Supported catalysts and method for their production
AssigneeGallaher Limited
InventorsNoel J. Adair, Robert W. Carlisle, Michael E. Stubbs, John J. Rooney
Life of this patent
Estimating the term…
Abstract
A catalyst support can be made by co-precipitating copper aluminate from a solution containing copper and aluminium ions and converting the precipitate into solid, generally particulate, form. The catalyst preferably includes a redox couple and may include promoters. The catalyst is of particular value for the low temperature oxidation of carbon monoxide, especially in a smoking product filter.
Claims11
A method of making an oxidation catalyst comprising forming a solution containing copper ions and aluminum ions and causing formation of a gel precipitate of copper aluminate by adding a base to the solution, drying the gel, forming a shaped catalyst support from the gel, and depositing on the shaped support a catalytic material selected from the group consisting of transition metal oxides and materials that will form a redox couple with the copper of the support.
Dependencies are inferred from the claim text.