【摘要】 探讨了用强碱性阴离子交换树脂催化下合成二丙酮醇的适宜工艺．选择了合适的工艺条件，反应周期短，催化剂寿命长．如，反应从催化剂上端进料，反应温度20～25℃，单程反应的最短时间为4h．收率92％，比重0．93，折光率1．4240～1．4242产品质量与文献值相符．催化剂寿命大于150h．更多还原

【Abstract】 The method of preparation of diacetone alcohol catalyzed by basic ion exchange resin D261 was described. The most favorite conditions were given. For example, when 310g acetone was distillated and passed recycling downwards a fixed bed of D261 at 20～25℃, 184g diacetone alcohol was obtained after 4h. The yield of the product were 0. 93 and 1. 4240～1. 4242, respectively. These indicated that the quality of the product was good. The lifetime of the catalyst in this metod was 150h that was longer than that of it in the usual method. From the experiments we concluded that the production procedure was convenient,suitable and economical for industral production.更多还原