Lipf6 production process

Details Lipf6 production process Lipf6 production process

C - Chemistry, Metallurgy

01

D

C01D 15/00 (2006.01) H01M 10/40 (2006.01)

Patent

CA 2259985

The invention relates to a LiPF6 production process, wherein LiF is reacted with PCl5 or PCl3 at a temperature of -20 to 300 ~C for a reaction time of 0.1 to 10 hours to give LiPF6, and LiPF6 is isolated as a solution from the reaction mixture, using ether, nitrile, sulphone, carbonate, halogenated hydrocarbon and/or tertiary amines as the solubilizing agent.

La présente invention porte sur un procédé de fabrication de LiPF¿6?, selon lequel du LiF est mis à réagir avec du PCl¿5? ou du POCl¿3? à une température comprise entre -20 et 300 ·C pendant une durée comprise entre 0,1 et 10 heures pour donner du LiPF¿6?, et le LiPF est isolé du mélange réactionnel sous forme de solution, l'agent de dissolution utilisé étant de l'éther, du nitrile, du sulfone, du carbonate, du carbure d'hydrogène halogéné et/ou des amines tertiaires.

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