2-羟基-4-仲辛基-二苯甲酮肟与三辛基氧化膦协同萃取钯(英文)  

Synergistic extraction of palladium (II) with 2-hydroxyl-4-sec-octyl-diphenylamine and trioctylphousphine oxide

作　　者：董彦杰[1] 

机构地区：[1]陇东学院化学系,甘肃庆阳745000

出　　处：《宝鸡文理学院学报（自然科学版）》2004年第2期106-109,131,共5页Journal of Baoji University of Arts and Sciences(Natural Science Edition)

基　　金：The L ongdong College Natural Science F oundation;Gansu;China(No.szzk0 2 0 2 )

摘　　要：研究了2-羟基-4-仲辛基-二苯甲酮肟在氯仿中萃取钯的行为及2-羟基-4-仲辛基-二苯甲酮肟与三辛基氧化膦协同萃取钯的行为。用斜率法确定了萃合物组成为PdL和PdL(TOPO)2。同时了计算平衡常数及热力学参数。实验结果表明,升高温度对2-羟基-4-仲辛基-二苯甲酮肟萃取钯及2-羟基-4-仲辛基-二苯甲酮肟与三辛基氧化膦协同萃取钯有利。Liquid-liquid extraction behavior of Pd(II) by the use 2-hydroxyl-4-sec-octyl- diphenylamine (abbreviated as H_2L) in trichloromethane has been investigated at 298.2 K. Under some conditions, the synergistic extraction behavior with 2-hydroxyl-4-sec-octyl- diphenylamine and trioctylphousphine oxide (TOPO) has also been studied. The slope analysis method shows that the composition of the extracted species are PdL and PdL(TOPO)_2. Equilibrium extraction constants and thermodynamic parameters were calculated. The results showed that increasing temperature is favorable to extraction of Pd(II) with 2-hydroxyl-4-sec-octyl- diphenylamine and more favourable to synergistic extraction with 2-hydroxyl-4-sec-octyl-diphenylamine and TOPO.

关 键 词：2-羟基-4-仲辛基-二苯甲酮肟 三辛基氧化膦 协同萃取 钯 斜率法 

分 类 号：O658.2[理学—分析化学]