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有色金属(冶炼部分):2021,(2):72-76
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氯化焙烧—水浸从锂云母精矿中提锂试验
柳林, 刘磊, 张亮, 王威, 刘红召, 曹耀华
(中国地质科学院郑州矿产综合利用研究所)
Research on Recovery of Lithium from Lepidolite Concentrate by Chlorination Roasting and Water Leaching
LIU Lin, LIU Lei, ZHANG Liang, WANG Wei, LIU Hong-zhao, CAO Yao-hua
(Zhengzhou Institute of Multipurpose Utilization of Mineral Resources,CAGS)
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投稿时间:2020-10-17     修订日期:2020-10-19     录用日期:2020-10-25     网络发布日期:2021-01-21
中文摘要: 采用氯化焙烧—水浸的方法从某Li2O品位为3.23%的锂云母浮选精矿中回收锂,考察了焙烧过程中氯化剂用量、焙烧温度、焙烧时间,浸出过程中液固比、浸出温度、浸出时间对Li2O浸出率的影响。结果表明:在CaCl2用量为锂云母精矿质量的3/4,焙烧温度900 ℃,焙烧时间40 min,焙烧渣在液固比3︰1,室温浸出40 min的条件下,Li2O浸出率可达到95.36%,回收效果较好。
中文关键词: 锂云母  氯化焙烧  水浸  提锂
Abstract:Lithium was recovered from lepidolite concentrate with 3.23% Li2O by chlorination roasting and water leaching method. Effects of chlorination agent dosage, roasting temperature, roasting time, L/S, leaching temperature and leaching time on Li2O leaching rate were discussed. The results show that leaching rate of Li2O is 95.36% under the optimum conditions including CaCl2 dosage of 3/4 of mineral mass, roasting temperature of 900 ℃, roasting time of 40 min, L/S of leaching of 3︰1, and leaching time of 40 min under room temperature.
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基金项目:中国地质调查局地质调查项目(DD20190186)
引用文本:
柳林,刘磊,张亮,王威,刘红召,曹耀华.氯化焙烧—水浸从锂云母精矿中提锂试验[J].有色金属(冶炼部分),2021(2):72-76.
LIU Lin,LIU Lei,ZHANG Liang,WANG Wei,LIU Hong-zhao,CAO Yao-hua.Research on Recovery of Lithium from Lepidolite Concentrate by Chlorination Roasting and Water Leaching[J].Nonferrous Metals (Extractive Metallurgy),2021(2):72-76.

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