04978430 is referenced by 59 patents and cites 19 patents.

An improved method for dehydration and concentration of an aqueous solution containing an organic compound is disclosed. The solution is evaporated to produce a gaseous mixture comprising an organic compound vapor and a water vapor. The water vapor is selectively removed from the gaseous mixture by permeation through an aromatic polyimide gas separation membrane while the gaseous mixture being kept in contact with a surface on one side of the gas separation membrane at a temperature of 70.degree. C. or higher to obtain a gaseous mixture comprising the organic compound vapor and a reduced amount of a water vapor.

Title
Method for dehydration and concentration of aqueous solution containing organic compound
Application Number
7128818
Publication Number
4978430
Application Date
July 24, 1989
Publication Date
December 18, 1990
Inventor
Masayuki Kinouchi
Ichihara
JP
Kohei Ninomiya
Ichihara
JP
Shigeru Yamamoto
Ichihara
JP
Yoshio Asakura
Ichihara
JP
Kanji Nakagawa
Ichihara
JP
Agent
Frishauf Holtz Goodman & Woodward
Assignee
UBE
JP
IPC
B01D 13/00
B01D 3/00
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