchestvo Otkrytogo Tipa

METHOD OF SELECTIVE DEPOSITION OF PALLADIUM- PLATINUM AMMONIA SOLUTIONS Russian patent published in 2001 - IPC

Abstract RU 2165991 C1

FIELD: non-ferrous metallurgy, particularly, affinage industries. SUBSTANCE: method comprises selective deposition of palladium from palladium-platinum ammonia solutions with water-soluble xanthagenates. Palladium is deposited at pH of 7.75-8.5, and original solutions are pretreated with hydrogen peroxide at consumption rate of 5.85-8.78 g per 1 g of platinum. Method makes is possible to attain high degree of separation of palladium and platinum and to simplify equipment used. EFFECT: more efficient selective deposition method. 1 tbl

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RU 2 165 991 C1

Authors

Plekhanov K.A.

Lebed' A.B.

Sheveleva L.D.

Vorontsov V.V.

Krajukhin S.A.

Skopin D.Ju.

Lobanov V.G.

Dates

2001-04-27—Published

1999-09-23—Filed