B - Operations – Transporting – 01 – J
Patent
B - Operations, Transporting
01
J
252/52.B
B01J 23/00 (2006.01) B01J 23/34 (2006.01) B01J 37/00 (2006.01) F24C 15/00 (2006.01)
Patent
CA 1042414
ABSTRACT OF THE DISCLOSURE A catalyst composition for coating surfaces of cooking devices exposed to cooking residues is disclosed. The composition contains (1) from about 10-94% by weight of a catalytic metal oxide selected from the group consisting of the oxides of cobalt, chromium, iron, nickel, manganese, copper, zinc, the rare earths, and mixtures thereof in the form of particles having a size of less than 35 microns and said oxide having a surface area of about 5-150 square meters per gram, with the proviso that when the oxide is manganese oxide from 0-80% by weight of said oxide can have a surface area in excess of about 150 square meters per gram; (2) at least 1% by weight on a dry basis of an alkaline silicate, said alkaline silicate being in the form of an aqueous solution; and (3) from about 0-20% by weight of a carbonate or hydroxide of one or more metals of said catalytic metal oxides when the catalytic metal oxide of (1) is manganese oxide and from about 1-20% by weight of the carbonate or hydroxide when the catalytic metal oxide of (1) is other than manganese oxide. Surfaces coated with the disclosed composition effect rapid decomposition and oxida- tion of cooking residues at temperatures of about 204°C. and lower. - 1 -
227308
E.i. Du Pont de Nemours And Company
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