| 锂低硅铝比沸石交换母液中锂离子的回收Ⅰ——萃取工艺研究 |
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| 引用本文： | 孙继红,王丽娟,黄承.锂低硅铝比沸石交换母液中锂离子的回收Ⅰ——萃取工艺研究[J].北京工业大学学报,2010,36(9). |
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| 作者姓名： | 孙继红 王丽娟 黄承 |
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| 作者单位： | 北京工业大学,环境与能源工程学院,北京,100124;北京工业大学,环境与能源工程学院,北京,100124;北京工业大学,环境与能源工程学院,北京,100124 |
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| 基金项目： | 国家"八六三"计划资助项目 |
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| 摘 要： | 以磷酸三丁酯(TBP)和200#溶剂油的混合溶液为萃取剂,在协萃剂FeCl3的作用下,对Li-LSX分子筛交换后母液中的Li+(0.04 mol/L)进行了回收考察,系统研究了萃取时间、油水相比、酸度、温度、萃取剂浓度以及铁锂比和MgCl2浓度等因素对萃取过程的影响规律.结果表明,TBP对Li+有很好的萃取效果,萃取率可达到85%以上.最佳萃取条件为:c(Fe3+)/c(Li+)为4,c(MgCl2)为3～4 mol/L,TBP体积分数为40%～60%,温度为室温,萃取时间为10～15 min、pH值为2～3、油水相比为1∶1.
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| 关 键 词： | 锂离子 磷酸三丁酯 萃取 Li-LSX分子筛 |
Recovery of Lithium Ion From Exchanged Mother Liquids of Li-LSX Zeolite-Part 1: Research on the Extraction Process |
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| SUN Ji-hong,WANG Li-juan,HUANG Cheng.Recovery of Lithium Ion From Exchanged Mother Liquids of Li-LSX Zeolite-Part 1: Research on the Extraction Process[J].Journal of Beijing Polytechnic University,2010,36(9). |
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| Authors: | SUN Ji-hong WANG Li-juan HUANG Cheng |
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| Affiliation: | SUN Ji-hong,WANG Li-juan,HUANG Cheng(College of Energy and Environmental Engineering,Beijing University of Technology,Beijing 100124,China) |
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| Abstract: | In order to recover Lithium ion from exchanged mother liquids of Li-LSX zeolite,an extraction method of lithium ion by use of tri-n-butyl phosphate(TPB) with 200# gasoline as mixed solvent was investigated in the presence of ferric chloride as cooperation agent.Effects of procedure parameters,such as contact time,phase ratio,hydrochloric acid acidity,temperature,concentration of extractant,the ratio of c(Fe3+) /c(Li+) and concentration of MgCl2,on the extraction technology were analyzed in details.The resul... |
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| Keywords: | lithium ion tri-n-butyl phosphate extraction Li-LSX zeolite |
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