Perfluorination of ethers in the presence of hydrogen fluoride s

Details Perfluorination of ethers in the presence of hydrogen fluoride s Perfluorination of ethers in the presence of hydrogen fluoride s

1988-05-24

1989-08-22

Nielsen, Earl

Synthetic resins or natural rubbers -- part of the class 520 ser

Synthetic resins

Mixing of two or more solid polymers; mixing of solid...

525410, 568604, 568615, 568639, 568677, 568683, 549352, 549353, 549504, C08G 6532, C07C 4122, C07C 4312

Patent

active

048597473

ABSTRACT:
The direct fluorination of ethers in the presence of hydrogen fluoride (HF) scavengers such as sodium fluoride and potassium fluoride is disclosed. Ethers (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 elemental fluorine. The HF scavenger permits use of more severe fluorination conditions than would be possible in the absence of the scavenger, i.e. higher initial fluorine, less gradual increases in fluorine gas concentrations and greater fluorine gas flow rates.

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