DHDECMP与酸性萃取剂HPMBP、HTTA对镅的协同萃取

摘要: 研究了ＤＨＤＥＣＭＰ－十氢萘－二甲苯在硝酸体系中对镅（Ⅲ）的萃取和酸性萃取剂ＨＰＭＢＰ及ＨＴＴＡ与ＤＨＤＥＣＭＰ对镅的协同萃取。结果表明，在ｐＨ＝１─３之间，浓度为０．３ｍｏｌ／１时，主要协同萃合物是Ａｍ（Ａ）＿２·ＮＯ＿３·ＨＡ·２ＤＨＤＥＣＭＰ（ＨＡ代表ＨＰＭＢＰ或ＨＴＴＡ）。ＤＨＤＥＣＭＰ与ＨＰＭＢＰ、ＨＴＴＡ协同萃取Ａｍ￣（３＋）的协萃系数分别为１０￣２─１０￣３和１０￣２─１０￣４。

Abstract: SYNERGISTIC EXTRACTION WITH DHDECMP AND ACIDIC EXTRACTANTS FOR AMERICIUMDang Haijun;Zhao Huanzhen;Lu Zhaoda(Nothwest Institute of Nuclear Technology，P.O. Box 69(17)，Xi’an 710024) Abstract:The extraction properties of Americium（Ⅲ）in the system of HNO_3using DHDECMP／de calin-xylene is studied．Acidic ligands HPMBP and HTTA are selected to study the synergistic extraction of Am~(3＋)，The results show that the main extract form is Am（A）_2·NO_3·HA·2DHDECMP（HAstands for HPMBP or HTTA）．The synergistic coeffients of DHDECMP with HPMBP and HTTA are 10~2～10~3 and 10~2～10~4 ， respectively.Keywords: DHDECMP HPMBP HTTA Americium Synergistic extraction