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US 4,060,561 AGranted
Method for the preparation of trimethylhydroquinone
AssigneeContinental Oil Company
InventorCharles M. Starks
Life of this patent
Estimating the term…
Abstract
Trimethylhydroquinone is prepared by reacting 4-methoxyphenol with methanol over MgO or MgO promoted with oxides of aluminum, uranium, titanium, cerium, manganese, zinc, and iron at temperatures of from about 350.degree. C to about 550.degree. C and pressures up to about 1,000 pounds per square inch gauge.
Claims11
A method for the production of trimethyhydroquinone comprising reacting 4-methoxyphenol with methanol over catalysts selected from the group consisting of magnesium oxide and aluminum oxide at temperatures of from about 350.degree. C to about 550.degree. C at pressures of from about atmospheric to about 1,000 psig.
Dependencies are inferred from the claim text.