Process for the preparation of fluorocarboxylic acids
AssigneeBayer Aktiengesellschaft
InventorsBernd Baasner, Erich Klauke, Reinhard Lantzsch
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Abstract
Fluorocarboxylic acids are prepared by metering fluoronitroaliphatic compounds into a mineral acid which has been initially introduced.
Claims1
A process for the preparation of trifluoroacetic acid which comprises introducing at 130.degree. to 200.degree. C. and at normal pressure 2,2,2-trifluoronitroethane into a sulfuric or phosphoric acid which contains 2 to 20% by weight of water, said introducing of the 2,2,2-trifluoronitroethane being at a rate corresponding to the rate of production of said trifluoroacetic acid and continuously removing the trifluoroacetic acid from the reaction mixture by distillation.
Dependencies are inferred from the claim text.