화학공학소재연구정보센터
홈 로그인 로그아웃 연락처 사이트맵
Journal of Industrial and Engineering Chemistry, Vol.20, No.4, 1382-1387, July, 2014
DOI10.1016/j.jiec.2013.07.022  Export Citation
Dynamic light scattering studies on the aggregation behavior of tributyl phosphate and straight chain dialkyl amides during thorium extraction
Neelam Kumari, and P.N. Pathak†
  • Radiochemistry Division, Bhabha Atomic Research Centre, Trombay, Mumbai 400085, India
E-mail:
Dynamic light scattering (DLS) studies were carried out to investigate the aggregation behavior of 1.1 M solutions of tributyl phosphate (TBP), N,N-dihexyl octanamide (DHOA) and of N,N-dihexyl decanamide (DHDA) in n-dodecane equilibrated with varying concentrations of nitric acid (0.1-6 M) and of Th (10-200 g/L). There was a gradual increase in thorium extraction with increased aqueous phase acidities. A significant enhancement in the aggregate sizes was observed with increasing concentration of thorium in the organic phase. The effect of 1-octanol as phase modifier was also investigated on the aggregation behavior of extracted species for TBP system.
Keywords:Thorium;Third-phase;Dynamic light scattering;TBP;Dialkyl amides
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