摘要
二烃基硫醚是HCI溶液中萃取Au和Pd极好的萃取剂,萃取能力强,选择性高.二烃基(芳基)硫醚的萃取行为受极性和空间取代基效应的控制.分配数据表明,其萃合物组成分别为AuCl_3·R_2S和PdCl_2R_2S.
A systematic study of the structural effects of dialkyl (aryl) sulfides on the extraction equilibra of Au(Ⅲ) and Pd(Ⅱ) are reported. Dialkylsulfides are excellent extractants with high capacities and selectivity for Au and Pd from HCl solution. The extraction behavior of dialkyl (aryl) Sulfides may be controlled by polar and steric substituents effects. The distribution data suggested that the extracted species were AuCl_3·R_2S and PdCl_2·2R_2S respectively.
出处
《贵金属》
CAS
CSCD
北大核心
1989年第2期1-8,共8页
Precious Metals
关键词
二烃基硫醚
化学结构
金
钯
萃取
Gold
Palladium
Liquid-liquid extraction
Sulfer ether
