US Patent Issued to Evonik Operations on March 17 for "Method for increasing propylene oxide output of an integrated process for making propylene oxide and propylene glycol" (German Inventors)

ALEXANDRIA, Va., March 17 -- United States Patent no. 12,577,218, issued on March 17, was assigned to Evonik Operations GmbH (Essen, Germany).

"Method for increasing propylene oxide output of an integrated process for making propylene oxide and propylene glycol" was invented by Holger Wiederhold (Darmstadt, Germany), David Bolz (Frankfurt, Germany) and Bernd Jaeger (Bickenbach, Germany).

According to the abstract* released by the U.S. Patent & Trademark Office: "An integrated process for making propylene oxide and propylene glycol involves reacting propene with an oxidant to provide propylene oxide, reacting a fraction of the propylene oxide with water to provide an aqueous glycol solution containing monopropylene glycol and dipropylene g...