Back to results
US 6,617,464 B2Granted
Production of 5-methylbutyrolactone from levulinic acid
AssigneeE. I. Du Pont de Nemours and Company
InventorLeo E. Manzer
Life of this patent
Estimating the term…
Abstract
A process for producing 5-methylbutyrolactone from levulinic acid utilizing an optionally supported metal catalyst is described. The catalyst has both a hydrogenation and a ring-closing function.
Claims15
A process for preparing 5-methylbutyrolactone comprising heating levulinic acid in the presence of hydrogen and a catalytic amount of a metal catalyst, said metal catalyst having both a hydrogenation and a ring-closing function, wherein the metal catalyst is selected from the group consisting of Group VIII of the Periodic Table of Elements.
Dependencies are inferred from the claim text.