C - Chemistry – Metallurgy – 25 – B
Patent
C - Chemistry, Metallurgy
25
B
204/58
C25B 1/00 (2006.01) C25B 1/28 (2006.01) C25B 1/46 (2006.01)
Patent
CA 1068640
ABSTRACT OF THE DISCLOSURE Hydrogen peroxide is made electrolytically in a three- compartment cell having an anion-active permselective membrane separating anode and buffer compartments and a cation-active perm- selective membrane separating the buffer compartment and cathode compartment, by feeding sulfuric acid to the anode compartment, alkali metal sulfate to the buffer compartment and water to the cathode compartment and withdrawing substantially sulfate-free alkali metal hydroxide solution from the cathode compartment and per- sulfuric acid from the anode compartment, after which the persulfuric acid is hydrolyzed to produce hydrogen peroxide and sulfuric acid. The process is particularly useful for supplying hydrogen peroxide for use in wood pulping or pulp bleaching processes, especially in conjunction with chlorine dioxide bleaching, because alkali metal sulfate resulting from chlorine dioxide manufacture can be used as a reactant in the present process, a portion of the sulfuric acid produced in the present process may be used in the manufacture of chlorine dioxide, and the alkali metal hydroxide produced by the present process is also useful in pulping wood. - 1 -
217218
Eng Jeffrey D.
Harke Cyril J.
LandOfFree
Electrolytic production of hydrogen peroxide and alkali... does not yet have a rating. At this time, there are no reviews or comments for this patent.
If you have personal experience with Electrolytic production of hydrogen peroxide and alkali..., we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Electrolytic production of hydrogen peroxide and alkali... will most certainly appreciate the feedback.
Profile ID: LFCA-PAI-O-885270