Lanthanide and actinide extractions using functionalized cobalt bis(dicarbollide) ion derivatives substituted with metal ligating functions
- Nuclear Research Institute plc., 250 68 Rez near Prague, (Czech Republic)
- Institute of Inorganic Chemistry, Academy of Sciences of the Czech Republic, v.v.i. 250 68 Rez near Prague (Czech Republic)
Several extractants based on cobalt bis(dicarbollide) ion of formula [(1,2-C{sub 2}B{sub 9}H{sub 10})(1',2'- C{sub 2}B{sub 9}H{sub 11})-3,3'-Co(III)]{sup -} with covalently bonded CMPO group of general formulation [(Ph){sub 2}P(0)(CH{sub 2})C(0)N(H){sub n=0,1}] were prepared and tested for extraction of trivalent radionuclides. The compounds studied differ in mode of attachment of CMPO group to COSAN moiety. Compound 1 with diethylene glycol connector between the COSAN cage and CMPO group provided better extraction properties than compounds with direct attachment (2) and N-bridge connection of COSAN moiety to nitrogen of CMPO group (3a or 3b). The compounds allowed the use of a less-polar solvent mixture of hexyl-methylketone and n-dodecane, which could replace the polar and less environmentally friendly solvent nitrobenzene.
- Research Organization:
- Chemical Sciences Division, Oak Ridge National Laboratory (United States)
- OSTI ID:
- 21230357
- Resource Relation:
- Conference: ISEC 2008: International Solvent Extraction Conference on Solvent Extraction: Fundamentals to Industrial Applications, Tucson, AZ (United States), 15-19 Sep 2008; Other Information: Country of input: France; 10 refs; Related Information: In: Proceedings of ISEC 2008, International Solvent Extraction Conference - Solvent Extraction: Fundamentals to Industrial Applications, by Moyer, Bruce A. (ed.), 1740 pages.
- Country of Publication:
- United States
- Language:
- English
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