Equilibria for Adsorption of Phosphates in OH-Type Strongly Basic Ion Exchanger －Effect of Coexisting Ion －
The effect of the coexisting ion on equilibrium isotherms for adsorption of phosphates on an OH-type strongly basic ion exchanger, DIAION SA10A were studied experimentally in binary system of phosphates ions and chloride ions. The ion-exchange reaction models were then proposed. By applying the mass action law to the dissociation reactions of the adsorbates in the liquid phase and ion-exchange reactions, the theoretical equations for the adsorption isotherms were derived and the unknown equilibrium constants were determined. Experimental data were correlated well by proposed theoretical models and its behavior was affected by initial concentration of species. Selectivity of phosphates ions is lower than that of chloride ions and it is higher, as mole ratio of chloride ions is lower.
Adsorption Separation Ion Exchanger Phosphates
Hidemi Nakamura Yugo Furubayashi Choi Ikwon Hiroyuki Yoshida
Department of Chemical Engineering, Osaka Prefecture University 1-1 Gakuen-cho, Naka-ku, Sakai, Osaka 599-8531, Japan
国际会议
第四届中日化工学术研讨会(The 4th Joint China/Japan Chemical Engineering Symposium)(CJCES)
成都
英文
2007-12-19（万方平台首次上网日期，不代表论文的发表时间）