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›› 2003, Vol. 3 ›› Issue (6): 523-527.

• 反应与分离 • 上一篇    下一篇

离子交换分离磷矿脱镁废水中镁离子的动力学

文衍宣,王励生,金作美   

  1. 广西大学化学化工学院
  • 出版日期:2003-12-20 发布日期:2003-12-20

Kinetics of Seperating Magnesium Ions from Demagging Liquor of Phosphate Ore by Ion Exchange

WEN Yan-xuan,WANG Li-sheng,JIN Zuo-mei   

  1. 广西大学化学化工学院
  • Online:2003-12-20 Published:2003-12-20

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被引次数

15

摘要： 用动边界模型积分方程描述了001′7树脂脱除磷矿脱镁废水中的Mg2+的有限浴交换动力学，得到了动力学总方程. Mg2+的交换过程属颗粒扩散控制，表观活化能为24.11 kJ/mol，[Mg2+]的表观反应级数为1.0.

关键词: 磷矿脱镁废水, 离子交换, 动力学

Abstract: An integrating equation of moving boundary model was used to describe the kinetics with changing bulk concentration of removing Mg2+ from demagging waste solution of phosphate ore by 001′7 resins. The general kinetical equation was obtained. The ion exchange process of Mg2+ is controlled by ion diffusion through particles. The apparent activation energy is calculated to be 24.11 kJ/mol, and the apparent reaction order of Mg2+ is 1.0.

Key words: demagging waste solution of phosphate ore, ion exchange, kinetics