磷矿脱镁废水中Mg^(2+)-NH_4^+交换动力学研究

Ion exchange Kinetics of Mg^(2+)-NH)_4^+ of Waste Solution from Demagging of Phosphorus Ore

研究了用对数经验模型描述磷矿脱镁废水中Mg2+在铵型强酸树脂(001×7树脂)上的离子交换动力学,Mg2+-NH+4交换过程是扩散控制,活化能为25.11kJ·mol-1。

The ion exchange kinetics of Mg 2+ -NH + 4 of waste solution from demmagging of phosphorus ore has been studied.A logarithmic empirical model can be used to describle the kinetics of Mg 2+ on strong acid ion exchange resin (001×7).The ino exchange processes of Mg 2+ are controlled by ion diffusion;the activation energy is calculated to be 25.11 kJ/mol.