摘要
研究了用新型催化剂铌酸催化合成马来酸二辛酯的工艺。反应优惠条件为 :醇∶酐 (m/m) =3 0∶1 ,铌酸用量为 8g/mol酐 ,回流反应时间 2h。在优惠条件下 ,转化率可达99 6% ,收率为 86 4 %。该催化剂预处理方法简单 ,易回收 ,可循环使用 ,且不污染环境。
A new catalyst, niobic acid, was used for the synthesis of di 2 ethylhexyl maleate with yield of 86.4%. The optimum conditions were as follow: molar ratio of maleic anhydride to 2 ethyl hexanol was 1.0∶3.0, reaction time under reflux was 2 hours, mass of catalyst accounted for 8g/mol of maleic anhydride. The catalyst had many advantages, such as easy to be recovered, easible to be used repeatedly and less pollution to the environment.
关键词
铌酸
催化剂
马来酸二辛酯
催化
niobic acid
catalyst
di 2 ethylhexyl maleate
