发明名称 |
METHOD FOR SELECTIVE PRECIPITATION OF IRON, ARSENIC AND ANTIMONY |
摘要 |
A method for selectively processing a polymetallic oxide solution containing a plurality of base metals comprising at least one of: Cu, Co, Ni, Zn associated with iron, comprising acid leaching the solution; recovering a filtered leachate; oxidizing the leachate; and adjusting the pH of the leachate in presence of a complexing agent; wherein the acidic solution is one of: i) a hydrochloric acid solution and ii) a sulfuric acid solution at a pH lower than about 1.5, and the complexing agent is one of: i) ammonium chloride and ii) ammonium sulfate, the step of adjusting the pH comprising raising the pH to a range between about 2.5 and about 3.5. |
申请公布号 |
CA2861537(A1) |
申请公布日期 |
2013.07.18 |
申请号 |
CA20122861537 |
申请日期 |
2012.11.13 |
申请人 |
DUNDEE SUSTAINABLE TECHNOLOGIES INC. |
发明人 |
LALANCETTE, JEAN-MARC;DUBREUIL, BERTRAND;LEMIEUX, DAVID |
分类号 |
C22B3/44;C22B3/06;C22B15/00;C22B19/00;C22B23/00;C22B30/02;C22B30/04;C22B61/00 |
主分类号 |
C22B3/44 |
代理机构 |
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代理人 |
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主权项 |
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地址 |
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