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:
Jun. 06, 1978
Filed:
Apr. 18, 1977
Andrew D Babinsky, Chagrin Falls, OH (US);
Leo L Benezra, Mentor, OH (US);
Diamond Shamrock Corporation, Cleveland, OH (US);
Abstract
Disclosed is a method and apparatus for the concentration and purification of a cell liquor containing sodium or potassium hydroxide wherein the three compartment electrolytic cell has a porous catalytic anode, a porous asbestos diaphragm separating the anode compartment and a central compartment having a stratification network, a cation-exchange membrane separating the central compartment and a cathode compartment having cathode disposed therein such that an electrolyzing current may be passed between the anode and cathode. Hydrogen gas emanating from the cathode and anode compartments is fed into the porous catalytic anode to decrease the potential across the cell below the evolution potential for chlorine and coincidently reduce the power requirements of the cell, which is operated at elevated temperatures.