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Process for the separation of zinc oxide that includes leaching material with a solution of concentrated base, Separation of the insoluble Materials, and precipitation of zinc oxide from Fluid enriched by the addition of an antisolvent Liquid Enriched
Process for the separation of zinc oxide that includes leaching material with a solution of concentrated base, Separation of the insoluble Materials, and precipitation of zinc oxide from Fluid enriched by the addition of an antisolvent Liquid Enriched
A process for separating zinc from a feedstock containing a mixture of metals and metal compounds. The process includes leaching a zinc-containing feedstock with a concentrated basic solution, optionally diluting the slurry with an amount of water sufficient to reduce the viscosity of the slurry thereby facilitating separation of a pregnant liquor containing dissolved zinc from insoluble materials, separating the insoluble materials from the pregnant liquor, and precipitating zinc oxide from the pregnant liquor by adding an anti-solvent to the pregnant liquor. The described process also provides for recycling of the basic solution and the anti-solvent.
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