| abstract |
The process for preparing 1,1,1-trifluorochloroethane by reacting trichlorethylene and hydrogen fluoride in the gas phase, wherein the reacting gases are diluted with a reaction-inactive gas. In this way it is very easy to control the reaction temperature. When the gas generated by the reaction of 1,1,1-trifluorochloroethane and hydrogen fluoride is used as the diluent gas, the formation of 1,1-difluoroethylene is reduced to a very low level without affecting the reaction between trichlorethylene and hydrogen fluoride. |