Chemistry: electrical and wave energy – Apparatus – Electrolytic
Patent
1981-06-22
1983-11-22
Valentine, Donald R.
Chemistry: electrical and wave energy
Apparatus
Electrolytic
204129, 204265, 204266, 204270, 204277, 204278, 204290R, 204291, 204292, 204294, 204295, 204284, 502325, C25B 900, C25B 1112, B01J 2340
Patent
active
044167580
ABSTRACT:
An electrochemical cell used to separate gas from a gaseous mixture by reduction of said gas at the cathode and regeneration of said gas at the anode is characterized in that one or more substances formed during the cathodic reduction and/or the anodic regeneration is chemically converted, preferably by catalytic decomposition, to produce further quantities of said gas, the gas formed by both the anodic regeneration and the chemical conversion being recovered as the product. In an especially preferred embodiment a plurality of said cells are used in apparatus for extracting oxygen from the air by using a cathode comprising high surface area graphite powder which reduces oxygen to produce peroxyl ions, each cell being further provided, externally of the cathode compartment, with means for catalytically decomposing the peroxyl ions produced, suitable catalysts being CoFe.sub.2 O.sub.4 or NiCo.sub.2 O.sub.4.
REFERENCES:
patent: 3711397 (1973-01-01), Martinsons
patent: 3887696 (1975-06-01), Bernard et al.
patent: 3969201 (1976-07-01), Oloman et al.
patent: 4088604 (1978-05-01), Sermon
patent: 4131532 (1978-12-01), Chillier-Duchatel et al.
patent: 4132619 (1979-01-01), Klein et al.
patent: 4253922 (1981-03-01), Welch
patent: 4278525 (1981-07-01), Gestaut
patent: 4297333 (1981-10-01), Crawford et al.
patent: 4329209 (1982-05-01), Johnson
patent: 4381978 (1983-05-01), Gratzel et al.
Electrochimica Acta, 1976, vol. 21, p. 567, "Oxygen Reduction on Ultra Thin Carbon", by Appelby and Savy.
Electro-Analytical Chemistry and Interfacial Electro-chemistry, 42 (1973) 347, Taylor and Humffray, "Electrode-chemical Studies on Glassy Carbon Electrodes".
Jasem Sameer M.
Tseung Alfred C. C.
LandOfFree
Gas extraction does not yet have a rating. At this time, there are no reviews or comments for this patent.
If you have personal experience with Gas extraction, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Gas extraction will most certainly appreciate the feedback.
Profile ID: LFUS-PAI-O-1814058