Silica-titania hydrocarbon conversion catalyst
AssigneeAristech Chemical Corporation
InventorsLeonard A. Cullo, Francis J. Shiring, III
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Abstract
Crystalline silica-titania catalyst compositions, optionally containing magnesium, are disclosed; the titanium is introduced through the use of organo-titanate chelates wherein the titanium has a coordination number of at least 5. The compositions are used in acid-catalyzed reactions such as alkylation reactions.
Claims1
Method of methylating phenol comprising reacting phenol and methanol in the presence of a calcined crystalline titania-magnesia-silica catalyst having molar ratios of 0.015 to 0.04 TiO.sub.2 and 0.08 to 0.17 MgO to 1.0 SiO.sub.2, and an X-ray diffraction pattern characterized by peaks as follows:
- ______________________________________ 2.theta. d(A) I/Io .times. 100 ______________________________________ 7.75 11.39 49 8.30 10.64 13 8.70 10.16 100 13.70 6.46 13 ______________________________________
- at a temperature of from about 300.degree.-450.degree. C., a pressure of about 1 to about 5 atmosphere and at a rate of feed no greater than about 1.5 grams of feed per gram of catalyst per hour.
Dependencies are inferred from the claim text.