Studies on Novel Acrylic Acid Crosslinked Chitosan Pervaporation Membrane(Ⅱ)──Pervaporation Separation of Ethanol-Water Mixtures

Abstract

Abstract: Anovel acrylic acid crosslinked chitosan membrane was prepared through a homogeneous solution reaction and its pervaporation separation properties of ethanol/water mixtures were investigated.The selectivity of chitosan membrane was remarkably improved by crosslinking in the separation of ethanol/water mixtures and it highly depends on the preparing conditions and increased with temperature increasing.When the ethanol in feed is above 50% (percentage by weight),the water in permeate is no less than 98%.

Key words: Crosslinking chitosan, Pervaporation, Acrylic acid, Ethanol/water mixture

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ZHONG Wei, LI Wen-Jun, GE Chang-Jie, CHEN Xin. Studies on Novel Acrylic Acid Crosslinked Chitosan Pervaporation Membrane(Ⅱ)──Pervaporation Separation of Ethanol-Water Mixtures[J]. Chem. J. Chinese Universities, 1996, 17(8): 1327.

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Studies on Novel Acrylic Acid Crosslinked Chitosan Pervaporation Membrane(Ⅱ)──Pervaporation Separation of Ethanol-Water Mixtures

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