Process for preparation of 1,3-propanediol
AssigneeCargill, Incorporated
InventorsXiangsheng Meng, Timothy W. Abraham, Paraskevas Tsobanakis
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Abstract
Disclosed is a process for hydrogenating 3-hydroxypropionic acid, or esters thereof, or mixtures of the acid and the ester, in a liquid phase, in the presence of a ruthenium catalyst, alone, or in combination with at least one or more additional metal catalyst wherein the metal is molybdenum, tungsten, titanium, zirconium, niobium, vanadium, chromium, or mixtures of the metals.
Claims22
A process for preparing 1,3-propanediol comprising hydrogenating 3-hydroxypropionic acid in a liquid phase, in the presence of a catalyst comprising ruthenium.
A process for preparing 1,3-propariediol comprising hydrogenating 3-hydroxypropionic acid in a liquid phase, in the presence of a catalyst comprising a ruthenium catalyst and at least one or more additional metal catalyst(s).
A process for preparing 1,3-propanediol comprising hydrogenating a compound selected from the group consisting of 3-hydroxypropionic acid, a C1–C20 alkyl or a C1–C20 aryl ester of 3-hydroxypropionic acid, in a liquid phase, in the presence of a catalyst comprising ruthenium on a carbon support and an additional metal catalyst selected from the group consisting of molybdenum and a molybdenum oxide.
Dependencies are inferred from the claim text.