Perfluorination of ethers

Details Perfluorination of ethers Perfluorination of ethers

C - Chemistry, Metallurgy

07

C

402/370, 260/647

C07C 43/12 (2006.01) C08G 59/14 (2006.01) C08G 65/32 (2006.01) C08G 65/48 (2006.01)

Patent

CA 1272739

ABSTRACT OF THE DISCLOSURE The direct fluorination of ethers in the presence of hydrogen fluoride (HF) scavengers such as sodium fluoride and potassium fluoride is dis- closed. The (liquid or solid) are either mixed with the HF scavenger, coated onto the HF scavenger or placed separately with the HF scavenger into a fluorination reactor and fluorinated by exposure to gradually increasing concentrations of fluorine gas. the HF scavenger permits use of more severe fluori- nation conditions i.e. higher initial fluorine, less gradual increases in fluorine gas concentrations and greater fluorine gas flow rates.

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