| 摘要 |
PURPOSE:To efficiently produce a fatty acid ester in remarkably good productivity and space time yield by reacting a lower fatty acid with a lower olefin using a specific molybdic acid salt having long life as a catalyst. CONSTITUTION:A molybdophosphoric acid salt or silicomolybdic acid are dissolved in water and nitric acid salt or carbonic acid salt of cesium, rubidium, thallium, ammonium or potassium is added thereto in a powdery state or as an aqueous solution and then water content of the mixture is removed by evaporation and the resultant solid material is subjected to heat treatment at about 100-300 deg.C to give a catalyst. A lower fatty acid (e.g. acetic acid) is esterified with a lower olefin using the resultant catalyst to provide the fatty acid ester (e.g. ethyl acetate). In the above-mentioned reaction, a vapor reaction is preferably used and in this case, a larger excess of the lower olefin to the lower fatty acid is needed. |
