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:
Jan. 26, 1982
Filed:
Oct. 31, 1980
Applicant:
Inventor:
Walter R Wills, Cedar Knolls, NJ (US);
Assignee:
Engelhard Minerals & Chemicals Corporation, Edison, NJ (US);
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
B01D / ;
U.S. Cl.
CPC ...
2041 / ; 2041 / ; 2042 / ; 204301 ; 2103211 ; 2103212 ;
Abstract
A perm-selective membrane is used in an electrokinetic cell of an electrically augmented vacuum filter (EAVF) to prevent the migration of anions from the anode and optionally cathode compartments. The perm-selective membrane in the form of a film laminated to a support grid effectively prevents migration of anions into the filter cake and migration of fine particle solid to be filtered from the slurry into the anolyte and/or catholyte.