摘要
研究了Ti(SO4 ) 2 /C在邻苯二甲酸酐和异戊醇酯化中的催化性能 ,结果表明 ,Ti(SO4 ) 2 /C在该反应中具有较高的催化活性 ,并得到了合成邻苯二甲酸二异戊酯的新工艺条件是 :催化剂用量 (邻苯二甲酸酐质量分数 )为 5 % ;异戊醇 0 5mol,邻苯二甲酸酐 0 2mol,反应温度 185℃ ,反应时间 180min ,在此条件下收率可达 95 %。
Ti(SO 4) 2/C was applied to esterification of phthalic anhydride with isoamyl alcohol.The results showed that Ti(SO 4) 2/C had good catalytic performance in the esterification.The optimum condition of synthesis of diisoamyl phthalate was obtained as follows:the catalyst 5%,isoamyl alcohol 0.5 mol,phthalic anhydride 0.2 mol,reaction temperature 185℃,time 180 min.In optimum condition,the rate of esterification was 95%.
