摘要
报道了吐温 (Tween) 80— (NH4 ) 2 SO4 —水的固液萃取体系中Au (Ⅲ )溴络阴离子AuBr4 -的萃取行为 ,H2 SO4 —NH4 Br介质中 ,该体系可定量萃取Au (Ⅲ ) ,而常见贱金属不被萃取 ,可用于从贱金属基体中分离金 ,对合成样及实际样品进行了萃取分离 ,并对机理进行了初步探讨。
The extraction of ammonium bromide (AuBr - 4)in Tween 80-(NH 4) 2SO 4-H 2O solid-liquid system was investigated.In the medium of H 2SO 4—NH 4Br,gold could be extracted quantificationally in above system but not for the base metal,thus,this method can be adopted for separating the gold from base metal based system.The extraction tests on the synthetic sample and actual sample were conducted and the preliminarily probe into separation mechanism was carried out.
出处
《云南冶金》
2000年第4期58-59,共2页
Yunnan Metallurgy
关键词
吐温80
液-固萃取
金
溴化铵
分离
Tween 80
liquid-solid extraction
gold
ammonium bromide
