发明申请
- 专利标题: SEPARATION OF IRON FROM VALUE METALS IN LEACHING OF LATERITE ORES
- 专利标题(中): 从金属矿物中分离出来的铁矿石
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申请号: US13711874申请日: 2012-12-12
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公开(公告)号: US20130149219A1公开(公告)日: 2013-06-13
- 发明人: Vaikuntam I. Lakshmanan , Ramamritham Sridhar , Jonathan Chen , M. A. Halim , Robert DeLaat
- 申请人: Vaikuntam I. Lakshmanan , Ramamritham Sridhar , Jonathan Chen , M. A. Halim , Robert DeLaat
- 主分类号: C21B3/00
- IPC分类号: C21B3/00 ; C22B3/00
摘要:
The invention provides a process for the leaching of a laterite ore, concentrate, tailings or waste rock for the recovery of value metals, at least one value metal being nickel. The laterite ore or concentrate is subjected to a leaching step with a lixiviant comprising hydrochloric acid to leach nickel from the laterite ore, followed by a liquid/solids separation step. The liquid obtained is subject to solvent extraction with a dialkyl ketone, to obtain a solution rich in iron and a raffinate. Separation of iron from cobalt and nickel is obtained.
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