The Chemours Company Fc, LLC

E.i. Dupont De Nemours and Company

Concetta Lamarca

Patricia Cheung

Allen Capron Sievert

A hydrogenation process is disclosed. The process involves reacting a fluoroolefin with Hin a reaction zone in the presence of a palladium catalyst to produce a hydrofluoroalkane product, wherein the palladium catalyst comprises palladium supported on a carrier wherein the palladium concentration is from about 0.001 wt % to about 0.2 wt % based on the total weight of the palladium and the carrier. Also disclosed is a palladium catalyst composition consisting essentially of palladium supported on &#x3b1;-AlOwherein the palladium concentration is from about 0.001 wt % to about 0.2 wt % based on the total weight of the palladium and the &#x3b1;-AlO. Also disclosed is a hydrogenation process comprising (a) passing a mixture comprising fluoroolefin and Hthrough a bed of palladium catalyst in a reaction zone wherein the palladium catalyst comprises palladium supported on a carrier; and (b) producing a hydrofluoroalkane product; characterized by: the palladium catalyst in the front of the bed having lower palladium concentration than the palladium catalyst in the back of the bed.

Catalytic hydrogenation of fluoroolefins, alpha-alumina supported palladium compositions and their use as hydrogenation catalysts

A hydrogenation process is disclosed. The process involves reacting a fluoroolefin with Hin a reaction zone in the presence of a palladium catalyst to produce a hydrofluoroalkane product, wherein the palladium catalyst comprises palladium supported on a carrier wherein the palladium concentration is from about 0.001 wt % to about 0.2 wt % based on the total weight of the palladium and the carrier. Also disclosed is a palladium catalyst composition consisting essentially of palladium supported on &#x3b1;-AlOwherein the palladium concentration is from about 0.001 wt % to about 0.2 wt % based on the total weight of the palladium and the &#x3b1;-AlO. Also disclosed is a hydrogenation process comprising reacting a fluoroolefin with Hin a reaction zone in the presence of a palladium catalyst to produce a hydrofluoroalkane product, characterized by: the palladium catalyst consisting essentially of palladium supported on &#x3b1;-AlOwherein the palladium concentration is from about 0.001 wt % to about 0.2 wt % based on the total weight of the palladium and the &#x3b1;-AlO. Also disclosed is a hydrogenation process comprising (a) passing a mixture comprising fluoroolefin and Hthrough a bed of palladium catalyst in a reaction zone wherein the palladium catalyst comprises palladium supported on a carrier; and (b) producing a hydrofluoroalkane product; characterized by: the palladium catalyst in the front of the bed having lower palladium concentration than the palladium catalyst in the back of the bed.

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Wilmington, DE, United States of America

Concetta Lamarca