US 11,999,673 B2
Process for catalytic conversion of mixtures of HCFO-1233zd(Z) and HCFC-244fa into HCFO-1233zd(E)
Christian Jungong, Depew, NY (US); and Daniel C. Merkel, Orchard Park, NY (US)
Assigned to Honeywell International Inc., Charlotte, NC (US)
Filed by HONEYWELL INTERNATIONAL INC., Charlotte, NC (US)
Filed on Aug. 28, 2022, as Appl. No. 17/897,166.
Application 17/897,166 is a continuation of application No. 16/757,825, granted, now 11,472,757, previously published as PCT/US2018/057469, filed on Oct. 25, 2018.
Application 16/757,825 is a continuation of application No. 15/794,562, filed on Oct. 26, 2017, granted, now 10,118,879, issued on Nov. 6, 2018.
Prior Publication US 2022/0411354 A1, Dec. 29, 2022
This patent is subject to a terminal disclaimer.
Int. Cl. C07C 17/358 (2006.01); C07C 17/25 (2006.01); C07C 17/383 (2006.01)
CPC C07C 17/358 (2013.01) [C07C 17/25 (2013.01); C07C 17/383 (2013.01); C07B 2200/09 (2013.01)] 16 Claims
OG exemplary drawing
 
1. A method for simultaneous conversion of a mixture of HCFO-1233zd(Z) and HCFC-244fa to form HCFO-1233zd(E), comprising:
providing a mixture including HCFO-1233zd(Z) and HCFC-244fa; and
reacting the HCFO-1233zd(Z) and HCFC-244fa mixture in a vapor phase in the presence of a catalyst selected from the group consisting of chromium trifluoride (CrF3), chromium oxide (Cr2O3), chromium oxyfluoride, aluminum fluoride, and combinations thereof to simultaneously isomerize HCFO-1233zd(Z) to form HCFO-1233zd(E) and dehydrohalogenate HCFC-244fa to form HCFO-1233zd(E),
wherein said reacting step is conducted at a temperature between 80° C. and 275° C., and wherein said reacting step achieves a conversion of HCFO-1233zd(Z) to HCFO-1233zd(E) of 88% or greater.