Catalyst for preparation of ortho-alkylated phenols

Details Catalyst for preparation of ortho-alkylated phenols Catalyst for preparation of ortho-alkylated phenols

1976-01-22

1978-06-27

Dees, Carl F.

Compositions

Preservative agents

Anti-oxidants or chemical change inhibitants

252475, B01J 2900, B01J 2110

Patent

active

040974111

ABSTRACT:
This invention is for a shaped, alkylation catalyst comprising magnesium oxide bonded with silica and to the use of the catalyst in a process for the ortho-alkylation of phenols. The process comprises the vapor phase reaction of a non-ortho-substituted phenol with an alcohol in the presence of a catalyst. The catalyst of the invention is an improvement over prior art catalysts used for ortho-alkylation of phenols as it substantially increases reaction selectivity, eliminates loss of catalyst arising with the use of powders or weakly sintered composites and has a substantially extended useful life.

REFERENCES:
patent: 2399261 (1946-08-01), Thomas
patent: 2544869 (1951-03-01), Webb et al.
patent: 2800517 (1957-07-01), Romanovsky et al.
patent: 3446856 (1969-05-01), Hamilton

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