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Application

98107372/02, 1998-04-21

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Actual filing date

1998-04-21

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Published

1999-06-27

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Inventor

Bogdanov V.I.Ermakov A.V.Gorbatova L.D.Grokhovskij S.V.Lavrov A.A.Voinov V.N.Grjaznukhina L.M.Efremova E.N.Grigor'Ev A.N.Novikov A.E.

(73)

Holder

Otkrytoe Aktsionernoe Obshchestvo Zavod Po Obrabotke Tsvetnykh Metallov"

METHOD OF PROCESSING PLATINUM GROUP METAL ALLOYS Russian patent published in 1999 - IPC

Abstract RU 2132399 C1

FIELD: precious metal technology. SUBSTANCE: invention, in particular, relates to electrochemically processing binary platinum group metal alloys such as platinum-rhodium and platinum-iridium. Initial material in the form of briquetted scrap is dissolved in concentrated hydrochloric acid with hydrogen peroxide added, while simultaneously affecting material by alternate current with density 3 to 30 A/cu.dm, which is supplied on briquetted scrap electrodes. Initial concentration of hydrogen peroxide is 1-2 g/l and its consumption 0.03500.07 g/A h. EFFECT: enhanced process efficiency.

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RU 2 132 399 C1

Authors

Bogdanov V.I.

Ermakov A.V.

Gorbatova L.D.

Grokhovskij S.V.

Lavrov A.A.

Voinov V.N.

Grjaznukhina L.M.

Efremova E.N.

Grigor'Ev A.N.

Novikov A.E.

Dates

1999-06-27—Published

1998-04-21—Filed

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