Synergistic extraction and separation of Am(III) and Ln(III) with HBMPPT-sulfoxide-HNO₃-toluene system

Synergistic extraction and separation of Am(III) and Ln(III) with HBMPPT-sulfoxide-HNO 3 -toluene system 1 first-author Naval Medical Research Institute, Shanghai 200433 Naval Medical Research Institute, Shanghai 200433 Some sulfoxides (petroleum sulfoxide -PSO, di-n-octyl sulfoxide -DOSO, etc.) were chosen as synergists to study the synergistic effect on the extraction reaction with HBMPPT (4-benzoyl-2,4-dihydro-5-methyl-2-phenyl-3H-pyrazol-3-thione) for Am(III), and the synergistic separation for Am(III) and Ln(III). The synergistic extraction ability of PSO is greater than that of DOSO for Am(III). The synergistic complexes may be presented as Am•NO 3 •(BMPPT) 2 •HBMPPT•S 2 (S indicates PSO or DOSO). Synergistic extraction Am Ln HBMPPT References Yu S N , Yang Y Z , Bao B R et al . J Nucl Radiochem (in Chinese) 1999 , 21 ( 1 ): 51 J Nucl Radiochem (in Chinese) Smith B F , Jarvinen G D , Jones M M . Solv Extr Ion Exch . 1989 , 7 ( 5 ): 749 Solv Extr Ion Exch Musikas C . In: Actinide/Lanthanide Separation, Proceedings of an International Symposium, Honolulu, Hawaii, 16-22 December, 1984 . Singapore : World Scientific Publishing , 1985 , 19 El-Reofy S A , Dessouky N A , Aly H F . Solv Extr Ion Exch , 1993 , 11 ( 1 ): 19 Solv Extr Ion Exch Ensor D D , Jarvinen G D , Smith BF . Solv Extr Ion Exch . 1988 , 6 ( 3 ): 439 Solv Extr Ion Exch Choppin G R . J Less-common Metals , 1983 , 93 : 323 J Less-common Metals Kenneth N . Solv Extr Ion Exch , 1993 , 11 ( 4 ): 729 Solv Extr Ion Exch O615.11, O652.62, TL283 1999-11-17 2000-08-01 2021-02-05 2000 Nuclear Science and Techniques 3 11