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p507萃取纯化viv制备高纯钒电解液的研究
Authors
张健
朱兆武
+4 more
王丽娜
王伟菁
陈德胜
雷泽
Publication date
1 January 2019
Publisher
Abstract
全钒氧化还原液流电池具有清洁、高效、安全、寿命长等优点,是一种新型的储能技术,成为目前研究的热点,其中高纯钒电解液的制备是研究的关键。以钒渣钠化焙烧后的含钒浸液为原料,通过“酸化-还原-萃取-反萃”一步纯化制备了高纯钒电解液。研究了V(IV)萃取及其与主要杂质元素硅和铝的分离效果,获得钒萃取纯化的优化条件为:P507浓度为30%,pH=1.8~2.0。温度对钒萃取影响较小;萃取过程中,钒与铝硅分离效果好;根据V(IV)的萃取和反萃分配曲线绘制了McCabe Thiele图,在pH=2.0、相比O/A为1∶1条件下,以30%(体积分数)的P507经两级(理论级)萃取,含钒20.9g·L^-1的料液中的钒基本萃取完全,萃取率大于98%;硫酸溶液能够很好地反萃钒,通过控制H2SO4浓度和相比,经两级逆流反萃和去除夹带有机相后制得了高质量的硫酸氧钒电解液
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Institutional Repository of Institute of Process Engineering, CAS (IPE-IR)
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oai:ir.ipe.ac.cn:122111/44310
Last time updated on 11/04/2021
Institutional Repository of Institute of Process Engineering, CAS (IPE-IR)
See this paper in CORE
Go to the repository landing page
Download from data provider
oai:ir.ipe.ac.cn:122111/35614
Last time updated on 05/12/2019
Institutional Repository of Institute of Process Engineering, CAS (IPE-IR)
See this paper in CORE
Go to the repository landing page
Download from data provider
oai:ir.ipe.ac.cn:122111/35612
Last time updated on 05/12/2019
Institutional Repository of Institute of Process Engineering, CAS (IPE-IR)
See this paper in CORE
Go to the repository landing page
Download from data provider
oai:ir.ipe.ac.cn:122111/44312
Last time updated on 11/04/2021