发明申请
US20130149219A1 SEPARATION OF IRON FROM VALUE METALS IN LEACHING OF LATERITE ORES 有权
从金属矿物中分离出来的铁矿石

SEPARATION OF IRON FROM VALUE METALS IN LEACHING OF LATERITE ORES
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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