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:
May. 31, 2005
Filed:
Jun. 11, 2003
Johannes G. Wijmans, Menlo Park, CA (US);
Richard W. Baker, Palo Alto, CA (US);
Anurag P. Mairal, Fremont, CA (US);
Johannes G. Wijmans, Menlo Park, CA (US);
Richard W. Baker, Palo Alto, CA (US);
Anurag P. Mairal, Fremont, CA (US);
Membrane Technology and Research, Inc., Menlo Park, CA (US);
Abstract
A process for treating mixtures of organic components, including azeotropic mixtures. The process includes a gas- or liquid-phase membrane separation step in conjunction with a dephlegmation step to treat at least a portion of the permeate vapor from the pervaporation step. The process yields a membrane residue stream, a stream enriched in the more volatile component as the overhead stream from the dephlegmator and a condensate stream enriched in the less volatile component as a bottoms stream from the dephlegmator. Any of these may be the principal product of the process.