Hydrogen fluoride recovery process

Details Hydrogen fluoride recovery process Hydrogen fluoride recovery process

C - Chemistry, Metallurgy

01

B

C01B 7/19 (2006.01) C07C 17/093 (2006.01) C07C 17/20 (2006.01) C07C 17/21 (2006.01) C07C 17/38 (2006.01)

Patent

CA 2284052

A process for recovery of hydrogen fluoride comprises contacting a gaseous mixture containing hydrogen fluoride and an organic compound with a solution of an alkali metal fluoride in hydrogen fluoride, separating a gas phase depleted in hydrogen fluoride and containing the organic compound from a liquid phase enriched in hydrogen fluoride, and then recovering the hydrogen fluoride from the liquid phase.

L'invention porte sur un procédé de récupération du fluorure d'hydrogène consistant à mettre en contact un mélange gazeux contenant du fluorure d'hydrogène et un composé organique avec une solution d'un fluorure de métal alcalin dans du fluorure d'hydrogène, puis à séparer la phase gazeuse, appauvrie en fluorure d'hydrogène et contenant le composé organique, de la phase liquide, enrichie en fluorure d'hydrogène, puis à récupérer le fluorure d'hydrogène de la phase liquide.

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