Solvent Extraction Separation of Re (VI) from Hydrochloric Acid Leaching Solution of Spent Super Alloy by Alamine 304-1

Solvent extraction experiments for the separation and recovery of Re from hydrochloric acid leaching solution of spent super alloy by Alamine 304-1 were carried out. The effects of some variables, such as the nature and concentration of the extractants, HCl concentration, and the presence of impurities were investigated. The synthetic solutions of Re were prepared by dissolving ammonium perrhenate (APR), Alamine304-1, Cyanex272 and were used solvent extractants distilled in kerosene. The extraction percentage of Re by Alamine304-1 was higher than the other extractants as Cyanex272 and and the percentage is about 99%. Only 99% of Re was extracted in the presence of Al, Co and V in HCl solution.