Title:
塩化物で補助された金属の湿式冶金的抽出
Document Type and Number:
Japanese Patent JP2005526909
Kind Code:
A
Abstract:
A process for the extraction of a base metal such as Ni, Co or Zn, from suiphide ore or concentrate containing copper and the base metal comprises the step of subjecting the ore or concentrate to pressure oxidation in the presence of oxygen and an acidic solution containing halide and sulphate ions to produce a product solution containing copper and the base metal. The product solution is subjected to a copper extraction process for recovering copper from the solution and the product solution containing the base metal after copper recovery is recirculated or recycled to the pressure oxidation to effect build-up of the base metal in the product solution. Preferably, a stream which is split from the product solution is treated for the recovery of the base metal.
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Inventors:
David El Jones
Rachel Moore
Susan Cullen Stocker
Rachel Moore
Susan Cullen Stocker
Application Number:
JP2004507544A
Publication Date:
September 08, 2005
Filing Date:
May 22, 2003
Export Citation:
Assignee:
COMINCO ENGINEERING SERVICES LTD.
International Classes:
C22B3/04; C22B3/08; C22B3/44; C22B15/00; C22B19/00; C22B19/20; C22B23/00; (IPC1-7): C22B3/04; C22B3/44; C22B15/00; C22B19/00; C22B23/00
Attorney, Agent or Firm:
Tatsuhiko Sato
Takeshi Sagi
Kenichi Homma
Takeshi Sagi
Kenichi Homma