Extraction of Yttrium (Ⅲ) into [C8mim][PF6] Containing Cyanex 923

稀土学报(英文版), 2007, 25(z1): 153-156.

^1, , ^2, , ^3, , ^4,

1.College of Chemistry, Jilin University, Changchun 130061, China;Key Laboratory of Rare Earth Chemistry and Physics, Changchun Institute of Applied Chemistry, Graduate School from Chinese Academy of Science, Chinese Academy of Science, Changchun 130022, China

2.Key Laboratory of Rare Earth Chemistry and Physics, Changchun Institute of Applied Chemistry, Graduate School from Chinese Academy of Science, Chinese Academy of Science, Changchun 130022, China

3.Key Laboratory of Rare Earth Chemistry and Physics, Changchun Institute of Applied Chemistry, Graduate School from Chinese Academy of Science, Chinese Academy of Science, Changchun 130022, China

4.College of Chemistry, Jilin University, Changchun 130061, China

基金项目: Distinguished Young Scholar Foundation of Jilin Province(20060114) 国家自然科学基金(50574080) The Hundreds Talents Program' from Chinese Academy of Sciences

Extraction of Yttrium (Ⅲ) into [C8mim][PF6] Containing Cyanex 923

Peng Bo ^1, , Sun Xiaoqi ^2, , Chen Ji ^3, , Ma Jiutong ^4,

1.College of Chemistry, Jilin University, Changchun 130061, China;Key Laboratory of Rare Earth Chemistry and Physics, Changchun Institute of Applied Chemistry, Graduate School from Chinese Academy of Science, Chinese Academy of Science, Changchun 130022, China

2.Key Laboratory of Rare Earth Chemistry and Physics, Changchun Institute of Applied Chemistry, Graduate School from Chinese Academy of Science, Chinese Academy of Science, Changchun 130022, China

3.Key Laboratory of Rare Earth Chemistry and Physics, Changchun Institute of Applied Chemistry, Graduate School from Chinese Academy of Science, Chinese Academy of Science, Changchun 130022, China

4.College of Chemistry, Jilin University, Changchun 130061, China

Keywords： room temperature ionic liquid

The extraction of Yttrium (Ⅲ) into [Cnmim] [PF6] (n=4,6,8) containing Cyanex 923 was studied in this paper. The mechanism of this extraction was indicated to be cation exchange. In addition, the extraction process is an endothermic reaction. The RTILs with shorter alkyl chain behave higher extraction efficiency during the extraction, however, which has also more loss to aqueous phase since the cation exchange mechanism.

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