Materials and methods for the production and purification of chlorofluorocarbons and hydrofluorocarbons

摘要

Disclosed is a process for producing CF3CCl-2CF3 comprising: Contacting a saturated C-3 reactant comprising one or more of perhydrogenated or partially halogenated C-3 hydrocarbons with Cl2 and HF in the presence of a first catalyst at a first temperature to form a C-3 product comprising a C-3 perhalogenated compound, wherein the first catalyst comprises chromium; and Contacting the C-3 product with HF in the presence of a second catalyst at a second temperature different from the first temperature to form CF3CCl2CF3 wherein the second temperature is greater than 300 °C.