B - Operations – Transporting – 01 – J
Patent
B - Operations, Transporting
01
J
252/45, 252/89
B01J 23/02 (2006.01) B01J 23/58 (2006.01) B01J 27/053 (2006.01) B01J 37/02 (2006.01)
Patent
CA 1326232
ABSTRACT OF THE DISCLOSURE A catalyst comprises (a) an activated alumina, (b) a substantially water-insoluble bulk stabilizer present in an amount at least sufficient to stabilize the activated alumina against thermal degradation, and (c) one or more platinum group metal catalytic components. The bulk stabilizer may be one or more of strontium sulfate or, preferably, barium sulfate. A mixture of activated alumina (and/or activated alumina precursor) and bulk stabilizer particles, e.g., gamma-alumina particles and barium sulfate particles, may be slurried in an aqueous medium and coated onto a carrier substrate. One or more platinum group metal catalytic components may be dispersed onto the activated alumina, e.g., it may be dispersed onto a mixture of activated alumina and bulk stabilizer. The coated carrier substrate may be calcined in air to provide the catalyst.
572949
Engelhard Corporation
Sim & Mcburney
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