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:
Jul. 23, 2002
Filed:
Jul. 07, 2000
Applicant:
Inventors:
Andrei G. Fadeev, Santa Fe, NM (US);
Michael M. Meagher, Lincoln, NE (US);
Assignee:
The Board of Regents of the University of Nebraska, Lincoln, NE (US);
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
B01D 6/136 ;
U.S. Cl.
CPC ...
B01D 6/136 ;
Abstract
A novel process for the regeneration of PTMSP membranes is disclosed. The regeneration process includes washing a fouled PTMSP membrane with a solution containing at least about 50% butanol in water for a time sufficient to increase the flux and/or selectivity of the membrane. This regeneration process with a butanol containing solution significantly improves both the flux and selectivity of the PTMSP membrane and can regenerate the flux of the PTMSP membrane to the level of a previously unused membrane.