| 溶剂萃取法制备锂离子电池用硫酸钴工艺研究 |
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| 引用本文： | 苏华.溶剂萃取法制备锂离子电池用硫酸钴工艺研究[J].稀有金属与硬质合金,2011,39(2). |
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| 作者姓名： | 苏华 |
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| 作者单位： | 湖南稀土金属材料研究院,湖南长沙,410126 |
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| 摘 要： | 研究了用粗氢氧化钴制备锂离子电池用硫酸钴的工艺.采用稀硫酸优溶除杂、还原浸出、氧化沉淀法除铁、锰、砷,氟化沉淀法除钙、镁,P204萃取深度净化除杂;P507萃取除钠及分离镍、钴,制备出适用于生产锂钴氧化合物的电子级硫酸钴.
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| 关 键 词： | 氢氧化钴 浸出 净化 萃取 硫酸钴 |
Preparation of Lithium-ion Battery-Grade Cobalt Sulfate by Solvent Extraction |
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| SU Hua.Preparation of Lithium-ion Battery-Grade Cobalt Sulfate by Solvent Extraction[J].Rare Metals and Cemented Carbides,2011,39(2). |
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| Authors: | SU Hua |
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| Affiliation: | SU Hua(Hunan Institute of Rare Earth Materials,Changsha 410126,China) |
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| Abstract: | Research is made on the process for preparation of lithium-ion battery-grade cobalt sulfate from crude cobalt hydroxide.And the process flowsheet is as follows:impurity removal by preferential dissolution with dilute sulfuric acid,reducing leaching,Fe,Mn and As removal by oxide precipitation,Ca and Mg removal by fluoride precipitation,deep purification and impurity removal by extraction with P204,Ni and Co separation and Na removal by extraction with P507.The electronic-grade cobalt sulfate suitable for pro... |
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| Keywords: | cobalt hydroxide leaching purification extraction cobalt sulfate |
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