PMBP(1-苯基3-甲基-4-苯甲酰基吡唑酮-5)是萃取稀土、钛、锆、铀和钍等金属离子的优良萃取剂,国内外已有报导。为使PMBP能直接从含有易水解的铌、钽、钛和锆等溶液中萃取分离出稀土、铀和钍,我们曾研究在酒石酸等络合剂存在下用PMBP萃取铌、钽、钛、锆、钨、钼、铁、铀和稀土 PMBP (1-phenyl-3-methyl-4-benzoylpyrazolone-5) is an excellent extractant for extraction of rare earth metals such as titanium, zirconium, uranium and thorium. It has been reported at home and abroad. In order to enable PMBP to directly extract rare earths, uranium and thorium from solutions containing niobium, tantalum, titanium and zirconium which are easily hydrolyzed, we have studied the extraction of niobium, tantalum, titanium and zirconium with PMBP in the presence of complexing agents such as tartaric acid , Tungsten, molybdenum, iron, uranium and rare earths