Hydrogenation process
AssigneeChevron Research Company
InventorJohn B. Wilkes
Life of this patent
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Abstract
A catalyst composition having an intrinsic surface area above about 60 square meters per gram as measured by the BET nitrogen adsorption method, said catalyst comprising from about 1 to 30 weight percent of a finely divided silica component, and from about 1 to 99 weight percent of a hydrogenating component comprising copper in either elemental or compound form and zinc oxide.
Claims3
A process for hydrogenating a feedstock containing a polyglycolide derived from glycolic acid, an aliphatic monocarboxylic acid ester, an aliphatic dicarboxylic diester of an alpha-hydroxy mono-carboxylic aliphatic acid ester to the corresponding alcohol which comprises contacting said feedstock under hydrogenation conditions with a catalyst composition having a BET intrinsic surface area above about 60 m.sup.2 /g;
- said catalyst composition comprising from about 1 to about 99 percent by weight of a hydrogenating component, said hydrogenating component comprising copper and zinc oxide, wherein the copper is in elemental, hydroxide, carbonate, hydroxycarbonate or oxide form, and said catalyst composition comprising from about 1 to about 30 percent by weight of silica, wherein the silica is incorporated in intimate admixture with the hydrogenating component substantially to increase the activity of the catalyst composition.
Dependencies are inferred from the claim text.