COMPARISON OF EXTRACTION OF U(Ⅵ) FROM NITRIC ACID BY DISULFOXIDES AND TBP

Six kinds of disulfoxides (RSO(CH 2) n SOR( n =4,6; R=CH 3(CH 2) 2CH 2 -,CH 3CH(CH 3)CH 2CH 2 -,CH 3 (CH 2) 3CH(C 2H 5)CH 2 -) are synthesized. The extraction of uranium(Ⅵ) from nitric acid solution by disulfoxides is studied and compared with that by TBP. The experimental results show that their extracting ability is superior to that by TBP.