	US 11,912,640 B2
	Process for purifying 1-chloro-3,3,3-trifluoropropene
Emmanuel Boussarie, Pierre-Benite (FR); Kevin Hisler, Pierre-Benite (FR); and Anne Pigamo, Pierre-Benite (FR)
Assigned to Arkema France, Colombes (FR)
Appl. No. 17/600,200
Filed by ARKEMA FRANCE, Colombes (FR)
PCT Filed Apr. 1, 2020, PCT No. PCT/EP2020/059233 § 371(c)(1), (2) Date Sep. 30, 2021, PCT Pub. No. WO2020/201342, PCT Pub. Date Oct. 8, 2020.
Claims priority of application No. 1903539 (FR), filed on Apr. 3, 2019.
Prior Publication US 2022/0204428 A1, Jun. 30, 2022
Int. Cl. C07C 17/20 (2006.01); C07C 17/395 (2006.01)

CPC C07C 17/206 (2013.01) [C07C 17/395 (2013.01)]

14 Claims

1. A process for neutralizing a composition A comprising 1-chloro-3,3,3-trifluoropropene, 1,1-dichloro-1,3,3-trifluoropropane and one or more acid compound(s) of formula HX with X═F or Cl; said process comprising the step a) of bringing said composition A into contact with a solution B under conditions capable of limiting the formation of 1-chloro-1,3,3-trifluoropropene, wherein solution B is a NaOH solution with a weight content of NaOH of from 5 to 40% by weight.