METHOD OF PRODUCING HIGH-PURITY INDIUM POWDER

WIPO Patent Application WO2003084864

A3

The invention referes to non-ferrous metallurgy and can be used for zinc and indium containing materials processing resulting in high-purity indium powder production. The method comprises converting crude indium into a salt compound and subsequent treatment of the latter with water solution in two stages using water redistillate and an acetic acid solution.

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GEIXMAN VSEVOLOD VLADIMIROVICH (RU)
KAZANBAEV LEONID ALEKSANDROVIC (RU)
KOZLOV PAVEL ALEKSANDROVICH (RU)
KOLESNIKOV ALEKSANDR VASILIEVI (RU)
KUBASOV VLADIMIR LEONIDOVICH (RU)
ZAGREBIN SERGEI ANATOLEVICH (RU)

PCT/RU2003/000138

March 04, 2004

April 04, 2003

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OTKRYTOE AKTSIONERNOE OBSCHEST (RU)
GEIXMAN VSEVOLOD VLADIMIROVICH (RU)
KAZANBAEV LEONID ALEKSANDROVIC (RU)
KOZLOV PAVEL ALEKSANDROVICH (RU)
KOLESNIKOV ALEKSANDR VASILIEVI (RU)
KUBASOV VLADIMIR L (RU)
ZAGREBIN SERGEI ANATOLEVICH (RU)

B22F9/24; B22F9/16; B22F9/20; C22B3/20; C22B3/44; C22B58/00; C22C1/04; C22B3/16; C01B; (IPC1-7): C22B58/00; B22F9/16; C22B3/20

US4406693A	1983-09-27
EP0192009A2	1986-08-27

DATABASE WPI Section Ch Week 200365, Derwent World Patents Index; Class M22, AN 2003-686451, XP002262326
DATABASE WPI Section Ch Week 198930, Derwent World Patents Index; Class M25, AN 1989-217582, XP002262327
PATENT ABSTRACTS OF JAPAN vol. 017, no. 554 (C - 1118) 6 October 1993 (1993-10-06)

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