Stabilized flash calcined gibbsite as a catalyst support
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United States of America Patent
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Issued Date -
May 3, 2007
app pub date -
Oct 31, 2005
filing date -
Oct 31, 2005
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Abstract
A low cost support useful in chemical reactions and automotive arts is formed by rehydrating a flash calcined gibbsite in an aqueous acidic solution. The rehydrated support can be subsequently stabilized by doping with a stabilizing metal such as lanthanum. The alumina support has excellent thermal stability, high sodium tolerance, high activity with low precious metal loading, and high pore volume and surface area.
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