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:
Sep. 13, 1988
Filed:
Mar. 15, 1985
Applicant:
Inventors:
Seiichi Manabe, Ibaraki, JP;
Hideki Iijima, Ibaraki, JP;
Assignee:
Asahi Kasei Kogyo Kabushiki Kaisha, Osaka, JP;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
B01D / ;
U.S. Cl.
CPC ...
210640 ; 210651 ; 210655 ; 21050029 ;
Abstract
A process for separating and condensing at least one selected organic liquid from a feed comprising a mixture thereof in the state of one phase or two phases which comprises conducting ultrafiltration by using a polymeric porous membrane having a mean pore size(2ra ) of at least 10.sup.-6 cm and a porosity (Pr) of at least 50% under the conditions that the effective pressure gradient (.DELTA.P/d) loaded on the polymeric porous membrane satisfies the following equations: