Production of alkylaryl sulfonates including the step of...

Details Production of alkylaryl sulfonates including the step of... Production of alkylaryl sulfonates including the step of...

C - Chemistry, Metallurgy

07

C

260/705.2

C07C 5/333 (2006.01) B01J 23/48 (2006.01) B01J 23/66 (2006.01) B01J 23/89 (2006.01)

Patent

CA 1048554

PRODUCTION OF ALKYLARYL SULFONATES INCLUDING THE STEP OF DEHYDROGENATING NORMAL PARAFFINS WITH AN IMPROVED CATALYST Abstract of the Disclosure Methods for preparing detergent-type alkylaryl sulfo- nates include the steps of dehydrogenating normal paraffins to form mono-olefins, reacting the mono-olefins with a monocyclic aryl compound such as benzene, and sulfonating the resulting alkylaryl hydrocarbon. Dehydrogenation catalysts comprising one or more of Group IB metals, such as copper, and one or more noble metals of the platinum or palladium families, deposited on alumina are employed for the dehydrogenation of normal paraffins. It has been found that the formation of byproducts during the conversion of normal paraffins to mono-olefins is decreased when the Group IB metals and noble metals of the platinum or palladium families are deposited on alumina that has been calcined at a temperature of at least 800°C. to reduce the surface area of the alumina to between about 10 m2/g and about 150 m2/g.

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