| 摘要 |
PURPOSE:To obtain the subject compound in high yield and high purity with inhibiting side reaction, in performing quick reaction with high reaction activity and readily performing post-treatment after the reaction by subjecting carboxylic acids and alcohol to esterification reaction using a specific solid acid as a catalyst. CONSTITUTION:Hydroxide or oxide of IV-group metal in the periodic table such as zirconium hydroxide is treated with a sulfate ion-containing solution such as sulfuric acid and activated by burning at 350-800 deg.C for 1-10hr, then resultant solid acid is used as a catalyst. Next, a theoretical amount or a rather excess amount of carboxylic acid such as oleic acid or acid anhydride and alcohol such as pentaerythritol are subjected to esterification reaction so as a total amount of hydroxyl group value and acid value of reaction product removed of the catalyst to be 15mg KOH/g and after the finish of the reaction, the catalyst is removed by a physical method such as filtration without removing unreacted substance to recover the aimed compound having high quality and useful for an organic solvent, plasticizer or synthetic lubricating oil, etc. |
