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Pervaporation of Fluoroethano1 and Methacrylic Acid Aqueous Solution Through New Acid-resistant Poly(vinyl alcohol) Membranes  

Lee Soo-Bok (Interface Materials & Eng. Lab. Division of Advanced Chemical Technology, Korea Research Institute of Chemical Technology)
Ahn Sang-Man (Interface Materials & Eng. Lab. Division of Advanced Chemical Technology, Korea Research Institute of Chemical Technology, Department of Chemical Engineering, Chung-Nam National University)
Chang Bong-Jun (Interface Materials & Eng. Lab. Division of Advanced Chemical Technology, Korea Research Institute of Chemical Technology)
Kim Jeong-Hoon (Interface Materials & Eng. Lab. Division of Advanced Chemical Technology, Korea Research Institute of Chemical Technology)
Lee Yong-Taek (Department of Chemical Engineering, Chung-Nam National University)
Publication Information
Membrane Journal / v.15, no.3, 2005 , pp. 206-212 More about this Journal
Abstract
Acid-resistant poly(vinyl alcohol) (PVA) membranes connected with ethylene and ether groups were prepared via a thermal crosslinking reaction by varying the ratio of PVA to ethylene glycol diglycidyl ether (EGDE). The crosslinked membranes were characterized using FT-IR and swelling tests, respectively. Pervaporation behaviors with the PVA membranes were investigated for aqueous TFEA (2,2,2-trifluoroethanol) as a function of EGDE content and operating temperature. The pervaporation properties far MA (methacrylic acid)/water mixture were also carried out with the optimized PVA membrane. The PVA membranes prepared with EGDE showed more excellent acid-resistance than those crosslinked with gluaraldehyde. The membranes showed high permeation fluxes of 0.1 and $0.3\;km^2h$ and high separation factors of 100 and 900 in the $96\;wt\%$ TFEA and MA aqueous fred mixtures at high temperature above $80^{\circ}C$, respectively. These confirmed theses membranes could be used in esterification membrane reactor process for the production of 2,2,2-trifluoroethylmetacrylate (TFEMA).
Keywords
acid-resistant; poly(vinyl alcohol); ethylene glycol diglycidyl ether; pervaporation; 2,2,2-trifluoroethanol;
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1 L. Bagnell, K. Cavell, A. M. Hodges, A. W-H. Mau, and A. 1. Seen, The use of catalytically active pervaporation membranes in esterification reactions to simultaneously increase product yield, membrane permselectivity and flux, J. Memb. Sci., 85, 291 (1993)
2 H. Kita, K. Tanaka, K. Okamoto, and M. Yamamoto, The esterification of oleic acid with ethanol accompaniedby membrane separation, Chem. Lett. 456, 2053 (1987)
3 Q. Liu, Z. Zhang, and H. Chen, Study on the coupling of esterification with pervaporation, J. Memb. Sci., 182, 173 (2001)   DOI   ScienceOn
4 R. M. Waldburger and F. Widmer, Membrane Reactors in Chemical Production Processes and the Application to the Pervaporation-Assisted Esterification, Chem. Eng. Technol., 19, 117 (1996)
5 Y. Zhu and H. Chen, Pervaporation separation and pervaporation-esterification coupling using crosslinked PVA composite catalytic membranes on porous ceramic plate, J. Memb. Sci., 138, 123 (1998)
6 S. Irusta, M. P. Pina, M. Menendez, and J. Santamaria, Development and application of perovskitebased catalytic membrane reactors, Catalysis Lett., 54, 69 (1998)
7 S. M. Ahn, J. W. Ha, J. H. Kim, Y. T. Lee, and S. B. Lee, Pervaporation of fluoroethanol/water and methacrylic acid mixtures through PVA composite membranes, J. Membrane Sci., 247, 51 (2005)
8 B. Chemseddine and R. Audinos, Use of ion-exchange membranes in a reactor for esterification of oleic acid and methanol at room temperature, J. Memb. Sci., 115, 77 (1996)
9 W. J. Onset, R. G. Minet, and T. T. Tsotsis, Design of Membrane Reactors for Dry Reforming of Methane for the Production of Hydrogen, Ind. Eng. Chem. Res., 40, 242 (2001)   DOI   ScienceOn
10 J. N. Armor, Applications of catalytic inorganic membrane reactors to refinery products, J. Membrane Sci., 147, 217 (1998)
11 M. O. David, Q. T. Nguyen, and 1. Neel, Pervaporation membranes endowed with catalytic properties, based on polymer blends, J Memb. Sci., 73, 129 (1992)
12 K. K. Sirkar, P. V. Shanbhag, and A. S. Kovvali, Membrane in a reactor: A Functional Perspective, Ind. Eng. Chem. Res., 38, 3715 (1999)   DOI   ScienceOn