作　　者： ; ; ; ;

机构地区： 华南理工大学化学与化工学院

出　　处： 《贵金属》 2006年第3期17-21,共5页

摘　　要： 对合成亚砜BSO萃取Pd(II)、Pt(IV)性能的研究表明,在不同酸度下BSO对Pd(II)均有优异的萃取性能,而只有在高酸度介质里BSO对Pt(IV)有较高的萃取能力。在低酸度下利用BSO对Pd(II)、Pt(IV)萃取性能的差异,能很好地萃取分离Pd(II)、Pt(IV);也可以在高酸度下共萃Pd(II)、Pt(IV),再利用水反萃Pt(IV),达到分离Pd(II)、Pt(IV)的目的。 The experimental results showed that Pd（Ⅱ） can be well extracted by solvent extraction with synthetic sulfoxide BSO in the concentration range of hydrochloric acid from 0.1mol/L to 4.0mol/L, and Pt（Ⅳ） can be well extracted only in high concentration hydrochloric acid solution. These properties were used for extraction separation of Pd（Ⅱ） from Pt（Ⅳ） in low hydrochloric acid concentration solution; the largest separation coefficient is 223258.0. They were also used for coextraction of Pd（Ⅱ） and Pt（Ⅳ） in high hydrochloric acid concentration solution, and then with a back-extraction by water, the Pt（Ⅳ） was stripped from organic phase, and the largest separation coefficient is 4960.0. It indicated sulfoxide BSO is a valuable extractant from Pt（Ⅳ） by solvent extraction.

关 键 词： 湿法冶金 萃取分离 钯 铂

领　　域： [冶金工程]