不同反离子类型D_(354)树脂吸附游离酸性能研究  

Studies on Adsorption Property of Free Acid in Different Kinds of Contra-ion with D_(354) Resin

作　　者：陈任宏[1] 吴桂贞[1] 唐省三[1] 陈炳稔[2] 

机构地区：[1]广东食品药品职业学院,广东广州510520 [2]华南师范大学化学与环境学院,广东广州510631

出　　处：《广州化学》2009年第4期25-30,共6页Guangzhou Chemistry

摘　　要：利用吸附质―分子探针-电导法,研究吸附过程的特性,讨论不同类型反离子的变形性和离子势对D354树脂吸附游离酸的影响。根据固―液相互作用方程求取吸附剂―吸附质相互作用能(U),实验结果表明,D354树脂吸附低浓度游离酸的过程遵循单分子层机理。吸附剂―吸附质相互作用能制约表观吸附速率常数(k),k、U两者存在线性相关性。The characteristic of adsorptive process was studied by adsorbate-molecular probeelectric conductance method. The influence of morphotropy and ionic potential in different kinds of contra-ion on adsorption was discussed with D354 resin. The adsorbent-adsorbate interaction energy was obtained by the interaction equation of the solid-liquid. The experimental results show that the adsorption of low concentration free acid with D354 resin obeyed the monomolecular adsorption mechanism. There is a linear interaction ship between the apparent adsorption rate constant and adsorbent-adsorbate interaction energy.

关 键 词：D354树脂 游离酸 吸附质-分子探针 表观吸附速率 吸附剂-吸附质 相互作用能 

分 类 号：TQ425.23[化学工程]