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A process for the recovery of valuable metals from the ashes of normal and complex pyrites
A process for the recovery of valuable metals from the ashes of normal and complex pyrites
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机译:从普通和复杂黄铁矿的灰烬中回收有价值的金属的方法
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摘要
A process for the recovery of valuable metals from the ashes of normal and complex pyrites is described, comprising the steps of grinding the ashes of sulphide containing ores to a size less than 90 microns; preparing from the ashes a slurry with the recycled liquids; treating the slurry, at room temperature, with a leaching agent to dissolve the sulphides and the oxides of the valuable metals; separating the liquid phase from the ashes and washing the latter free from any solution of compounds of the valuable metals; purifying the solutions of the valuable metals by adding bases; cementing the solutions, whether purified or not, to produce a shell of valuable metals and a liquid devoid of valuable metals.
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