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PROCESS FOR THE RECUPERATION OF NOBLE METALS FROM THE ROASTING ASHES OF THE POLYMETALLIC SULPHURATED OVES
PROCESS FOR THE RECUPERATION OF NOBLE METALS FROM THE ROASTING ASHES OF THE POLYMETALLIC SULPHURATED OVES
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机译:从多金属硫化炉焙烧灰中回收贵金属的方法
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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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