METHOD FOR THE PRODUCTION OF A SHELL CATALYST LOADED WITH PD AND/OR AU
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United States of America Patent
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Issued Date -
Oct 14, 2010
app pub date -
May 30, 2008
filing date -
May 31, 2007
priority date (Note) -
Abandoned
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Abstract
The present invention relates to a process for the production of a shell catalyst which comprises a catalyst support shaped body with an outer shell in which metallic Pd and/or Au is contained. In order to provide a process by means of which shell catalysts can be obtained, in the outer shell of which relatively high metallic Pd and/or Au contents are contained, a process is proposed comprising the steps of a) providing a porous catalyst support shaped body; b) providing a first solution in which a Pd and/or an Au precursor compound is contained; c) providing a second solution in which a Pd and/or a Au precursor compound is contained, wherein the first solution brings about a precipitation of the noble-metal component(s) of the second solution and the second solution a precipitation of the noble-metal component(s) of the first solution; d) loading the catalyst support shaped body with the first and with the second solution; e) converting the noble-metal component(s) precipitated on the catalyst support body into the metal form.
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