| 溶剂萃取法分离钨、磷的研究 |
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| 引用本文： | 李大任,苏元复.溶剂萃取法分离钨、磷的研究[J].化工学报,1990,41(1):43-49. |
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| 作者姓名： | 李大任 苏元复 |
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| 作者单位： | 华东化工学院化学工程研究所,华东化工学院化学工程研究所 上海
,上海 |
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| 摘 要： | 本文提出了一个用溶剂萃取方法分离钨、磷以制取高纯钨产品的过程,实验研究了最适宜的萃取条件,证实该过程适用于钨冶金工业中钨酸钠溶液的净化.
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| 关 键 词： | 钨 磷 溶剂萃取法 分离 |
Separation of Tungsten and Phosphorus by Solvent Extraction with Petroleum Sulfoxide |
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| Li Daren and Su Yuanfu.Separation of Tungsten and Phosphorus by Solvent Extraction with Petroleum Sulfoxide[J].Journal of Chemical Industry and Engineering(China),1990,41(1):43-49. |
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| Authors: | Li Daren and Su Yuanfu |
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| Affiliation: | Li Daren and Su Yuanfu
(Chemical Engineering Research Centre,East China Institute of Chemical Technology,Shanghai) |
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| Abstract: | Decomposition of tungsten ore concentrate is usually carried out by alkaline process and the intermediate product is crude sodium tungstate. It contains many impurities among which phosphorus is one of the most harmful elements. By using a solvent consisting of petroleum sulfoxide (PSO) and a diluent, the small amount of phosphorus can be removed almost completely in low acidic solution, i. e. at pH = 2.5 by countercurrent-multistage extraction. The extraction species is most likely H3PW12O40·PSO. |
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