用新合成的4-苯甲酰基-2,4-二氢-5-甲基-2-苯基-3H-吡唑硫酮-3 (HBMPPT) 作为萃取剂、三正辛基氧化膦 (TOPO) 作为协萃剂,研究其在硝酸介质中对三价镧系元素的萃取行为及温度、萃取剂浓度及酸度等各种影响因素对萃取分配比的影响,并对萃取配合物的化学组成及萃取机理进行了分析和讨论.
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