Separation of uranium from weak phosphoric acid using di-nonyl phenyl phosphoric acid in combination with tri-n-butyl phosphoric acid

International Journal of Nuclear Energy Science and Technology

Volumn 1, Issue 2-3, 2005, Pages 178-183

  Vijayalakshmi, R ^a   Mishra, S L ^a   Singh, Harvinderpal ^a  

^a BHABHA ATOMIC RESEARCH CENTRE   (India)

Author keywords

di nonylphenylphosphoric acid; phosphoric acid; solvent extraction; tri butyl phosphate; uranium

Indexed keywords

EID: 84857799912     PISSN: 17416361     EISSN: 1741637X     Source Type: Journal    
DOI: 10.1504/ijnest.2005.007140     Document Type: Article

References (7)

1. Brcic, I., Fatobic, I., Meles, S., Polla, E. and Radosevic, M. (1986) ‘Solvent extraction of uranium (VI) from industrial and analytical grade phosphoric acid using organic extractants in kerosene with variable content of aromatic hydrocarbons’, Hydrometallurgy, Vol. 18, p.117.
2. Bunus, F.T. (2000) ‘Uranium and rare earth recovery from phosphate fertilizer industry by solvent extraction’, Min. Proc. Ext. Met. Rev., Vol. 21, No. 2, p.381.
3. Singh, H. and Gupta, C.K. (2001) ‘Solvent extraction in production and processing of uranium and thorium’, Min. Proc. Extr. Met. Rev., Vol. 21, Nos. 1–5, p.307.
4. Singh, H., Mishra, S.L. and Vijayalakshmi, R. (2004) ‘Uranium recovery from phosphoric acid by solvent extraction using a synergistic mixture of di-nonyl phenyl phosphoric acid and tri-n-butyl phosphate’, Hydrometallurgy, Vol. 73, p.63.
5. Singh, H., Mishra, S.L., Anitha, M., Giriyalkar, A.B., Vijayalakshmi, R. and Kotekar, M.K. (2003a) ‘Uranium extraction from partially neutralised and diluted phosphoric acid using a synergistic organo-phosphorus solvent mixture’, Hydrometallurgy, Vol. 70, p.197.
6. Singh, H., Mishra, S.L., Vijayalakshmi, R., Giriyalkar, A.B. and Gupta, C.K. (2003b) Solvent Extraction Process for Recovery of Uranium from Phosphoric Acid, US Patent No. 6,645,453 B2, November 11.
7. Singh, H., Vijayalakshmi, R., Mishra, S.L. and Gupta, C.K. (2001) ‘Studies on uranium extraction from phosphoric acid using di nonyl phenyl phosphoric acid-based synergistic mixtures’, Hydrometallurgy, Vol. 59, p.69.