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A low-grade zinc oxide ore with high silicon was cured by sulfuric acid in a water-starved system and then leached in water. Thermodynamics of the curing process was analyzed according to the phase stability diagram for the systems of Zn-S-O-H and Si-O-H. It was indicated that the extraction of zinc and the dissolution of silica were influenced by the water content in samples during cured. Under optimal...
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