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2 031 166

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IPC

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Application

5006735/02, 1991-10-18

(22)

Actual filing date

1991-10-18

(45)

Published

1995-03-20

(72)

Inventor

Bogdanov V.I.Bychkov E.M.Nikitin V.P.Orlov A.M.Rytvin E.I.Slotintsev N.M.Trofimov N.N.Kotljar Ju.A.

(73)

Holder

Nauchno-Proizvodstvennyj Kompleks

PROCESS FOR PREPARING NOBLE METALS AND ALLOYS Russian patent published in 1995 - IPC

Abstract RU 2031166 C1

FIELD: treatment of noble metals. SUBSTANCE: the starting affinated noble metals are smelted in a cold crucible in a high frequency induction furnace in an oxygen atmosphere and the resulting melt is cooled till it becomes crystalline in the closed space of the cold crucible. On completion of the crystallization, the smelting and cooling operations are carried out simultaneously at an oxygen pressure of (0,1-5)·10⁴. EFFECT: more efficient preparation process. 1 tbl

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RU 2 031 166 C1

Authors

Bogdanov V.I.

Bychkov E.M.

Nikitin V.P.

Orlov A.M.

Rytvin E.I.

Slotintsev N.M.

Trofimov N.N.

Kotljar Ju.A.

Dates

1995-03-20—Published

1991-10-18—Filed