摘要
用文献数据对理论部分[1]所导出的吸附计量置换模型(SDM—A)进行了检验,并对SDM—A的两种表达式(SDM-ACC和SDM—ARC)作了比较.结果表明该模型适用于这些吸附体系.从理想溶液及具有负偏差的非理想溶液中吸附时,以SDM—ACC为优,而从大多数具有正偏差的非理想溶液中吸附时则以SDM—ARC更佳.若在个别情况下这两种表达式不属线性方程时,则可用简化方法处理.用模型吸附参数q/Z或2n/Z值为依据所表征的理想与非理想吸附体系,不同于吸附剂自其中吸附的理想与非理想溶液.
The Stoichiometric Displacement Model of Adsorption (SDM-A)presented in the theoretical peper[1] is tested by using data published in literatUres, and the two expressions,SDMACC and SDM-RC,of the SDM-A are compared. It shows that SDM-A fits the data well,and that SDM-CC is superior to SDM-ARC for the adsorption from an ideal solution or non-ideal solution with a negative deviation and vice versa for the adsorption from most of the non-ideal solutions with a positive deviation. If the two expressions are not linear equations in few instances, a simplified method treating a.curve as several straight lines approximately is presented. The ideal and non-ideal adsorption systems described in this Paper based on the values of the adsorption parameter of q/z or 2n/z, are different from the ideal and non-ideal solutions which the adsorbents adsorb from.
关键词
二组分
液-固体系
吸附
置换
模型
参数
adsorption
model
binary component mixture in liquid-solid system