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海水中液-固界面的台阶型动力学曲线 Ⅱ.液膜扩散-递进扩散-界面分级交换反应联合控制的复合模型理论
刘莲生, 张正斌, 蔡卫君, 潘纲, 杜恒清
青岛海洋大学海洋化学研究所 266003
摘要:
为定量解释海水中液-固界面的台阶型动力学曲线及其台阶的消长变化规律,在我们已提出的“液膜扩散和递进液膜扩散控制的复合模型”和“海水中液-固界面分级离子/配位子交换理论”基础上,吸取Crank的若干数学处理方法,进而提出适合于非稳态体系的“液膜扩散-递进扩散-界面分级交换反应联合控制的复合模型”。
关键词:  液-固界面  台阶型动力学曲线  复合模型
DOI：
分类号:
基金项目:国家自然科学基金资助,4890275号;国家教委博士点基金资助项目
A PLATEAU TYPE KINETIC CURVE OF INTERFACE BETWEEN LIQUID AND SOLID IN SEAWATER II. A COMPOSITE MODEL OF INHERENT LIQUID FILM DIFFUSION-PROGRESSIVE LAYER DIFFUSION-STEPWISE EXCHANGE REACTIONS COMBINATIVE CONTROL
Liu Liansheng, Zhang Zhengbin, Cai Weijun, Pan Gang, Du Hengqing
Institute of Marine Chemistry, Ocean University of Qingdao 266003
Abstract:
In order to quantitatively explain the plateau type kinetic curve of liquid-solid interface in seawater and derive the rules governing its variation, this article suggests using “A composite model of inherent liquid film diffusion-progressive layer diffusion combinative control", “Theory of interfacial stepwise ion/coordination particle exchange” and some part of Crank’s mathematic method to deduce “A composite model of inherent liquid film diffusion-progressive layer diffusion-stepwise exchange reactions combinative control". The model’s general equation is:

(For the equations please see the PDF file.)
Key words:  Solid-liquid Interface, A pelateau type kinetic curve, A composite model
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