TiSiW_(12)O_(40)/TiO_2催化合成邻苯二甲酸二丁酯

SYNTHESIS OF DIBUTYL PHTHALATE USING TiSiO_(12)O_(40)/TiO_2 AS CATALYSTS

报道了新型催化剂ＴｉＳｉＷ１２Ｏ４０／ＴｉＯ２催化酯化合成邻苯二甲酸二丁酯的醇酸比、催化剂用量、带水剂等因素对酯收率的影响．实验表明，在以苯作带水剂，催化剂的用量为反应液的１．１％，醇酸摩尔比为３．５：１，酯化反应时间为２．５ｈ，邻苯二甲酸二丁酯的收率达９８．８％，超过硫酸、磷钨酸、ＳｎＳｉＷ１２Ｏ４０／ＳｎＯ２的催化水平．

In this paper, the synthesis of DBP using TiSiW12O40/TiO2 as catalysts has been studied. The optimum condition are ; mol ratio fo butyl alcohol to phthalic anhydride 3.5:1the quantity of catalyst to feedstock 1.1% (wt. ), hydrocarrying anent benzene and reaction time 2. 5 hours,. Result show that TiSiW12O40/TiO2 is a very high catalystic activity. The quality of products are very fine.