Study on droplet size in an agitated sieve-plate extraction column

被引：0
作者：
Yuan S.-F. [1 ]
Li Z.-P. [1 ]
Yin H. [1 ]
Chen Z.-R. [1 ]
机构：
[1] Zhejiang Provincial Key Laboratory of Advanced Chemical Engineering Manufacture Technology, College of Chemical and Biological Engineering, Zhejiang University, Hangzhou
来源：
Gao Xiao Hua Xue Gong Cheng Xue Bao/Journal of Chemical Engineering of Chinese Universities | 2021年 / 35卷 / 06期
关键词：
Correlation; Extraction column; Mean drop size; Solvent extraction; Two-phase flow;
D O I：
10.3969/j.issn.1003-9015.2021.06.005
中图分类号：
学科分类号：
摘要：
In order to determine operation performance of an agitated sieve-plate extraction column, droplet size in the column was studied. The mean droplet size data were obtained by photographic method, and the effects of rotor speed, continuous and dispersed phase flow rates, physical properties and mass transfer of solute on drop size were investigated. The results show that the droplet sizes become smaller with the increase of rotor speed, and increase with the increase of continuous and dispersed phase flow rates. Systems with higher interfacial tension or viscosity forms larger droplets, while systems with higher density difference forms smaller droplets. In addition, the concentration of solute in the column changes with the change of continuous and dispersed phase flow rates, since the existence of organic solute decreases the interfacial tension and therefore the droplet diameter changes. The experimental data were mathematically correlated, and the average deviation between the calculated results and the experimental results was 5.6%, which provides reference for engineering design of related columns. © 2021, Editorial Board of Journal of Chemical Engineering of Chinese Universities". All right reserved."
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页码：986 / 993
页数：7
相关论文
共 31 条
  • [1] FEI W Y., Solvent extraction technology for the 21st century, Chemical Industry and Engineering Progress, 19, 1, pp. 11-13, (2000)
  • [2] WU B H., New solvent extraction technique and application research in 21st century, Mechanical Management and Development, 25, 4, pp. 34-35, (2010)
  • [3] WICKER A P, CARLTON D D, TANAKA K, Et al., On-line supercritical fluid extraction-Supercritical fluid chromatography-mass spectrometry of polycyclic aromatic hydrocarbons in soil, Journal of Chromatography B, 1086, pp. 82-88, (2018)
  • [4] LIANG X, CHEN C, WANG W, Et al., Detection of 1,4-dioxane in water by membrane extraction-gas chromatography/differential mobility spectrometry, Chinese Journal of Chromatography, 32, 8, pp. 837-842, (2014)
  • [5] DAI Y Y., Fundamentals of liquid-liquid extraction, (2015)
  • [6] WANG J D, CHEN J Y., Handbook of solvent extraction, (2001)
  • [7] RAZZAGHI K, SHAHRAKI F., On the effect of phase fraction on drop size distribution of liquid-liquid dispersions in agitated vessels, Chemical Engineering Research & Design, 88, 7, pp. 803-808, (2010)
  • [8] TANG Q, ZHANG J, WU Y, Et al., An experimental study of immiscible liquid-liquid dispersions in a pump-mixer of mixer-settler, Chinese Journal of Chemical Engineering, 28, 1, pp. 33-45, (2020)
  • [9] QI L, MENG X, ZHANG R, Et al., Droplet size distribution and droplet size correlation of chloroaluminate ionic liquid-heptane dispersion in a stirred vessel, Chemical Engineering Journal, 268, pp. 116-124, (2015)
  • [10] KRAUME M, GABLER A, SCHULZE K., Influence of physical properties on drop size distribution of stirred liquid-liquid dispersions, Chemical Engineering Technology, 27, 3, pp. 330-334, (2004)
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