Leaching of manganese nodule in dilute acid solutions in presence of zinc sulfide concentrate

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作者：
Central South Univ of Technology, Hunan, China [1 ]
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来源：
Miner Process Extr Metal Rev | / 1-4卷 / 95-100期
关键词：
Extractive metallurgy - Hydrochloric acid - Leaching - Sulfur - Sulfuric acid - Zinc - Zinc sulfide;
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摘要：
In 1-3 mol/l HCl and 50-180 g/l H2SO4 solutions, the leaching of manganese nodule in the presence of zinc sulfide concentrate was investigated. It was found that HCl was a more efficient leachant than H2SO4. Sulfur in the raw material remains mainly in the residues. In H2SO4 solution the extraction of Zn is less than 50% because a film of elemental sulfur is formed on the unreacted sphalerite.
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