| 摘要 |
In a carbonylation process for a producing acyl halides, e.g. acyl fluorides, the carbon monoxide and anhydrous acid such as hydrogen fluoride are premixed to form a single liquid phase which is reacted in a second reactor with an organic compound, i.e. an ester or an olefin, e.g. propylene, to produce an acyl halide, e.g., isobutyryl fluoride. In the second reactor the temperature is 0- 90 DEG C and the pressure 34-340 bars. The mole ratio of anhydrous acid to organic compounds is 1-100 moles of anhydrous acid per mole of organic compound and the mole ratio of carbon monoxide to organic compound is 1 to 5 moles of carbon monoxide per mole of organic compound. The acyl halide product may be hydrolysed to form the corresponding carboxylic acid which may in turn be oxydehydrogenated in the organic phase to form the corresponding unsaturated acid, e.g., acrylic acid or methacrylic acid. |
