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:
Apr. 10, 1990
Filed:
Feb. 27, 1989
Applicant:
Inventors:
Yuko Imamura, Osaka, JP;
Hiroshi Matsuno, Osaka, JP;
Assignee:
Nitto Denko Corporation, Osaka, JP;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
B01D / ;
U.S. Cl.
CPC ...
210651 ; 210259 ;
Abstract
A liquid-solid particle sepation process is disclosed, which is characterized by comprising the repetition of feeding waste solution containing fine solid particles to a membrane-type separator and feeding at least part of the solution concentrated with particles therefrom back to the membrane-type separator on one hand while providing the concentrated solution to a centrifugal separator on the other. The process exhibits that the permeability of the membrane can be kept almost as good as in the beginning of filtering operation.