Distillation: processes – separatory – Distilling to separate or remove only water – From organic compound
Patent
1987-08-26
1989-10-24
Bascomb, Wilbur
Distillation: processes, separatory
Distilling to separate or remove only water
From organic compound
203 17, 203 18, 203 19, 203 77, 159DIG27, 21050023, 210640, 210641, 435161, 549429, 564497, 568411, 568916, B01D 1300
Patent
active
048759805
ABSTRACT:
Disclosed is a method for separating and concentrating an organic component having a lower boiling point than water from an aqueous solution containing the organic component which comprises the steps of (1) bringing an aqueous solution containing an organic component having a lower boiling point than water into contact with one surface of a hydrophobic porous membrane, continuously or intermittently evacuating the side of the porous membrane opposite to the aqueous solution to obtain a concentrated vapor of the organic component, and liquefying the vapor; and (2) bringing the resulting concentrated aqueous solution into contact with one surface of a hydrophobic nonporous membrane, evacuating the side of the non-porous membrane opposite to the concentrated aqueous solution to obtain a further concentrated vapor of the organic component, and liquefying the vapor. When this method is applied, for example, to a continuous fermentation process, the fermentation can be continued with efficient removal of the fermentation product from the broth.
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Arita Masujiro
Sugimoto Yukinobu
Bascomb Wilbur
Mitsubishi Rayon Co. Ltd.
Mitsubishi Rayon Engineering Co. Ltd.
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