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. 17, 1991
Filed:
Aug. 14, 1989
Applicant:
Inventor:
Frederick P Chlanda, Rockaway, NJ (US);
Assignee:
Allied-Signal Inc., Morris Township, Morris County, NJ (US);
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
B01D / ;
U.S. Cl.
CPC ...
2041824 ; 2041826 ; 204131 ; 204301 ;
Abstract
The present invention is directed to a process for the separation of an aqueous solution of at least one amphoteric compound from an aqueous feed comprising the amphoteric compound including amino acids, and at least one salt. The process is conducted in an apparatus comprising at least one cell. The cell comprises at least one bipolar membrane each of which comprises a cation layer and an anion layer. Cells useful in the process of the present invention include arrangements with the bipolar membrane in combination with at least one cation membrane and/or at least one anion membrane.