Publication Date:
2017-11-16
Description:
In the present study, ceramic supported copolyimide membranes were synthesized via the two-step thermal imidization method and applied to pervaporation recovery of amide solvents including dimethylformamide (DMF) and dimethylacetamide (DMAc). The prepared membrane demonstrated high resistant to the two amides under a wide range of concentration. Moreover, effects of operating parameters such as feed temperature, feed concentration on pervaporation performances of the membrane were investigated. The copolyimide membrane displayed optimum permeation flux of 210 and 402 g m −2 h −1 with corresponding separation factors of 66 and 175, respectively, for H 2 O/DMF and H 2 O/DMAc mixtures with a water concentration of 20 wt % at 333 K.
Print ISSN:
0930-7516
Electronic ISSN:
1521-4125
Topics:
Chemistry and Pharmacology
,
Process Engineering, Biotechnology, Nutrition Technology
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