| 摘要 |
A process for the preparation of partly fluorinated ethanes of the general formula +TI, CF3-CFHxCl2-x in which x=0, 1 or 2, is indicated which comprises reacting, as the reactant, partly fluorinated ethane of the general formula C2F3HxCl3-x in which x=0, 1, or 2, and, as the fluorinating agent, partly fluorinated ethanes of the general formula +TI, CF3-xClx-CH3-yCly in which x=0, 1 or 2 and y=0, 1, 2 or 3 with one another in gaseous form in the presence of a chromium catalyst at temperatures of 150 DEG to 600 DEG C., the reactant and the fluorinating agent having the same chemical structural formula being excluded.
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