Catalyst for oxidation of carbon monoxide
AssigneePhillips Petroleum Company
InventorsGary A. Delzer, John H. Kolts
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Abstract
A composition of matter comprising hydrotalcite Pt and Fe has been prepared by a process comprising the steps of impregnating hydrotalcite with Pt and Fe, followed by calcining and treatment with a reducing gas. The above composition of matter is used as catalyst in a process for oxidizing CO to CO.sub.2, e.g., in a CO.sub.2 laser. A process for preparing a composition of matter comprises the step of impregnating hydrotalcite with Pt and/or Pd at a pH of at least about 5.
Claims35
A composition of matter, which is active as a catalyst for the oxidation of carbon monoxide, comprising hydrotalcite as support material, platinum metal and iron oxide.
A process comprising the steps of
- (a) contacting a support material comprising hydrotalcite with a solution having a pH of at least about 5 and comprising at least one dissolved compound of at least one noble metal selected from the group consisting of platinum and palladium;
- and
- (b) heating the material obtained in step (a) under such conditions as to substantially dry said material in step (a) and to at least partially convert said at least one compound of at least one noble metal to at least one substance selected from the group consisting of oxides of Pt, oxides of Pd, Pt metal and Pd metal.
Dependencies are inferred from the claim text.