氯化S-十二烷基异硫脲萃取Pt(Ⅳ)和Pd(Ⅱ)

• 作 者: 陈朝军 安丽艳 蒋绥平 杜喜良 章健民
• 机 构: 内蒙古医学院无机化学教研室,赤峰药厂质检科,内蒙古医学院无机化学教研室,鄂托克麻黄素厂,内蒙古医学院无机化学教研室,
• 出 处: 内蒙古医学院学报
• 发表日期: 1988年02期
• 关键词: 十二烷基 Pd Pt 有机相 萃取 萃合物 萃取剂浓度 盐酸浓度 萃取过程 Pt(Ⅳ)

本文研究了氯化S-十二烷基异琉脲萃取Pt(Ⅳ)和Pd(Ⅱ)的情况,提出了萃取Pt(Ⅳ)和Pd(Ⅱ)的机理,认为萃取Pt(Ⅳ)时,萃取有机相中形成了组成为[(C_(12)H_(25)S·C(NH_2)_2)_2·PtCl_5]的萃合物,萃取过程按(1)式进行;在萃取Pd(Ⅱ)时,有机相中形成了组成为[(C_(12)H_(25)S.C(NH_2)_2)_2·PdCl_4]的萃合物,萃取过程按(4)式进行.应用所提出的机理,满意地解释了影响萃取的各因素.在适当酸度下,用硫脲反萃有机相中的铂和钯,效果很好.

In this paper, the extraction of Pt (Ⅳ) and Pd (Ⅱ) by S-dodecyl isothiocyanuric chloride was studied. The mechanism of extracting Pt (Ⅳ) and Pd (Ⅱ) The extraction process was carried out according to the formula (1) in the extraction of organic phase. The extraction of Pd (Ⅱ) with the composition of [C 12 H 25 S · C (NH 2) 2) 2 · PtCl 5] , The complex of [(C_ (12) H_ (25) SC (NH_2) _2) _2 · PdCl_4] was formed in the organic phase and the extraction process was carried out according to the formula (4) Explains the factors that affect the extraction.Under the appropriate acidity, thiourea stripping platinum and palladium in the organic phase works well.