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:
Nov. 05, 1991
Filed:
Jul. 12, 1990
Applicant:
Inventors:
Yoshiharu Aoki, Chiba, JP;
Toshikatsu Hamano, Chiba, JP;
Assignee:
Asahi Glass Company, Ltd., Tokyo, JP;
Primary Examiner:
Int. Cl.
CPC ...
B01D / ; B01D / ;
U.S. Cl.
CPC ...
210638 ; 210651 ; 21032175 ; 21032184 ;
Abstract
An apparatus for recovering an acid from an acid-containing waste liquor, which is a diffusion dialytic cell having a plurality of anion exchange membranes disposed to alternately form feed liquor compartments to which the acid-containing waste liquor is supplied and recovery compartments to which water is supplied, wherein a cooling compartment defined by a water-impermeable membrane is provided adjacent to such feed liquor compartments or recovery compartments.