Recyclable Recovery of Lead from Zinc Hydrometallurgy Residue: By NH4Cl-MgCl2 Leaching and Novel Cyclone-Electrowinning
Changmao Liao,
Zhonglin Li,
Lijun Liu
et al.
Abstract:Lead sulfate residue, generated from the leaching of low-grade zinc oxide derived from rotary kilns with a lead content of 35−45%, is toxic and hazardous. Nonetheless, it also constitutes a valuable secondary lead resource. In this study, a novel, recyclable method was employed to recover lead. The results of the Response Surface analysis demonstrated that the leaching rate of lead achieved 97% when the main leaching reagent NH 4 Cl was 200 g L −1 , the assistant leaching reagent MgCl 2 was 140 g L −1 along wi… Show more
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