【摘要】 本文研究了１－苯基－３－甲基－４－（α－呋喃甲酰基）－５－吡唑酮（ＨＡ）单独萃取Ｙ（Ⅲ）及其与二苯亚砜（ＤＰＳＯ），磷酸三丁酯（ＴＢＰ）或三辛基氧膦（ＴＯＰＯ）协同萃取Ｙ（Ⅲ）的行为。确定了萃合物的组成分别为ＹＡ＿３，ＹＡ＿３·ＤＰＳＯ，ＹＡ＿３·ＴＢＰ和ＹＡ＿２（ＮＯ＿３）·２ＴＯＰＯ．算得萃取平衡常数分别为：ｌｏｇＫ＿（Ａ（ＨＡ））＝－６．８６，１ｏｇＫ＿（ＡＢ（ＨＡ＋ＤＰＳＯ））＝－３．８９，ｌｏｇＫ＿（ＡＢ（ＨＡ＋ＴＢＰ））＝－２．５３和ｌｏｇＫ＿（ＡＢ（ＨＡ＋ＴＯＰＯ））＝５．１３．更多还原

【Abstract】 The synergistic extraction of Y（Ⅲ）with 1-phenyl-3-methyl-4-（αfuroyl）-pyrazolone-5（HA） and neutral extraction （DPSO, TBP or TOPO） wasstudied in this paper.The formulas of the synergistic extracted complexes have been shownto be YA₃ DPSO,YA₃ TBP and YA₂（NO₃）2TOPO respectively. And the synergistic ex-traction equililbrium constants were determined to be:log K_{AB（HA+DPSO）}=-3.89, logK_{AB（HA+TBP）}=-2.53 and logK_{AB（HA+TOPO）}=5.13 respectively.更多还原