Journal of South China University of Technology (Natural Science Edition) ›› 2008, Vol. 36 ›› Issue (7): 57-61.

• Chemistry & Chemical Engineering • Previous Articles     Next Articles

Extraction Properties and Mechanism of Rhodium with Dialkyl Sulphoxide

Li Yao-wei1  Qi Xi-dui1  Gu Guo-bang2   

  1. 1. School of Chemistry and Environment, South China Normal University, Guangzhou 510006, Guangdong, China; 2. School of Chemistry and Chemical Engineering, South China University of Technology, Guangzhou 510640, Guangdong, China
  • Received:2007-05-28 Revised:2007-10-31 Online:2008-07-25 Published:2008-07-25
  • Contact: 李耀威（1976-），女，博士，讲师，主要从事固体废弃物资源综合利用及贵金属再生利用的研究． E-mail:liyaowei@scnu．edu.cn
  • About author:李耀威（1976-），女，博士，讲师，主要从事固体废弃物资源综合利用及贵金属再生利用的研究．
  • Supported by:

    广东省自然科学基金资助项目（06300845）

PDF

922

Abstract:

Rhodium was extracted from an Rh-Sn-Cl system, with dialkyl sulphoxide （DEHSO） as the extractant and with stannous chloride as the activator. The results indicate that the extraction rate of rhodium increases with the molar ratio of Sn to Rh till the maximum of 99% at a molar ratio of 6： 1 with 1.0 mol/L DEHSO in 3 mol/L HCl, that the Rh in the loaded organic phase can be stripped with 5 mol/L HCl ＋ 0. 03 mol/L NaClO3 , and that the extraction obeys the mechanism of acid ion association.

Key words: rhodium, solvent extraction, dialkyl sulphoxide, stannous chloride, ion association