亚铁氰化钛钾离子交换反应动力学

详细信息

ION EXCHANGE KINETICS OF THE POTASSIUM TITANIUM HEXACYANOFERRATE

摘要: 测定了亚铁氰化钛钾 (KTiFC)交换剂的比表面积、孔隙率及颗粒内部孔径的分布规律 ,并测定了硝酸铯酸性溶液中铯的分配比 ,建立了有限浴条件下KTiFC离子交换反应动力学模型。计算结果表明 ,交换反应主要发生在交换剂颗粒外层 ,反应可以近似认为层进机理控制模型。该离子交换动力学模型与实验数据符合较好
- 铯 /
- 亚铁氰化钛钾(KTiFC) /
- 离子交换 /
- 动力学
Abstract: The specific surface, porosity and the pore size distribution of potassium titanium hexacyanoferrate are determined. The distribution ratio in the CsNO 3 acidic solution is investigated. The mathematical model for ion exchange kinetics in the solution of finite volume has been established. The calculated results show that ion exchange reaction mainly occurrs in the outer film of KTiFC. The ion exchange process is regarded as a shell progress reaction. The experimental results are in good agreement with the calculated values.
- cesium /
- KTiFC /
- ion exchange /
- kinetics

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