一种新的A+B_1+B_2型铀(Ⅵ)三元协萃体系
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摘要: 研究了4,4'-癸二酰-双-(1-苯基-3-甲基-5-吡唑啉酮)(DBPMP)、磷酸三丁酯(TBP)及吡啶(Py)组成的三元体系从硝酸溶液中萃取铀(Ⅵ)的协同效应。用斜率法确定了三元协萃配合物的组成。计算了协萃反应的平衡常数。制备了固体三元协萃配合物,并对它作了元素分析、红外光谱(IR)及核磁共振( ̄1HNMR)等分析测试。Abstract: A NEW TERNARY SYNERGISTIC EXTRACTION SYSTEM FOR URANIUM(Ⅵ)DU JIASHENG(Department of Chemistry,Yunnan University,Kunming 650091)ABSTRACT The synergistic extraction for U(Ⅵ) from nitric acid solution is studiedied using 4,4'-decane-dioyl-bis-( 1- phenyl- 3-methyl- 5-pyrazolone)as chelate extractant,TBP and Pyridine as the firstand second neutral synergistic extractants. The constituent of the extracted complex is confirmedto be UO_2A·TBp·Py by the usual slope methed,The equilibrium constant of this ternary syner-gistic extraction reaction is evaluated. Elemental analyses,IR and ~1HNMR are made for the solidextracted compound isolated.Key words Ternary synergistic extraction 4,4'-decane-dioyl-bis-( 1- phenyl- 3-methyl-5-pyrazolone)TBP Pyridine Uranium(Ⅵ)
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[1] 1王文清.U(Ⅵ)的三元协萃.核化学与放射化学,1992,14(2):101.2杜家声.4,4'-癸二酰-双-(1-苯基-甲基-5-吡唑啉酮)对铀(Ⅵ)的萃取作用.核化学与放射化学,1985,7(3):182.3杜家声.4,4'-癸二酰-双-(1-苯基-甲基-5-吡唑啉酮)和TBP对铀(Ⅵ)的协同萃取,核化学与放射化学,1991,13(2):115.4杜家声.4,4'-癸二酰.-双-(1-苯基-甲基-5-吡唑啉酮)和中性磷萃取剂对铀(Ⅵ)的协同萃取.化学研究与应用,1992,4(1):65.5伊敏,王文清.协同萃取规律的研究(Ⅲ).核化学与放射化学,1982,4(4):193.6DeanJA.Lange’sHandbookofChemistry,ThirteenthEdition.Mcgraw-HillBookCompany,1985.5-55.7RaoGN,AroraHC.SolventExtractionofUranium(Ⅵ)With4-Acvl2,4-Dihydro5-Methvl2-phenyl3H-Pyrazol3-Ones,JInorgNuclChem,1977,39:2057.8DavidAT.MetalCOrnplexesofPyridine:InfraredandRamanSpectraWithParticularReferencetolsotopicLabellingStudies,coordChemRev,1990,104(2):251.9董学畅,刘复初,赵雁来.几种新的4-酰基吡唑啉酮类螯合剂的合成,化学学报,1983,41(9):848.
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