Effect of temperature on isopropyl acetate production reaction using cross linked SPEK/ PVA-silica nanocomposite membrane
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1Department of Chemical Engineering, Shahreza Branch, Islamic Azad University, P.O. Box 311-86145, Shahreza, Iran
2Department of Chemical Engineering, Shahreza Branch, Islamic Azad University, P.O. Box 311-86145, Shahreza, Iran, Tel. +98 321 3292242; Fax: +98 265 2423898
Polyetherketone (PEK) is a thermally stable polymer that shows excellent mechanical stability in aqueous environment. For dehydration purpose, membrane materials should display enough affinity for water. So that, in this study, a cross-linked sulfonated polyetherketone/poly(vinyl alcohol) /silica nanocomposite (with 10 wt.%) membrane was prepared by solution casting method and used in pervaporation dehydration of isopropyl acetate reaction mixture, in a batch mode. The property of the membrane was investigated by scanning electronic microscopy (SEM). The effect of the temperature was investigated on the pervaporation performance. Results showed that with an increase in the temperture, the acid conversion as well as the separation factors and the water permeance rates were increased. Maximum conversion rate was obtained for initial alcohol/acid molar ratio of 4:1, at 60 °C.