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用冠醚萃取铀(Ⅵ),铀(Ⅳ)有不少文献报道。而用高分子冠醚络合铀则不多见。作者曾介绍高分子冠醚在苦味酸-乙醇体系中络合铀以及用二苯并-18-冠-6二元酸缩聚物及NaBH_4还原产物络合铀。本文报道冠醚树脂在几种无机酸中络合铀的行为。工作中试验了三种冠醚聚合物:二苯并-18-冠-6甲醛聚合物(PDB-18C6),二苯并-24-冠-8甲醛聚合物(PDB-24C8),以及苯并-15-冠-5-苯酚-甲醛聚合物(PB-
Crown ether extraction of uranium (Ⅵ), uranium (Ⅳ) There are many reports in the literature. With polymer crown ether complex uranium is rare. The authors have introduced the polymer crown ether in picric acid - ethanol system of complex uranium and dibenzo-18-crown-6 dicarboxylic acid polycondensate and NaBH_4 reduction product complex uranium. This paper reports the crown ether resin in several mineral acid complex uranium behavior. Three crown ether polymers were tested in the work: dibenzo-18-crown-6 formaldehyde polymer (PDB-18C6), dibenzo-24- crown-8 formaldehyde polymer (PDB-24C8) -15-crown-5-phenol-oxymethylene polymer (PB-