The vapor permeation of aqueous 2-PrOH mixtures was investigated by using the thermostable natural polymer, water soluble protein from thermophile Geobacillus thermodenificans DSM465, as one of the membrane components in a polymer blend. The cultured protein/Torlon poly (amide-imide) blended membranes preferentially permeated H2O from aqueous 2-PrOH by vapor permeation. Membranes containing the proteins from G. thermodenificans DSM465 were applied to the dehydration of aqueous 2-PrOH.
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Yoshikawa et al. (2004) studied this question.
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