US Patent Issued to DSM IP ASSETS on June 30 for "Selective hydrogenation of alkynes to alkenes in the presence of a phosphorus compound and an organic sulphur compound" (Swiss Inventors)

ALEXANDRIA, Va., July 16 -- United States Patent no. 12,668,559, issued on June 30, was assigned to DSM IP ASSETS B.V. (Maastricht, Netherlands).

"Selective hydrogenation of alkynes to alkenes in the presence of a phosphorus compound and an organic sulphur compound" was invented by Jonathan Alan Medlock (Rheinfelden, Switzerland) and Lise Malika Molinari (Basel, Switzerland).

According to the abstract* released by the U.S. Patent & Trademark Office: "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...