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Effect of water droplet in solvent sublation
作者姓名:Peng Yu Bi  Hui Ru Dong  Nan Nan Wang
作者单位:College of Science, Beijing University of Chemical Technology, Beijing 100029, China
摘    要:Aqueous phase layer around bubble and water droplet are two additional processes in solvent sublation. In the dynamic process of mass transfer, they are always neglected, but they are very important in the investigation of thermodynamic equilibrium. In this paper, the effect of water droplet in solvent sublation was discussed in detail, and the previous mathematical model of solvent subaltion was improved. Matlab 6.5 was used to simulate the process of water droplets, and the comparison between the previous hypothesis and the improvement in this paper showed the superiority, especially in the investigation of thermodynamic equilibrium. Moreover, the separation and concentration of the complex compound dithizone-Co(Ⅱ) from aqueous phase to n-octanol by solvent sublation also proved the improved mathematical model was reasonable.

关 键 词:液层促集分离  水滴  数学模型  化学分析
收稿时间:5 November 2007
修稿时间:2007年11月5日

Effect of water droplet in solvent sublation
Peng Yu Bi, Hui Ru Dong,Nan Nan Wang.Effect of water droplet in solvent sublation[J].Chinese Chemical Letters,2008,19(5):623-626.
Authors:Peng Yu Bi  Hui Ru Dong  Nan Nan Wang
Institution:College of Science, Beijing University of Chemical Technology, Beijing 100029, China
Abstract:Aqueous phase layer around bubble and water droplet are two additional processes in solvent sublation. In the dynamic processof mass transfer, they are always neglected, but they are very important in the investigation of thermodynamic equilibrium. In thispaper, the effect of water droplet in solvent sublation was discussed in detail, and the previous mathematical model of solventsubaltion was improved. Matlab 6.5 was used to simulate the process of water droplets, and the comparison between the previoushypothesis and the improvement in this paper showed the superiority, especially in the investigation of thermodynamic equilibrium.Moreover, the separation and concentration of the complex compound dithizone-Co(Ⅱ) from aqueous phase to n-octanol by solventsublation also proved the improved mathematical model was reasonable.2008 Hui Ru Dong. Published by Elsevier B.V. on behalf of Chinese Chemical Society. All rights reserved.
Keywords:Solvent sublation  Water droplet  Mathematical model
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