1-苯基-3-甲基-4-(α-呋喃甲酰基)-5-吡唑酮与氧化三正辛基膦对镧(Ⅲ)、铕(Ⅲ)的协同萃取

Synergistic Extraction of Lanthanum (Ⅲ ), Europium (Ⅲ) with 1 - Phenyl - 3 - Methyl - 4 - (α - Furoyl) - 5 - Pyrazolone and Trioctylphosphine Oxide

研究了１－苯基－３－甲基－４－（α－呋喃甲酰基）－５－吡唑酮（ＨＰＭＦＰ，简作ＨＡ）与氧化三正辛 基膦（ＴＯＰＯ）的氯仿溶液对Ｌａ（Ⅲ）、Ｅｕ（Ⅲ）的协同萃取行为，计算了体系的协萃系数Ｒ和酸性协萃系数ＲＡ．用 斜率法测得协萃合物的组成为：ＬａＡ３·ＴＯＰＯ和ＥｕＡ３·ＴＯＰＯ，计算了相应的协萃平衡常数，用萃取法制得了固 态协萃合物，并对其组成，ＩＲ进行了研究．

The synergistic extraction behavior of La (Ⅲ ), Eu (Ⅲ) with 1 - phenyl - 3 - methyl - 4 - (α -furoyl) - 5 - pyrazolone (HPMFP or HA) and trioctylphosphine oxide (TOPO) in chloroform has been studied. The synergistic coefficient (R) and acidic synergistic synergistic coefficient (RA) were calculated. By using slope analysis method, the compositions of the synergistic extracted spedes have been shown to be LaA3 .TOPO and EuA3. TOPO and the corresponding synergistic extraction equilibrium constants were determined. The solid synergistic extracted species has been isolated and characterized by using elemental analysis and IR.