Catalytic Production Processes for Making Tetrafluoropropenes and Pentafluoropropenes

摘要

A process is disclosed for making CF3CF-CHF. The process involves contacting at least one hexafluoropropane selected from the group consisting of CF3CF2CH2F and CF3CHFCHF2 with a chromium oxyfluoride catalyst in a reactor to obtain a product mixture comprising CF3CF-CHF, and recovering CF3CF-CHF from the product mixture. A process is disclosed for making CF3CH-CHF. The process involves contacting CF3CH2CHF2 with a chromium oxyfluoride catalyst in a reactor to obtain a product mixture comprising CF3CH-CHF, and recovering CF3CH-CHF from the product mixture. A process is disclosed for making CF3CF-CH2. The process involves contacting CF3CF2CH3 with a chromium oxyfluoride catalyst in a reactor to obtain a product mixture comprising CF3CF-CH2, and recovering CF3CF-CH2 from the product mixture.