Catalytic mixture and method of use therefor
AssigneeColonial Metals, Inc.
InventorsRonald F. Davies, George J. Benvegno
Life of this patent
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Abstract
A pressurized aerosol package contains a metal-containing catalytic mixture of the type used in catalytic heaters. The mixture could contain, for example, chloroplatinic acid, with other materials, such as aluminum oxide, dextrose and triethanolamine all dissolved and mixed in water. In use, the mixture is sprayed onto, and impregnates, expended carrier pads of catalytic heaters to revive the pads and permit continued use of the heaters. In addition, the mixture can be sprayed into the exhaust system of an operating engine to coat the inner walls of the muffler of the system for antipollution purifying purposes.
Claims7
A method of rejuvenating a spent catalyst-coated surface, comprising the steps of:
- applying to said surface an aqueous composition selected from the group consisting of (1) chloroplatinic acid, a high surface refractory, dextrose, and triethanolamine, (2) chloroplatinic acid and sodium citrate, (3) ammonium chloroplatinite and dimethyl form amide;
- and
- heating the applied mixture, whereby a catalyst which has lost its catalytic activity in service may be rejuvenated.
Dependencies are inferred from the claim text.