The separation of Co 2+ from Zn 2+ , Cd 2+ by anion exchange chromatography was discussed. The chromatographic column containing anion resin 201×7 which was saturated with a solution of ammonium chloride. The eff...The separation of Co 2+ from Zn 2+ , Cd 2+ by anion exchange chromatography was discussed. The chromatographic column containing anion resin 201×7 which was saturated with a solution of ammonium chloride. The effects of the eluant acidity and eluant composition on the separation were investigated. The results indicate that this anion exchange chromatography is suitable to the separation of Co 2+ from Zn 2+ , Cd 2+ , and the condition of separation is simple and convenient. When the column is saturated with NH 4Cl solution (2.0 mol/L, pH=4.0), the separation can be completed effectively. Zn 2+ and Cd 2+ can also be separa ted when different eluants are used and the pure solution with high concentration of Zn 2+ , Cd 2+ respectively can be obtained ea sily.展开更多
The flotation separation behaviour of Zn 2+ with ammonium thiocyanate malachite green water liquid solid system in the presence of sodiun nitrate and the conditions for the separation of Zn 2+ with other metal ions we...The flotation separation behaviour of Zn 2+ with ammonium thiocyanate malachite green water liquid solid system in the presence of sodiun nitrate and the conditions for the separation of Zn 2+ with other metal ions were studied.It is found that Zn 2+ can be separated from Ni 2+ ,Mn 2+ ,Fe 2+ ,Bi 3+ by flotation on certain condition.展开更多
文摘The separation of Co 2+ from Zn 2+ , Cd 2+ by anion exchange chromatography was discussed. The chromatographic column containing anion resin 201×7 which was saturated with a solution of ammonium chloride. The effects of the eluant acidity and eluant composition on the separation were investigated. The results indicate that this anion exchange chromatography is suitable to the separation of Co 2+ from Zn 2+ , Cd 2+ , and the condition of separation is simple and convenient. When the column is saturated with NH 4Cl solution (2.0 mol/L, pH=4.0), the separation can be completed effectively. Zn 2+ and Cd 2+ can also be separa ted when different eluants are used and the pure solution with high concentration of Zn 2+ , Cd 2+ respectively can be obtained ea sily.
文摘The flotation separation behaviour of Zn 2+ with ammonium thiocyanate malachite green water liquid solid system in the presence of sodiun nitrate and the conditions for the separation of Zn 2+ with other metal ions were studied.It is found that Zn 2+ can be separated from Ni 2+ ,Mn 2+ ,Fe 2+ ,Bi 3+ by flotation on certain condition.
