Selective production of o-alkylphenols

Details Selective production of o-alkylphenols Selective production of o-alkylphenols

2005-01-25

2005-01-25

Shippe, Michael L. (Department: 1621)

Organic compounds -- part of the class 532-570 series

Organic compounds

Oxygen containing

C568S781000, C568S789000

Reexamination Certificate

active

06846962

ABSTRACT:
In a method for the production of o-alkyl phenols by conversion of phenol with an alkanol at elevated temperature in the gas phase in the presence of a metal catalyst, the conversion takes place in at least two stages wherein the alkanol/phenol molar ratio in each reaction stage is set to a value of approximately ≦0.4; a clear increase in the selectivity for the o-alkyl phenol is obtained.

REFERENCES:
patent: 3737466 (1973-06-01), Sharp et al.
patent: 27 56 461 (1979-06-01), None
patent: 1671655 (1991-08-01), None

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