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US 2022/0242807 A1Published application
Selective hydrogenation of alkynes to alkenes in the presence of a phosphorus compound and an organic sulphur compound
AssigneeDsm IP Assets B.V.
InventorsJonathan Alan MEDLOCK, Lise Malika MOLINARI
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Abstract
The present invention relates to a process of hydrogenating an alkyne selectively to an alkene by hydrogen using a hydrogenation catalyst which is palladium supported on a carrier in the presence of an additive mixture of an organic phosphorus compound (AP) and an organic sulphur compound (AS).
Claims15
A process of hydrogenating an alkyne selectively to an alkene using a hydrogenation catalyst which is palladium supported on a carrier in the presence of an additive mixture of
- at least one additive (AP) which is an organic phosphorus compound;
- and
- at least one additive (AS) which is an organic sulphur compound;
- wherein the alkyne comprises at least one carbon-carbon triple bond and that said at least carbon-carbon triple bond is selectively hydrogenated to a respective carbon-carbon double bond to form said alkene.
1 more element
Composition comprising
- an alkyne;
- a hydrogenation catalyst which is palladium supported on a carrier;
- and
- at least one additive (AP) which is an organic phosphorus compound;
- and
- at least one additive (AS) which is an organic sulphur compound.
3 more elements
Dependencies are inferred from the claim text.