The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Mar. 27, 1990
Filed:
May. 19, 1987
Koichi Hashimoto, Tokyo, JP;
Kohei Ninomiya, Ichihara, JP;
UBE Industries, Ltd., , JP;
Abstract
A process for the mutual separation of volatile components in a mixture comprising at least two volatile components, comprising the steps of: (1) heating a starting liquid comprising at least two volatile components to vaporize the starting liquid and form a vapor mixture comprising the volatile component, (2) compressing the vapor mixture to cause a rise in the temperature and pressure thereof, (3) applying the compressed vapor mixture to a membrane having a selective permeability to separate the vapor mixture into a membrane-permeated fraction and a non membrane-permeated fraction, (4) indirectly placing at least one of the fractions in contact with the starting liquid of step (1) via a heat transferring wall to use the heat of the contacted fraction to vaporize the starting liquid, and (5) recovering one or both of the membrane-permeated fraction and non membrane-permeated fraction; and an apparatus for a mutual separation of volatile components in a mixture comprising at least two volatile components, comprising: (1) an evaporator having at least one heat exchanger into which at least one fraction separated by a membrane separator of (3) is introduced, a starting liquid feeding side, an evaporation residue discharging side, and an optional auxiliary heater; to generate a vapor mixture, (2) a compressor to compress the vapor mixture, and (3) a membrane separator comprising a member having a selective permeability to separate the compressed vapor mixture into a membrane-permeated faction and a non membrane-permeated fraction.