Tertiary-butylstyrene production
AssigneeEl Paso Products Company
InventorsGlen F. Crum, Samuel J. Paton
Life of this patent
Estimating the term…
Abstract
This invention provides an improved oxydehydrogenation process for the production of tertiary-butylstyrene which involves the contacting of a vapor phase mixture of tertiarybutylethylbenzene and oxygen with a novel coprecipitated aluminum-calcium-silicon-tungsten phosphate catalyst composition. The tertiary-butylstyrene is produced with a high conversion selectivity, and concomitantly there is little or no dialkenylbenzene byproduct produced.
Claims6
A process for the production of tertiary-butylstyrene under oxydehydrogenation conditions which comprises contacting a feed mixture of tertiary-butylethylbenzene and oxygen at a temperature in the range between about 350.degree. C. and 650.degree. C. with a coprecipitated aluminum-calcium-silicon-tungsten phosphate catalyst, wherein the aluminum:calcium:silicon:tungsten elements, respectively, are present in the catalyst in an atomic ratio of about 1-12:1-12:0.2-5:2-20, and wherein the conversion selectivity to tertiary-butylstyrene is at least 80 mole percent, and the conversion selectivity to dialkenylbenzenes is essentially zero mole percent.
Dependencies are inferred from the claim text.