ALEXANDRIA, Va., June 16 -- United States Patent no. 12,304,880, issued on May 20, was assigned to Honeywell International Inc. (Charlotte, N.C.).
"Method for dehydrochlorination of HCFC-244BB to manufacture HFO-1234YF" was invented by Haluk Kopkalli (Staten Island, N.Y.), Carlos Navar (Baton Rouge, La.), Yuon Chiu (Denville, N.J.) and Haiyou Wang (Amherst, N.Y.).
According to the abstract* released by the U.S. Patent & Trademark Office: "A process for making 2,3,3,3-tetrafluoropropene (HFO-1234yf) includes providing a composition including 2-chloro-1,1,1,2-tetrafluoropropane (HCFC-244bb) to a reactor including a heater surface at a surface temperature greater than about 850deg F. (454deg C.), and then bringing the composition into contac...