Title:
【発明の名称】鉱物からの金属の製造方法
Document Type and Number:
Japanese Patent JP2857930
Kind Code:
B2
Abstract:
PCT No. PCT/AU93/00311 Sec. 371 Date Dec. 23, 1994 Sec. 102(e) Date Dec. 23, 1994 PCT Filed Jun. 25, 1993 PCT Pub. No. WO94/00606 PCT Pub. Date Jan. 6, 1994.A process for producing one or more metals from a mineral feedstock (12) is defined. The mineral is fed to a leaching apparatus (10) wherein it is contacted with electrolyte (14). The leaching apparatus has zones of decreasing oxidation potential (17, 18, 19, 20) respectively. A stream of electrolyte (14A) is removed from zone (20) and is treated to remove impurities and unwanted metals in treatment unit (25A), prior to metal recovery by electrolysis. The electrolyte after electrolysis is then returned to the leaching unit (10). A second electrolyte stream (14B) may be removed from zone (19) for recovery of additional metals. The electrolyte (14B) is treated to remove impurities and any unwanted metals in treatment unit (25B), prior to metal recovery by electrolysis. The electrolyte after electrolysis is returned to leaching unit (10). The process enables the leaching of difficult to leach minerals, including gold, and can produce one or more metals of high purity.
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Inventors:
EVERETT PETER KENNETH (AU)
Application Number:
JP50188794A
Publication Date:
February 17, 1999
Filing Date:
June 25, 1993
Export Citation:
Assignee:
INTEC PTY LTD (AU)
International Classes:
B01D71/02; B01F33/40; C22B3/04; C01G3/00; C01G9/00; C01G21/00; C01G28/00; C01G29/00; C01G30/00; C01G49/00; C01G53/00; C22B3/00; C22B3/02; C22B3/06; C22B3/10; C22B3/44; C22B11/00; C22B13/00; C22B15/00; C22B19/00; C22B23/00; C22B30/02; C22B30/04; C22B30/06; C22B61/00; C25C1/00; C25C1/08; C25C1/12; C25C1/16; C25C1/18; C25C1/20; C25C7/00; C25C7/02; C25C7/04; C22B; (IPC1-7): C22B3/04; C25C1/20
Attorney, Agent or Firm:
Eisuke Kishimoto (3 others)