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本文根据有关文献介绍三烷基氧磷(简称TRPO)为含磷的有机化合物,具有萃取铀、钍的特性。在1molL~(-1)HNO_3介质中萃取铀和钍,其分子式为UO_2(NO_3)_2·2TRPO和Th(NO_3)_4·TRPO;然后用草酸溶液反萃取钍,其络合物为Th(C-2O4)_4·6H_2O;再用混合络合剂反萃取铀。
According to the relevant literature, trialkylphosphine (referred to as TRPO) is a phosphorus-containing organic compound with uranium and thorium extraction characteristics. Uranium and thorium are extracted from 1molL ~ (-1) HNO_3 medium, and their molecular formula is UO_2 (NO_3) _2 · 2 TRPO and Th (NO_3) _4 · TRPO. Thorium is then back extracted with oxalic acid solution and its complex is Th -2O4) _4 · 6H_2O; followed by mixed complex back-extraction of uranium.