| 高酸度下二(2-乙基己基)亚砜萃取钯的机理研究 |
| STUDY ON MECHANISM OF EXTRACTING PALLADIUM (Ⅱ) BY DI(2-ETHYLHEXYL) SULFOXIDE AT HIGH ACIDITY |
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| 摘要: 本文研究了DEHSO在[HCl]=8N条件下萃取Pd(Ⅱ)的机理,通过斜率法、Asmus法、饱和法确定了亚砜的配位数。并通过萃合物的元素分析、紫外光谱和红外光谱的研究推断出萃合物的组成、结构和萃取反应机理。 |
| 关键词: 钯 萃取机理 二(2-乙基已基)亚砜 |
| 基金项目: |
| Abstract: In this paper we have studied the mechanism of extracting palladium (Ⅱ) by di(2-ethylhexyl) sulfoxide (DEHSO) at high acidity ([HCl] = 8N). The ratio of [DEHSO] and [Pd2+] in the extracted species is determined experimentally by slope, saturation and Asmus methods. Its composition and structure as well as the mechanism of extraction reaction are inferred by elementary analysis,infrared and ultraviolet spectra. The mechanism of reaction may be described in the following.[H(H2O)n]+ + Cl- + 3L(o)⇔[H(H2O)n·3L]Cl(o) + 3H2O (1) [Pd(H2O)Cl3]- + [H(H2O)n3L]+Cl(o)-⇔[H(H2O)n3L]+.[Pd(H2O)Cl3](o)- + Cl- (2)CH(H2O)n·3L]+[Pd(H2O)Cl3]-⇔[PdCl2L2][H+H2O)nLCl-](o) (3) |
| Keywords: di(2-ethylhexyl)sulfoxide palladium extraction mechanism |
| 投稿时间：1987-05-29 |
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| 朱沁华,刘国兴,王汉章.高酸度下二(2-乙基己基)亚砜萃取钯的机理研究[J].无机化学学报,1988,4(3):70-74. |
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