BARC/PUB/2002/0337

 
 

Recovery of americium from nitric acid solutions containing calcium by different co-precipitation methods

 
     
 
Author(s)

Charyulu, M. M.; Chetty, K. V.; Phal, D. G.; Sagar, V.; Naronha, D. M.; Pawar, S. M.; Swarup, R.; Ramakrishna, V. V.; Venugopal, V.
(FCD)

Source

Journal of Radioanalytical and Nuclear Chemistry, 2002. Vol. 251 (1): pp. 153-154

ABSTRACT

Recovery of americium from nitric acid solutions was studied by co-precipitation as hydroxide with various ions like calcium, ferric, nickel using sodium hydroxide and ammonium hydroxide. Studies were also carried out to recover americium using lanthanum fluoride and bismut h phosphate co-precipitation. All the methods are able to co-precipitate Am quantitatively. However, co-precipitation of Am with optimum co ncentration iron using  ammonia  is  found  to  be  better  from  nitric  acid  solutions  containing  large  concentrations  of  calcium  ions.  Approximately  2   g  of  Am  was recovered from 150 litres of solution batch wise using iron.

 
 
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