| 摘要 |
PURPOSE:The gas-phase reaction between CF3CHCl2, O2 and water is effected under such conditions as the feedstocks and the reaction products do not liquefy, using a completely mixing type reactor, as the feed stocks are continuously supplied and the products are continuously taken out, whereby the titled compound is obtained. CONSTITUTION:In the production of trifluoroacetic acid and its acid chloride by reaction between 1,1-dichloro-2,2,2-trifluoroethane, oxygen and water, their gas- phase reaction is effected under reaction conditions where the feed stocks and the products do not liquefy, using a completely mixing type reactor free from local heating, preferably an upright reactor provided with a stirrer and the starting materials are continuously fed and the products are continuously taken out to give trifluoroacetic acid and its acid chloride. The reaction temperature is preferably 260-320 deg.C and the pressure is 25-35kg/cm<2>. The oxygen is preferably fed 1-2mol per mol of CH2CHCl and water is 0.01-0.5mol.
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