Process for the work-up of complex amine hydrofluorides

Details Process for the work-up of complex amine hydrofluorides Process for the work-up of complex amine hydrofluorides

C - Chemistry, Metallurgy

07

C

C07C 211/03 (2006.01) C07B 39/00 (2006.01) C07C 17/087 (2006.01) C07C 17/38 (2006.01) C07C 209/84 (2006.01) C07C 209/86 (2006.01) C07C 211/07 (2006.01)

Patent

CA 2165632

The invention relates to a process for the work-up of a liquid complex hydrofluoride of a tertiary amine of the formula (I) [R1R2R3Nn HF], where the radicals R1, R2 and R3 are C1-C8-alkyl groups which together have at least 7 carbon atoms and n is an integer or fractional number where 1.5 < n < 3, which, for the purpose of molecular addition of HF to a halogenated alkene, is reacted with the latter. In the reaction of the halogenated alkene with the complex amine hydrofluoride of the formula (I), the molar ratio HF:R1R2R3N is allowed to fall until amine separates out as a further liquid phase, and the amine is separated off.

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