摘要
测定了磷酸三丁酯－水－磷酸三元体系在２５℃和５０℃下的液液相平衡数据．应用Ｐｉｔｉｅｒ电解质溶液理论和Ｇｕｇｇｅｎｈｅｉｍ似晶格非电解质溶液理论，提出了该体系中有机相组分活度系数的计算方法，在关联出计算所需的模型参数的基础上，计算了该体系在２５℃下的活度系数值。
LLE Liquid - Liquid phase equilibrium data has been determined for the TBP--H2O - H3PO4 at 25t and 50℃. The calculated methed for activity coefficierts of organicphase in this system has been developed by using pitzer's electrolyte solution theory andGuggnhein quasi - laftice's nonelectrolyte solution theory. After the model paramater havebeen identified, the activity coefficients of the system have been calculated.
关键词
液液平衡
磷酸三丁酯
湿法
相平衡
水
净化
ternary LLE, tributyl phosphat, phosphoric acid water, pitzer equztion,guggenheirn equation
