Process for the preparation of 1,1,1,2-tetrafluoroethane

Details Process for the preparation of 1,1,1,2-tetrafluoroethane Process for the preparation of 1,1,1,2-tetrafluoroethane

1989-12-18

1991-04-16

Siegel, Alan

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

Organic compounds

Halogen containing

570163, 570166, 570170, 570175, C07C 1710, C07C 1908, C07C 1720

Patent

active

050084763

ABSTRACT:
Improved process for the preparation of 1,1,1,2-tetrafluoroethane by the steps of chlorofluorination of selected organic compounds using Cl.sub.2 and HF followed by hydrogenolysis of the resulting products, the improvement residing in the use of excess HF and recycle of the unreacted compounds and byproducts to the chlorofluorination step.

REFERENCES:
patent: 4605798 (1986-08-01), Abel et al.
Vecchio et al., J. Fluorine Chem., 4, 117-139 (1974).
Gervasutti et al., J. Fluorine Chem., 19, 1-20 (1981).

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