Publication number: 20220388929
Abstract: A method of producing a fluoroolefin includes contacting a compound of formula (1), RfCX1?CHCF3, with a fluorinated ethylene compound of formula (2), CX2X3?CX4X5 in the presence of a catalyst. In the compound of formula (1), Rf is a linear or branched C1-C10 perfluorinated alkyl group and Xi is H, Br, Cl, or F. In the compound of formula (2), X2, X3, X4, and X5 are each independently H, Br, Cl, or F and at least three of X2, X3, X4, and X5 are F. The resulting composition comprises a compound of formula (3), Rf(CF2)nCX6?CH(CF2)mCX7X8CFX9X10. In the compound of formula (3), X6, X7, X8, X9, and X10 are each independently H, Br, Cl, or F, and the total number of each of H, Br, Cl, and F corresponds to the total number of each of H, Br, Cl, and F provided by the compounds of formulae (1) and (2).
Type:
Application
Filed:
December 9, 2020
Publication date:
December 8, 2022
Applicant:
THE CHEMOURS COMPANY FC, LLC
Inventors:
VIACHESLAV A. PETROV, JASON R. JUHASZ, LUKE DAVID SIMONI, DREW RICHARD BRANDT, JONATHAN P. STEHMAN
Patent number: 11512239
Abstract: Disclosed are compositions comprising HCFC-243db, HCFO-1233xf, HCFC-244db and/or HFO-1234yf and at least one additional compound. For the composition comprising 1234yf, the additional compound is selected from the group consisting of HFO-1234ze, HFO-1243zf, HCFC-243db, HCFC-244db, HFC-245cb, HFC-245fa, HCFO-1233xf, HCFO-1233zd, HCFC-253fb, HCFC-234ab, HCFC-243fa, ethylene, HFC-23, CFC-13, HFC-143a, HFC-152a, HFC-236fa, HCO-1130, HCO-1130a, HFO-1336, HCFC-133a, HCFC-254fb, CHF?CHCl, HFO-1141, HCFO-1242zf, HCFO-1223xd, HCFC-233ab, HCFC-226ba, and HFC-227ca. Compositions comprising HCFC-243db, HCFO-1233xf, and/or HCFC-244db are useful in processes to make HFO-1234yf. Compositions comprising HFO-1234yf are useful, among other uses, as heat transfer compositions for use in refrigeration, air-conditioning and heat pump systems.
Type:
Grant
Filed:
March 18, 2022
Date of Patent:
November 29, 2022
Assignee:
THE CHEMOURS COMPANY FC, LLC
Inventors:
Barry Asher Mahler, Mario Joseph Nappa