Cryogenically controlled direct fluorination process, apparatus

Details Cryogenically controlled direct fluorination process, apparatus Cryogenically controlled direct fluorination process, apparatus

1981-07-17

1983-08-23

Love, Ethel G.

Organic compounds -- part of the class 532-570 series

Organic compounds

Carboxylic acid esters

562605, C07C 6963

Patent

active

044005326

ABSTRACT:
An apparatus and process useful in direct fluorination of a variety of compositions, as well as the fluorinated compositions themselves, are disclosed.
The apparatus comprises a cryogenic zone reactor, such as a packed column reactor, suitably divided into a plurality of independently controllable cryogenic temperature zones. Means are also provided to introduce a reactant to be fluorinated as well as to introduce a mixture of fluorine gas and an inert gas.
New fluorinated compounds are also disclosed. These include: perfluoro-2-methoxyethyl ether; perfluoro-1,4-dioxane; perfluoro-2,5-diketohexane; perfluorohexamethylethane; and monohydropentadecafluoroadamantane.
Additionally, new syntheses for trifluoroacetic acid, a commercially significant bulk chemical, are disclosed. One synthesis comprises producing perfluorooethyl acetate by direct fluorination using a cryogenic zone reactor, followed by hydrolysis of perfluoroethyl acetate. Two moles of the acid are produced for each mole of ester. A second synthesis comprises fluorinating an acyl chloride followed by hydrolysis of the resulting acyl fluoride.

REFERENCES:
patent: 3878246 (1975-04-01), Mathey et al.
patent: 4030994 (1977-06-01), Kollonitsch
patent: 4113435 (1978-09-01), Lagow et al.
patent: 4330475 (1982-05-01), Adcock

Affiliated with

Also associated with

Rating

Cryogenically controlled direct fluorination process, apparatus does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Cryogenically controlled direct fluorination process, apparatus , we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Cryogenically controlled direct fluorination process, apparatus will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-1948099