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前面的报告研究了硝酸四丁基铵(TBAN)——甲基异丁基酮(MIBK)及硝酸四苯(钅申)(TPAsN)——甲基异丁基酮对UO_2(NO_3)_2的萃取行为,证明上述体系均属于离子缔合与中性络合协萃体系(简称BC类协萃体系),并且研究了它们的萃取机构。本文在此基础上,进一步试验了TBAN、TPAsN两种离子萃取剂与MIBK、醋酸丁酯(BuOAc)、醋酸戊酯AmOAc和环已酮四种中性萃取剂组合而成的八种混合萃取剂对硝酸氧铀的萃取行为,以求探寻BC类协同萃取的规律性。
The previous reports investigated the effect of TBAN and MIBK and TPAsN and methyl isobutyl ketone on the formation of UO_2 (NO_3) _2 The results show that all the above systems belong to the ion association and neutral complex system (referred to as BC system), and their extraction mechanism has been studied. Based on this, we further tested eight mixed extractants of TBAN and TPAsN with two kinds of neutral extractants, MIBK, BuOAc, AmOAc and cyclohexanone. On the uranyl nitrate extraction behavior, in order to explore the BC co-extraction of regularity.