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- W2389182263 abstract "Polyion complex membranes were prepared and their pervaporation(PV) permeation and separation characteristics for dehydration of ethyl acetate aqueous solution were described.Fourier transform infrared spectrometry(FT-IR) spectra of chitosan(CS),alginate(SA) and CS/SA polyionic homogenous membranes were analyzed.The swelling of CS in ethyl acetate aqueous solution was inhibited with addition of SA.The swelling of CS in ethyl acetate aqueous solution increased with the increase of water concentration and decreased with the increase of SA concentration.The swelling of CS-SA/PAN polyion complex membranes containing 2% SA in coating solution reached 51% in 97% ethyl acetate aqueous mixture at 40℃.Results showed that CS-SA/PAN polyion complex membranes could be effectively dehydrated from ethyl acetate aqueous mixtures.The flux decreased and the separation factor increased with the increase of SA concentration in CS-SA/PAN polyion complex membranes.The flux of CS-SA/PAN polyion complex membrane containing 2% SA in coating solution reached 348g/(m2·h),separation factor 7245 in 97% ethyl acetate aqueous solution at 40℃.In addition,the flux increased and the separation factor decreased with the increase of water concentration in the ethyl acetate aqueous solution and the operation temperature.The relationship between the flux and the temperature had a good agreement with Arrhenius equation." @default.
- W2389182263 created "2016-06-24" @default.
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- W2389182263 date "2009-01-01" @default.
- W2389182263 modified "2023-09-24" @default.
- W2389182263 title "Pervaporation dehydration of ethyl acetate aqueous solution by chitosan-alginate/polyacrylonitrile polyion complex membranes" @default.
- W2389182263 hasPublicationYear "2009" @default.
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