Alkylation process
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United States of America Patent
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Apr 18, 2006
Grant Date -
Jan 30, 2003
app pub date -
Jan 29, 2001
filing date -
Jan 28, 2000
priority date (Note) -
Expired
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Abstract
A side-chain of a substituted aromatic compound is alkylated by reacting the aromatic compound with an alkylating agent in the presence of a catalyst. The catalyst comprises a restructured smectite clay to which basic ions are incorporated by ion-exchange. The restructuring of the smectite clay is carried out by acid-treating the clay prior to ion-exchange.
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