Journal
SOLVENT EXTRACTION AND ION EXCHANGE
Volume 19, Issue 6, Pages 1007-1015Publisher
MARCEL DEKKER INC
DOI: 10.1081/SEI-100107616
Keywords
Am; HBTMPDTP; TBP; synergistic extraction; lanthanides
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Distribution ratios of Ain and lanthanides (Pr, Nd, Eu) increase with pH value and decrease with lanthanide concentrations in aqueous phase, exhibiting a separation factor as high as 200 in presence of macro amount lanthanides. A countercurrent multistage extraction flowsheet was presented extracting with a mixture of purified Cyanex 301 and TBP. It consisted of 12 stages, 7 for extraction, 3 for washing and 2 for stripping the Am from lanthanides. With the flowsheet, > 99.998% of the Am was extracted. The product flow was only contaminated < 0.04% of the lanthanides.
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