Pressure activation of magnesium oxide catalysts

Details Pressure activation of magnesium oxide catalysts Pressure activation of magnesium oxide catalysts

1982-06-28

1983-11-29

Wright, William G.

Catalyst, solid sorbent, or support therefor: product or process

Catalyst or precursor therefor

Sulfur or compound containing same

502340, B01J 2702, B01J 2110

Patent

active

044180055

ABSTRACT:
A titanium oxide/magnesium sulfate/magnesium oxide catalyst which is an ortho-selective methylation catalyst can be made to exhibit higher conversion and activity index for phenol methylation by the application of pressure. The pressure can be applied throughout the methylation period or can be applied for a short time at the beginning of the methylation period and then ceased, while higher activity continues. The pressure activation effects are assisted by the presence of phenol, methanol and/or water.

REFERENCES:
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patent: 3446856 (1969-05-01), Hamilton
patent: 3479410 (1969-11-01), Hamilton
patent: 3873628 (1975-03-01), Sorge
patent: 3959394 (1976-05-01), Tasaka et al.
patent: 3972836 (1976-08-01), Sorge
patent: 3974229 (1976-08-01), Sorge
patent: 4093536 (1978-06-01), Heckelsberg
patent: 4258220 (1981-03-01), Leach et al.
patent: 4269735 (1981-05-01), Leach
patent: 4283573 (1981-08-01), Young

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