Catalyst – solid sorbent – or support therefor: product or process – Catalyst or precursor therefor – Metal – metal oxide or metal hydroxide
Patent
1988-04-13
1990-05-01
Shine, W. J.
Catalyst, solid sorbent, or support therefor: product or process
Catalyst or precursor therefor
Metal, metal oxide or metal hydroxide
B01J 2106, B01J 2342, B01J 2344, B01J 2389
Patent
active
049218301
ABSTRACT:
A composition of matter comprising zirconia and Pt and/or Pd is prepared by a process comprising one step of treating Pt- and/or Pd-impregnated zirconia with a reducing gas, in particular free hydrogen, at a temperature of about 100.degree.-600.degree. C. Another composition of matter comprising zirconia and Pt and/or Pd is prepared by a process comprising the steps of impregnating a porous ceramic material (preferably a monolith) with a Zr compound, substantially decomposing the Zr compound to ZrO.sub.2, impregnating with Pt and/or Pd, drying/calcining, and reducing with a reducing gas, in particular free hydrogen, at a temperature of about 0.degree.-400.degree. C. Both compositions of matter are used as catalysts in a process for oxidizing CO to CO.sub.2, e.g. in a CO.sub.2 laser. Preferably, at least one iron compound is present as copromoter in these compositions of matter.
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"Celcor.RTM. Honeycomb Ceramic Catalyst Supports", Product Brochure of Corning Glass Works, Corning, NY.
Brandes K. K.
Phillips Petroleum Company
Shine W. J.
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