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Cobalt recovery method and nickel from laterite ore by a combination of medium-leaching and atmospheric pressure leaching
Cobalt recovery method and nickel from laterite ore by a combination of medium-leaching and atmospheric pressure leaching
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机译：中浸与大气压浸结合回收红土矿石中钴和镍的方法
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摘要
It is a procedure for leaching laterite ore containing limonite and saprolite. Sufficient inorganic acid is added to the limonite slurry, it is leached at atmospheric pressure, which dissolves the soluble iron soluble and non-ferrous metals of majority. After addition of saprolite at a pressure above atmospheric pressure and temperatures above the normal boiling point further, the slurry sufficient to leach the majority of the nickel contained in the saprolite, and to precipitate most of the iron in solution The brewing time is. Pressure of the slurry is then decreased, nickel and / or cobalt solvent extraction continues, resin - in - ion exchange or other pulp method, by recovery or other methods of hydroxide precipitation, or sulfide, is recovered from the leachate that.
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