Stripping of uranium from an ionic liquid medium by TOPO-modified supercritical carbon dioxide
Science China-chemistry(2014)
摘要
UO 2 2+ , which is extracted from the aqueous phase into the 1-ethyl-3-methylimidazolium bis(trifluoromethylsulfonyl)imide (C 2 mimNTf 2 ) ionic liquid phase with octyl(phenyl)- N , N -diisobutylcarbamoylmethylphosphine oxide (CMPO), can be stripped by supercritical CO 2 . Trioctylphosphine oxide (TOPO), the modifier added to the supercritical CO 2 phase, enhances the stripping efficiency by up to 99%.
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关键词
UO22+,supercritical CO2,stripping,CMPO,ionic liquids
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