中华医学超声杂志

应用化学 ›› 1994, Vol. 0 ›› Issue (1): 1-6.

• 研究论文 •    下一篇

BPMOPP与1,10－菲咯啉对铈的协同萃取

刘建民, 杨汝栋, 彭万通, 刘易人   

  1. 兰州大学化学系 兰州 730000
  • 收稿日期:1992-12-16 修回日期:1993-08-18 出版日期:1994-02-10 发布日期:1994-02-10
  • 基金资助:
    国家自然科学基金资助课题

Synergistic Extraction of Cerium by BPMOPP and 1,10-Phenanthroline

Liu Jianmin, Yang Rudong, Peng Wantang, Liu Yiren   

  1. Department of Chemistry, Lanzhou University, Lanzhou 730000
  • Received:1992-12-16 Revised:1993-08-18 Published:1994-02-10 Online:1994-02-10

PDF

371

被引次数

7

摘要： 研究了1,2-双(1'-苯基-3'-甲基-5'-氧代吡唑-4'-基)-1.2-苯二酮(H2A)对盐酸介质中的萃取变价行为及与1.10菲咯啉(Phen)从盐酸及盐酸与甲酸钠缓冲溶液中对的协同萃取行为。斜率法测定协萃合物的组成为CeA·HA·Phen,求得了协萃平衡常数,萃取法制得了固态配合物,对其组成、UV、IR、1H NMR、TG-DTA进行了研究,讨论了协萃机理及萃合物的可能结构。

关键词: 双酰代吡唑酮, 菲咯啉, 铈, 协同萃取

Abstract: A novel acyclic β-diketone type quadridentate chelating agent,bis-(1'- phenyl-3'- methyl-5' oxopyrazol-4'- yl)phthaldione(BPMOPP,H2A) was synthesized from 1-phenyl-3-methylpyrazolone and o-phthalyl chloride. The valency behaviour of cerium ion and the synergistic extraction of cerium by BPMOPP and 1, 10-phenathroline from aqueous hydrochloric acid or hydrochloric acid and sodium formate buffer solution have been investigated. By using the slope analysis method the solid mixed ligand synergic adduct showed a constitution of CeA·HA·phen with an extraction equilibrium constant ks.e=1.21×10-2. All the compounds obtained have been characterized by elemental analvsis, UV, IR,1H NMR. and TG-DTA measurements. The molar conductivity of the complexes in chloroform was 0.1～0.2S·cm2/mol indicating that they are nonelectrolytes.

Key words: bis-acylpyrazolone, phenathroline, cerium, synergistic extraction

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