CAJ | 학술논문

首次将铌酸用于催化合成马来酸二辛酯。在酐醇摩尔比13，回流反应1h，催化剂用量为5g/mol酐的条件下，转化率为99.3%，选择性为85.6%。催化剂不经处理，可循环使用多次，且不污染环境，相对于一些常见催化剂，具有明显的优点。
수차장니산용우최화합성마래산이신지。재항순마이비13，회류반응1h，최화제용량위5g/mol항적조건하，전화솔위99.3%，선택성위85.6%。최화제불경처리，가순배사용다차，차불오염배경，상대우일사상견최화제，구유명현적우점。
Niobic acid was first used as the catalyst for the synthesis of n-octyl maleate. The optimum conditions were as follows: the molar ratio of n-octyl alcohol to maleic anhydride was 3.0∶1，the reaction time of reflux was 1h, the amount of catalyst was 5g per mole of maleic anhydride. The conversion of maleic anhydride was 99.3%, and the selectivity reached 85.6%.The catalyst can be used for times without any treatments, and has no pollution to environ-ment. In comparison with some other common catalysts, the niobic acid had obvious advantages.