摘要
在298±1 K时以恒界面搅拌池法考察了Au(I)/(Na,H)Cl、CS(NH2)2/HDEHP(或HEHEHP)-煤油体系的萃取平衡和动力学过程.确定了萃取平衡机理为阳离子的交换,动力学过程的速控步骤可能发生在两相交界处,属于界面反应。
The extraction equilibrium and kinetics of glod ( I ) from aqueous thiourea and sodium chloride/di (2-ethylhexyl) phosphoric acid(HDEHP) or 2-ethylhexyl 2-ethylhexyl phosphonic acid(HEHEHP) in kerosene were investigated at 298±1 K. The mechanism of extraction equilibrium determined is the exchange of cation. The rate-determining step of kinetics may be occur at the interface between HDEHP and HEHEHP and belongs to interfacial reaction.
出处
《高等学校化学学报》
SCIE
EI
CAS
CSCD
北大核心
1992年第7期956-959,共4页
Chemical Journal of Chinese Universities
关键词
硫脲
HDEHP
HEHEHP
金
Au(Ⅰ), Thiourea, Extraction equilibrium kinetics, HDEHP, HEHEHP