Process of treating electrolytic zinc refining jarosite residues
专利汇可以提供Process of treating electrolytic zinc refining jarosite residues专利检索，专利查询，专利分析的服务。并且The jarosite residues produced in the precipitation of complex basic iron sulphate from solutions of iron and zinc and other metal sulphates in the presence of ammonium, sodium and/or potassium ions in the electrolytic refining of zinc, heretofore dumped in copious quantities as waste, are treated for use as at least a component of fertilizer. The residue solids are redissolved by acidification and a substantial part of the iron sulphate is removed by fractional crystallization leaving a mother liquor containing the plant fertilizer materials. The iron separated from the jarosite residues may be recovered as sulfate, oxide or metal. Mineral phosphate, such as rock or bone, may be treated with sulphuric acid to form superphosphate which may then be admixed with the mother liquor residues to produce a more potent fertilizer. Iron may be recovered as oxide by drying and roasting the separated iron sulphate to drive off volatile materials and metallic iron may be produced by reducing this oxide.，下面是Process of treating electrolytic zinc refining jarosite residues专利的具体信息内容。
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