| 摘要 |
PURPOSE:To produce a lower fatty acid ester in high hourly space yield on an industrial scale at a low cost by esterifying a lower fatty acid with a lower olefin using a catalyst having high activity and long life. CONSTITUTION:The above object for the production of a lower fatty acid ester can be achieved by using a catalyst produced by contacting at least one kind of heteropolyacid salt selected from (1) cesium salt, (2) rubidium salt, (3) thallium salt, (4) ammonium salt and (5) potassium salt of phosphotungstic acid, silicotungstic acid, phosphomolybdic acid and silicomolybdic acid with water- containing or anhydrous organic carboxylic acid and organic carboxylic acid ester in vapor phase. |
