酰代呲唑酮作为金属元素萃取剂的研究(Ⅱ)——不同基团取代的呲唑酮对于铈(Ⅲ)的萃取及其与二辛基亚砜的协同萃取作用

高等学校化学学报 ›› 1981, Vol. 2 ›› Issue (2): 139.

酰代呲唑酮作为金属元素萃取剂的研究(Ⅱ)——不同基团取代的呲唑酮对于铈(Ⅲ)的萃取及其与二辛基亚砜的协同萃取作用

顾翼东, 宋沅

复旦大学化学系

收稿日期:1980-06-06 出版日期:1981-04-24 发布日期:1981-04-24

STUDIES ON SYNERGISTIC EXTRACTION SYSTEMS INVOLVING ACYLPYRAZOLONES——Ⅱ——EXTRACTION OF CERIUM (Ⅲ) BY ACYLPYRAZOLONES WITH VARIOUS SUBSTITUTING GROUPS AND THE SYNERGISM WITH DIOCTYLSULFOXIDE

Gu Yidong(Ku Yih-tong), Song Yuan(Soong Yuan)

Department of Chemistry, Fudan University, Shanghai

Received:1980-06-06 Online:1981-04-24 Published:1981-04-24

摘要/Abstract

摘要： 本文研究了不同基团取代的酰代吡唑酮对铈(Ⅲ)的萃取。采用斜率法和同位素示踪技术,测得它们在HCl和HNO₃体系中的萃合物组成和萃取平衡常数;还研究了它们与二辛基亚砜对铈(Ⅲ)的协同萃取。研究过程中,以HTTA作为对照。

Abstract: Five different acylpyrazolones, with various substituing groups, were used to study the extractibility of Ce(Ⅲ) at pH 3.1 into chloroform. The extractive ability decreases in the following order: (HTTAwas also included for comparison).1-Phenyl, 3-methyl, 4-trifluoroacetyl pyrazolone(5) (HAPZ-8113F)>1-phenyl-3-phenyl, 4-benzoyl pyrazolone(5) (HAPZ-888)>1-phenyl, 3-methyl, 4-benzoyl pyrazolone(5) (HAPZ-818)>1-phenyl, 3-methyl, 4-acetyl pyrazolone(5) (HAPZ-811)>2-thenoyl trifluoroacetone(HTTA)>l-phenyl, 3-methyl, 4-formyl pyrazolone(5) (HAPZ-810)The reasons for introducing the above symbols in the above parentheses to represent the various extractants are explained.From the slope method, although HTTAin HCl gave the extracted species as CeA₃, various acyl pyrazolones gave CeA₂·Cl·HAin the same experimental conditions. In HNO₃ system, HAPZ-8113Fgave CeA₃ however.The logarithms of the extraction equilibrium constants calculated from the experimental data are: HAPZ-8113F/Cl-0.08, HAPZ-818/Cl^--0.82, HAPZ-811/Cl^- -2.57, HTTA/Cl^- -9.05, HAPZ-8113F/NO₃^--4.05. The extraction with HAPZ-810 is very slight.The synergistic effect, when dioctylsulfoxide DOSOwas used in conjunction with various acylpyrazolones, was also studied. The effectiveness of synergism, when expressed as the ratio, D_max(HA + S): D_HA, was in the order,HAPZ-8113F>HTTA>HAPZ-888>HAPZ-818.Radioactive ¹⁴⁴Ce as fracer added to natural cerium, was used throughout the experiment.

TrendMD:

顾翼东, 宋沅. 酰代呲唑酮作为金属元素萃取剂的研究(Ⅱ)——不同基团取代的呲唑酮对于铈(Ⅲ)的萃取及其与二辛基亚砜的协同萃取作用. 高等学校化学学报, 1981, 2(2): 139.

Gu Yidong(Ku Yih-tong), Song Yuan(Soong Yuan). STUDIES ON SYNERGISTIC EXTRACTION SYSTEMS INVOLVING ACYLPYRAZOLONES——Ⅱ——EXTRACTION OF CERIUM (Ⅲ) BY ACYLPYRAZOLONES WITH VARIOUS SUBSTITUTING GROUPS AND THE SYNERGISM WITH DIOCTYLSULFOXIDE. Chem. J. Chinese Universities, 1981, 2(2): 139.