Xuehui Sun, Kennett Square, PA (US); and Karl Krause, Kennett Square, PA (US)
Assigned to THE CHEMOURS COMPANY FC, LLC, Wilmington, DE (US)
Filed by THE CHEMOURS COMPANY FC, LLC, Wilmington, DE (US)
Filed on Oct. 3, 2023, as Appl. No. 18/479,882.
Application 18/479,882 is a continuation of application No. 17/812,203, filed on Jul. 13, 2022, granted, now 11,840,492.
Application 17/812,203 is a continuation of application No. 17/155,796, filed on Jan. 22, 2021, granted, now 11,440,860, issued on Aug. 24, 2022.
Application 17/155,796 is a continuation of application No. 15/759,040, granted, now 10,927,061, issued on Feb. 23, 2021, previously published as PCT/US2016/050918, filed on Sep. 9, 2016.
Claims priority of provisional application 62/217,291, filed on Sep. 11, 2015.
Prior Publication US 2024/0025824 A1, Jan. 25, 2024
1. A dehydrochlorination process comprising vigorously contacting a chlorofluoroalkane of formula RCXYCZQT in an aqueous solvent comprising NaOH in a molar ratio of about 0.5 to about 2.0 of NaOH:chlorofluoroalkane, in the absence of any additional phase transfer catalyst, at a temperature in the range of about 30° C. to about 80° C. to produce a product comprising a fluoroolefin of formula RCX=CZQ, wherein R is a perfluorinated alkyl group and X, Z, and Q are independently H or fluorine, and one of Y and T is H and the other is Cl, wherein the conversion by the dehydrochlorination process is at least 95% of the maximum based on a starting ratio of NaOH and chlorofluoroalkane.
