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
The flotation separation behaviour of cadmium by sodium nitrate-potassium iodide-malachite green-water system and the conditions for the separation of cadmium with other metal ions were studied. The results showed tha...The flotation separation behaviour of cadmium by sodium nitrate-potassium iodide-malachite green-water system and the conditions for the separation of cadmium with other metal ions were studied. The results showed that Cd(Ⅱ) can be separated completely from Zn(Ⅱ)?Cu(Ⅱ)? Ni(Ⅱ) ?Mn(Ⅱ)?Fe(Ⅱ)?Co(Ⅱ)?Al(Ⅲ) by flotation at the optimum conditions.展开更多
研究了NaCl KI 罗丹明B液 固浮选分离镉(Ⅱ)的行为及其与常见离子分离的条件。结果表明,控制pH7.0,当固体NaCl用量为1.0g,0.1mol/LKI溶液和1.0×10-3mol/L罗丹明B溶液的用量分别为1.0mL、1.5mL时,Cd2+可被定量浮选,而Zn2+、Ni2+、M...研究了NaCl KI 罗丹明B液 固浮选分离镉(Ⅱ)的行为及其与常见离子分离的条件。结果表明,控制pH7.0,当固体NaCl用量为1.0g,0.1mol/LKI溶液和1.0×10-3mol/L罗丹明B溶液的用量分别为1.0mL、1.5mL时,Cd2+可被定量浮选,而Zn2+、Ni2+、Mn2+、Co2+、Al3+等离子在此条件下不被浮选,实现了Cd2+与这些离子的定量分离,并对合成水样中微量镉(Ⅱ)进行了定量浮选分离测定。展开更多
A study on liquidliquid extraction of palladium based on KIethanol in the presence of ammonium sulphate was performed.The results showed that PdI42- can be easily extracted into the ethanol phase.Common io...A study on liquidliquid extraction of palladium based on KIethanol in the presence of ammonium sulphate was performed.The results showed that PdI42- can be easily extracted into the ethanol phase.Common ions,such as Fe(Ⅲ),Al(Ⅲ),Zn(Ⅱ),Mn(Ⅱ),Ni(Ⅱ),Cr(Ⅲ),and Co(Ⅱ),could not be extracted into the ethanol phase and do not interfere with the determination of Pd(Ⅱ) at pH45.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.
文摘The flotation separation behaviour of cadmium by sodium nitrate-potassium iodide-malachite green-water system and the conditions for the separation of cadmium with other metal ions were studied. The results showed that Cd(Ⅱ) can be separated completely from Zn(Ⅱ)?Cu(Ⅱ)? Ni(Ⅱ) ?Mn(Ⅱ)?Fe(Ⅱ)?Co(Ⅱ)?Al(Ⅲ) by flotation at the optimum conditions.
文摘研究了NaCl KI 罗丹明B液 固浮选分离镉(Ⅱ)的行为及其与常见离子分离的条件。结果表明,控制pH7.0,当固体NaCl用量为1.0g,0.1mol/LKI溶液和1.0×10-3mol/L罗丹明B溶液的用量分别为1.0mL、1.5mL时,Cd2+可被定量浮选,而Zn2+、Ni2+、Mn2+、Co2+、Al3+等离子在此条件下不被浮选,实现了Cd2+与这些离子的定量分离,并对合成水样中微量镉(Ⅱ)进行了定量浮选分离测定。
文摘A study on liquidliquid extraction of palladium based on KIethanol in the presence of ammonium sulphate was performed.The results showed that PdI42- can be easily extracted into the ethanol phase.Common ions,such as Fe(Ⅲ),Al(Ⅲ),Zn(Ⅱ),Mn(Ⅱ),Ni(Ⅱ),Cr(Ⅲ),and Co(Ⅱ),could not be extracted into the ethanol phase and do not interfere with the determination of Pd(Ⅱ) at pH45.