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:
Dec. 18, 1990
Filed:
Nov. 13, 1989
James R Sweet, Clearwater, CA;
Exxon Research and Engineering Company, Florham Park, NJ (US);
Abstract
A method for separating mixtures into a first fraction and a second fraction employing a combination of settling, ultrafiltration and permeate/retentate recycle to the settling zone is disclosed. A multi component feed stream is fed to a settling zone wherein it is permitted to separate into two major phases. At the interface of these two phases is an intermediate zone which is relatively equal in concentration of the component in the feed. A slip stream is drawn from the settling zone at this intermediate zone and fed to a membrane separation unit wherein the slip stream is separated into a retentate enriched in one component and a permeate enriched in the other component. The retentate is fed back to the settling zone to an area therein which has a high concentration of the component present in the retentate. The permeate is fed to the settling zone to an area therein which has a high concentration of the component present in the permeate. Two streams are recovered from the settling zone, a bottoms stream rich in one component and a top stream rich in a second component.
Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile