Chemistry: electrical and wave energy – Apparatus – Electrolytic
Patent
1977-04-18
1978-06-06
Andrews, R. L.
Chemistry: electrical and wave energy
Apparatus
Electrolytic
204266, 204296, 204DIG4, C25B 900, C25B 1308, C25B 500
Patent
active
040935310
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.
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Babinsky Andrew D.
Benezra Leo L.
Andrews R. L.
Diamond Shamrock Corporation
Winchell Bruce M.
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