Title:
塩化物で補助される硫化物鉱石からの銅の湿式冶金的抽出方法
Document Type and Number:
Japanese Patent JP4153659
Kind Code:
B2
Abstract:
A process for the extraction of metal from an ore or concentrate which contains nickel and/or cobalt values and other metals, comprises subjecting the ore or concentrate to acid leaching under pressure at pH<=2 to obtain a liquor containing nickel and/or cobalt values, subjecting the liquor to a first precipitation stage at pH of about 5 to 6 to produce a solid containing non nickel and non cobalt metals and a resultant solution containing the nickel and/or cobalt values and subjecting the resultant solution to a second precipitation stage at a pH of about 7 to 8 to produce a solid containing nickel and/or cobalt.
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Inventors:
David El Jones
Application Number:
JP2000509882A
Publication Date:
September 24, 2008
Filing Date:
August 14, 1998
Export Citation:
Assignee:
COMINCO ENGINEERING SERVICES LTD.
International Classes:
C22B9/02; C22B15/00; C22B3/04; C22B3/06; C22B3/08; C22B3/10; C22B3/26; C22B3/44; C22B23/00; C22B26/22; C22B47/00
Domestic Patent References:
| JP10510585A | ||||
| JP11506166A | ||||
| JP62146226A | ||||
| JP11510559A | ||||
| JP11506167A |
Attorney, Agent or Firm:
Tatsuhiko Sato
Takehiro Chiba
Takehiro Chiba