Separation of zinc and iron from secondary manganese sulfate leachate by solvent extraction

Niklas Jantunen,Toni Kauppinen,Justin Salminen,Sami Virolainen,Ulla Lassi,Tuomo Sainio

Minerals Engineering（2021）

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摘要

•Purification of zinc electrowinning anode sludge leachate by solvent extraction.•Extraction of manganese was limited by crowding the extractants.•Over 99.5% removal of zinc and iron in two countercurrent extraction stages.•The purified manganese sulfate solutions are applicable in battery manufacturing.

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关键词

Continuous solvent extraction,Countercurrent extraction,Anode sludge,Manganese,Zinc,Iron

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