Preparation of tetrafluoroethylene

Details Preparation of tetrafluoroethylene Preparation of tetrafluoroethylene

1996-03-25

1997-11-04

Barts, Samuel

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

Organic compounds

Halogen containing

C07C 5114

Patent

active

056842180

ABSTRACT:
Tetrafluoroethylene is obtained by subjecting metal fluoride, such as sodium fluoride, calcium fluoride or silicon fluoride, to a plasma to form a gaseous mixture of metal and reactive fluorine. This gaseous mixture is then reacted with a bed of carbon particles at a temperature at which the metal, when non-carbonaceous, does not condense. The resultant reaction mixture is then quenched to obtain the tetrafluoroethylene. Typically, the plasma will be at a temperature of at least 4500.degree. C. and the temperature of the carbon bed will be in the range of 2000.degree. C. to 3500.degree. C.

REFERENCES:
patent: 2835711 (1958-05-01), Wolfe et al.
patent: 2941012 (1960-04-01), Forshey

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