A study on liquid liquid extraction of cadmium based on KI ethanol in the presence of ammonium sulphate has been performed. It shows that the charged complex compound CdI 2- 4 could be easily extracted into the ethano...A study on liquid liquid extraction of cadmium based on KI ethanol in the presence of ammonium sulphate has been performed. It shows that the charged complex compound CdI 2- 4 could be easily extracted into the ethanol phase. Common ions such as Fe 3+ , Co 2+ , Ni 2+ , Mn 2+ , Zn 2+ , Al 3+ and Cr 3+ would not be extracted into the ethanol phase and Cd 2+ could be separated completely from them by mixture of 3.0 g (NH 4) 2SO 4 and 0.2 g KI in 10.0 mL 30%(volume fraction) ethanol solution at pH=1～5.展开更多
三正辛胺(TOA)萃取色谱法分离金属离子的研究已有报道,但分离钨、钼的研究还未见报道,本文根据 TOA 的石油醚溶液从水相中萃取钼、钨行为的差异,试验了以大孔树脂负载 TOA 的萃取色谱法分离钨、钼的条件。试验表明,在确定的条件下,能用...三正辛胺(TOA)萃取色谱法分离金属离子的研究已有报道,但分离钨、钼的研究还未见报道,本文根据 TOA 的石油醚溶液从水相中萃取钼、钨行为的差异,试验了以大孔树脂负载 TOA 的萃取色谱法分离钨、钼的条件。试验表明,在确定的条件下,能用于钢样中钨、钼的分离与测定,结果令人满意。展开更多
文摘A study on liquid liquid extraction of cadmium based on KI ethanol in the presence of ammonium sulphate has been performed. It shows that the charged complex compound CdI 2- 4 could be easily extracted into the ethanol phase. Common ions such as Fe 3+ , Co 2+ , Ni 2+ , Mn 2+ , Zn 2+ , Al 3+ and Cr 3+ would not be extracted into the ethanol phase and Cd 2+ could be separated completely from them by mixture of 3.0 g (NH 4) 2SO 4 and 0.2 g KI in 10.0 mL 30%(volume fraction) ethanol solution at pH=1～5.
