三辛甲基氯铵铑(III)氯化学种的提取

The Mining and Materials Processing Institute of Japan Pub Date : 1997-02-25 DOI:10.2473/SHIGENTOSOZAI.113.140

泰渡辺, 康史鈴木

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引用次数: 3

摘要

研究了用三辛基甲基氯化铵(R3R'NCl)在不同稀释剂中萃取氯化铑。萃取等温线随酸浓度的增加而减小。在有机相中形成的络合物的化学计量组成为(R3R n n) RhCl4(H2O)2。因此，提出了以下萃取氯化铑的机理:R3R 'NCl (org) + RhCl4 (H2O) 2 - (aq)⇔(R3R’)RhCl4 (H2O) 2 (org) + Cl - (aq)。这些结果也得到了可见光和红外光谱测量的证实。在稀释剂的作用考察中，硝基苯和苯分别在0.1 mol dm-3和7 mol dm-3盐酸条件下对Rh (III)的萃取作用最大。分布比随温度升高而增大。

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塩化トリオクチルメチルアンモニウムによるロジウム(III)クロロ化学種の抽出

The extraction of rhodium (III) chloro species has been investigated by using a trioctylmethylammonium chloride (R3R'NCl) in various diluents. The extraction isotherm decreasesThe extraction isotherm decreases with increasing the acid concentration. The stoichiometric composition of the complex formed in the organic phase deduced to be (R3R'N) RhCl4(H2O)2. Therefore, the following mechanism is proposed for the extraction of rhodium (III) chloro species.R3R'NCl (org) +RhCl4(H2O)2-(aq)⇔(R3R'N) RhCl4(H2O)2 (org)+Cl-(aq).These results are also confirmed by visible and infrared spectral measurements.In the examination of diluents effects, nitrobenzene and benzene most promoted the extraction of Rh (III) at 0.1 and 7 mol dm-3 hydrochloric acids, respectively.The distribution ratio increases with increasing temperature.

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The Mining and Materials Processing Institute of Japan

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