Kinetics of Separating Magnesium Ions from Demagging Liquor of Phosphate Ore by Ion Exchange
离子交换分离磷矿脱镁废水中镁离子的动力学

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 0017 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.