Phosphorylated product made by heating alkylated phenol in presence of solid acid catalyst
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United States of America Patent
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Nov 26, 2002
Grant Date -
Sep 27, 2001
app pub date -
Apr 26, 2001
filing date -
Feb 2, 1999
priority date (Note) -
Expired
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Abstract
The isomerization of an alkylated phenol composition that contains an ortho-alkyl substituted phenol component to isomerize and reduce the level of ortho-alkyl substituted phenol component therein can be accomplished by heating that composition in the presence of a catalytically effective amount of a solid acid catalyst to carry out such isomerization and reduction in the level of ortho-alkyl substituted phenol. Examples of suitable solid acid catalysts can be selected from the H-form zeolites, the supported sulfonic acids, and the heteropoly acids. The resulting isomerized product can be subsequently phosphorylated.
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