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Received December 29, 2004
Accepted August 22, 2005
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This is an Open-Access article distributed under the terms of the Creative Commons Attribution Non-Commercial License (http://creativecommons.org/licenses/bync/3.0) which permits
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Mass transfer modeling of membrane carrier system for extraction of Ce(IV) from sulfate media using hollow fiber supported liquid membrane
Department of Chemical Engineering, Faculty of Engineering, Chulalongkorn University, Patumwun, Bangkok, 10330, Thailand 1Department of Chemical Engineering, Faculty of Engineering and Industrial Technology, Silpakorn University, Nakhon Pathom, 73000, Thailand
ura.p@chula.ac.th
Korean Journal of Chemical Engineering, January 2006, 23(1), 85-92(8), 10.1007/BF02705697
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Abstract
A theoretical and experimental study on the extraction and stripping of Ce(IV) ions from sulfate media using microporous hydrophobic hollow fiber supported liquid membrane has been performed. The experiments were made in the recycling mode. Tri-n-octylamine (TOA) was used as extractant diluted in kerosene and sodium hydroxide was use as strip solution. The mathematical model focused on the extraction side of a liquid membrane system. The aqueous feed mass transfer coefficient (ki) and the organic mass transfer coefficient (km) which were calculated from the model were 9.47×10.2 and 6.303 cm/s, respectively. Therefore, the rate controlling step is the diffusion of the cerium complex across a liquid membrane. In addition, the mass transfer modeling was performed and the validity of the developed model was evaluated with experimental data and found to tie in well with the theoretical value when the concentration of TOA was higher than 5% (v/v).
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References
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Rathore NS, Sonawane JV, Kumar A, Venugopalan AK, Singh RK, Bajpai DD, Shukla JP, J. Membr. Sci., 189(1), 119 (2001)
Schulz G, Desalination, 68, 191 (1988)
Fu SS, Mastuyama H, Teramoto M, Sep. Purif. Technol., 36, 17 (2004)
Lin SH, Juang RS, J. Membr. Sci., 188(2), 251 (2001)
Tompkins CJ, Michaels AS, Peretti SW, J. Membr. Sci., 75, 277 (1992)
Urtiaga AM, Ortiz MI, Salazar E, Irabien JA, Ind. Eng. Chem. Res., 31, 877 (1992)
Yi J, Korean J. Chem. Eng., 12(3), 391 (1995)
Yang XJ, Fane AG, J. Membr. Sci., 156(2), 251 (1999)
Yun CM, Prasad R, Sirkar KK, Ind. Eng. Chem. Res., 31, 1709 (1992)
