Phenolics methylation using a modified alumina catalyst

Details Phenolics methylation using a modified alumina catalyst Phenolics methylation using a modified alumina catalyst

1977-07-20

1978-11-21

Thomas, Jr., James O.

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

Organic compounds

Oxygen containing

C07C 3712

Patent

active

041267494

ABSTRACT:
Aluminas derived from aluminum alkoxide hydrolysis are calcined at 1150.degree.-1800.degree. F for a period of time ranging 0.5 to about 12 hours to develop specific pore volume and pore diameter characteristics prior to use as a catalyst in the vapor phase and liquid phase methylation of phenol, monosubstituted, and di-substituted phenols. The calcining at higher temperatures gives increased catalyst life, lower isomerization and disproportionation, and higher orthomethylation activity.

REFERENCES:
patent: 3624163 (1971-11-01), Del Bel et al.
patent: 3737466 (1973-06-01), Sharp et al.

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