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Reverse osmosis separations for some alcohols and phenols in aqueous solutions using aromatic polyamide membranes

1974; Wiley; Volume: 18; Issue: 12 Linguagem: Inglês

10.1002/app.1974.070181214

1097-4628

Takeshi Matsuura, P. Blais, James M. Dickson, S. Sourirajan,

Membrane-based Ion Separation Techniques

Journal of Applied Polymer ScienceVolume 18, Issue 12 p. 3671-3684 Article Reverse osmosis separations for some alcohols and phenols in aqueous solutions using aromatic polyamide membranes Takeshi Matsuura, Takeshi Matsuura Division of Chemistry, National Research Council of Canada, Ottawa, Canada, K1A OR9Search for more papers by this authorP. Blais, P. Blais Division of Chemistry, National Research Council of Canada, Ottawa, Canada, K1A OR9Search for more papers by this authorJ. M. Dickson, J. M. Dickson Division of Chemistry, National Research Council of Canada, Ottawa, Canada, K1A OR9Search for more papers by this authorS. Sourirajan, S. Sourirajan Division of Chemistry, National Research Council of Canada, Ottawa, Canada, K1A OR9Search for more papers by this author Takeshi Matsuura, Takeshi Matsuura Division of Chemistry, National Research Council of Canada, Ottawa, Canada, K1A OR9Search for more papers by this authorP. Blais, P. Blais Division of Chemistry, National Research Council of Canada, Ottawa, Canada, K1A OR9Search for more papers by this authorJ. M. Dickson, J. M. Dickson Division of Chemistry, National Research Council of Canada, Ottawa, Canada, K1A OR9Search for more papers by this authorS. Sourirajan, S. Sourirajan Division of Chemistry, National Research Council of Canada, Ottawa, Canada, K1A OR9Search for more papers by this author First published: December 1974 https://doi.org/10.1002/app.1974.070181214Citations: 23AboutPDF ToolsRequest permissionExport citationAdd to favoritesTrack citation ShareShare Give accessShare full text accessShare full-text accessPlease review our Terms and Conditions of Use and check box below to share full-text version of article.I have read and accept the Wiley Online Library Terms and Conditions of UseShareable LinkUse the link below to share a full-text version of this article with your friends and colleagues. Learn more.Copy URL Share a linkShare onEmailFacebookTwitterLinkedInRedditWechat Abstract The performance of aromatic polyamide membranes for reverse osmosis separations of eight alcohol and four phenol solutes in dilute aqueous solutions has been studied. The Taft polar parameter σ* for the solutes studied were in the range of −0.3 to 1.388. Positive solute separations were obtained for each one of the solutes. In the σ* value range of −0.3 to 0, data on PR/PWP ratio scattered close to 1, and solute separation decreased with increase in σ*. For the phenol solutes, PR/PWP ratio decreased and solute separation increased with increase in σ*. The results are interpreted on the following basis. The aromatic polyamides are more nonpolar than cellulose acetates. In the σ* range of −0.115 to −0.3, solute separation is governed primarily by polar interactions; in this range, solute transport parameter DAM/Kδ is well correlated by the expression DAM/Kδ = C* exp (ρ*σ*). The solute separation for ethyl and methyl alcohol solutes (σ* = −0.1 and 0, respectively) is reduced by the nonpolar character of the membrane material. Positive solute separation for each of the phenolic solutes is due to preferential sorption of solute at the membrane-solution interface caused by both the nonpolar character of the membrane material and acidity of the solutes. References 1 T. Matsuura and S. Sourirajan, J. Appl. Polym. Sci., 15, 2905 (1971). 2 T. Matsuura and S. Sourirajan, J. Appl. Polym. Sci., 17, 1043 (1973). 3 T. Matsuura and S. Sourirajan, J. Appl. Polym. Sci., 17, 3661 (1973). 4 T. Matsuura and S. Sourirajan, J. Appl. Polym. Sci., 17, 3683 (1973). 5 T. Matsuura, M. E. Bednas, J. M. Dickson, and S. Sourirajan, J. Appl. Polym. Sci., 18, 2829 (1974). 6 T. Matsuura and S. Sourirajan, J. Appl. Polym. Sci., 18, 3593 (1974). 7 J. W. Richter and H. H. Hoehn, U.S. Pat. 3,567,632 (1971). 8 R. McKinney, Jr. and J. H. Rhodes, Macromolecules, 4, 633 (1971). 9 R. McKinney, Jr., Separation and Purification Methods, 1, 31 (1972). 10 R. McKinney, Jr., W. L. Hofferbert, and J. A. Carden, Research and Development Progress Report No. 886, Office of Saline Water, U.S. Department of the Interior, Washington, D.C., 1973. 11 E. S. K. Chian and H. H. P. Fang, Evaluation of New Reverse Osmosis Membranes for the Separation of Toxic Compounds from Water, paper presented at the 75th National Meeting of A.I.Ch.E., Detroit, Michigan, June 3–6, 1973. 12 P. Blais, D. J. Carlsson, L. H. Gan, T. Suprunchuk, and D. M. Wiles, Macromolecules, in press. 13 R. W. Taft, Jr., in Steric Effects in Organic Chemistry, M. S. Newman, Ed., Wiley, New York, 1956, pp. 556–675. 14 Handbook of Chemistry and Physics, C. H. Hodgman, R. C. Weast, and S. M. Selby, Ed., 43rd ed., Chemical Rubber Publishing Co., Cleveland, Ohio, 1961–62, pp. 764–1303. 15 H. Stephen and T. Stephen, Ed., Solubility of Inorganic and Organic Compounds, Vol. 1, Binary System, Part I, Pergamon Press, London, 1963, p. 479. 16 T. Matsuura and S. Sourirajan, J. Appl. Polym. Sci., 16, 2531 (1972). Citing Literature Volume18, Issue12December 1974Pages 3671-3684 ReferencesRelatedInformation