Experimental Verification of Thorex Process in Multi-Stage Centrifugal Extractors

The one-cycle acid Thorex process is recommended for thorium-based fuel reprocessing. Experimental verification of Thorex process was performed by 30 stages 10 mm centrifugal extractors. The results show that the recovery of Th and U are 99.994% and 99.30%, respectively. The SF_U/Th and SF_Th/U are 1.5×10² and 2.2×10⁴, respectively. A higher recovery of U should be attained if the stages for supplement extraction of 1B section are increased.