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Zinc Extraction

2019104part of zinc hydrometallurgy and zinc solvent extraction includes the zinc and iron sulphate solution from the hot acid leach will typically contain 80100 gl zn, 2030 gl fe, mostly in the ferric state, and 4060 gl free sulphuric acidhe sulphuric acid concentrations will depend upon the leaching techniques used, and the composition of the zinc calcine.