引用本文:
沈定米. 高分子冠醚的离子结合性质及其应用Ⅷ.酚醛型冠醚树脂在无机酸中络合铀的性能探讨[J]. 应用化学,
1986, 3(5): 75-78.
Citation: Shen Dingmi. ION ASSOCIATION PROPERTIES OF POLYMERIC CROWN ETHERS AND THEIR APPLICAT10NS Ⅷ. A STUDY ON THE COMPLEXATION OF PHENOL FORMALDEHYDE RESINS OF CROWN ETHERS WITH U(Ⅵ)[J]. Chinese Journal of Applied Chemistry, 1986, 3(5): 75-78.
Citation: Shen Dingmi. ION ASSOCIATION PROPERTIES OF POLYMERIC CROWN ETHERS AND THEIR APPLICAT10NS Ⅷ. A STUDY ON THE COMPLEXATION OF PHENOL FORMALDEHYDE RESINS OF CROWN ETHERS WITH U(Ⅵ)[J]. Chinese Journal of Applied Chemistry, 1986, 3(5): 75-78.
高分子冠醚的离子结合性质及其应用Ⅷ.酚醛型冠醚树脂在无机酸中络合铀的性能探讨
摘要:
用冠醚萃取铀(Ⅵ),铀(Ⅳ)有不少文献报道[1]。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[2]以及用二苯并-18-冠-6二元酸缩聚物及NaBH4还原产物络合铀[3]。本文报道冠醚树脂在几种无机酸中络合铀的行为。
English
ION ASSOCIATION PROPERTIES OF POLYMERIC CROWN ETHERS AND THEIR APPLICAT10NS Ⅷ. A STUDY ON THE COMPLEXATION OF PHENOL FORMALDEHYDE RESINS OF CROWN ETHERS WITH U(Ⅵ)
Abstract:
Some characteristic behaviours of phenol formaldehyde resins containing crown ether groups, PDB-18c6,PDB-24c8 and PB-15c5 towards U (Ⅵ)in inorganic acid medium such as HCl, H2SO4 and H3PO4 have been studied. It was shown that in hydrochloric acid medium the adsorption of U (Ⅵ) differs from that of U(Ⅵ). The difference may be used for separating uranium ions of different valency. Fe3+ ion was found to have inference on the adsorption of U (Ⅵ). The elution efficiency of U (Ⅵ) from the associated crown polymers by HCl decreases with increase of HCl concentration.γ-ray radiation with dosage up to 5×108 rad shown no effect on the stability of the crown-polymers studied.
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