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报道了Ｎ，Ｎ－二辛基甘氨酸从盐酸体系中萃取铑的机理．结果表明：铑的萃取率随酸度、氯离子浓度、铑离子浓度的增大而降低．采用斜率法测得萃合物组成为：Ｒ２ＮＣＨ２ＣＯＯＨＨＲｈ（Ｈ２Ｏ）２Ｃｌ４．萃取反应方程式为：Ｒ２ＮＣＨ２ＣＯＯＨ．ＨＣｌ（Ｏ）＋Ｒｈ（Ｈ２Ｏ）２Ｃｌ－４（Ａ）＝Ｒ２ＮＣＨ２ＣＯＯＨ．ＨＲｈ（Ｈ２Ｏ）２Ｃｌ４（Ｏ）＋Ｃｌ
The mechanism of extracting rhodium from N, N-dioctylglycine from hydrochloric acid system was reported. The results show that the extraction rate of rhodium decreases with the increase of acidity, chloride ion concentration and rhodium ion concentration. Slope method was used to determine the composition of the extract: R2NCH2COOHHRh (H2O) 2Cl4. The extraction reaction equation is: R2NCH2COOH. HCl (O) + Rh (H2O) 2Cl-4 (A) = R2NCH2COOH. HRh (H2O) 2Cl4 (O) + Cl