CAJ | 학술논문

以乙酸、异戊醇为原料，固体超强酸Gd3＋-SO2-4/ZrO2为催化剂，催化合成乙酸异戊酯。确定了固体超强酸的最佳焙烧温度，进行了固体超强酸Gd3＋-SO2-4/ZrO2和SO2-4/ZrO2催化活性对比实验，以及考察了原料酸醇比、反应时间、催化剂用量对酯化率的影响。实验结果表明：反应温度110～115℃，催化剂用量2 g， n（异戊醇）：n（乙酸）＝2.0：1.0，反应时间2 h，酯化率可达88.4％，催化剂重复使用效果明显，加Gd3＋的固体超强酸的催化活性明显增强。
이을산、이무순위원료，고체초강산Gd3＋-SO2-4/ZrO2위최화제，최화합성을산이무지。학정료고체초강산적최가배소온도，진행료고체초강산Gd3＋-SO2-4/ZrO2화SO2-4/ZrO2최화활성대비실험，이급고찰료원료산순비、반응시간、최화제용량대지화솔적영향。실험결과표명：반응온도110～115℃，최화제용량2 g， n（이무순）：n（을산）＝2.0：1.0，반응시간2 h，지화솔가체88.4％，최화제중복사용효과명현，가Gd3＋적고체초강산적최화활성명현증강。
Isoamyl acetate was obtained by the reaction of acetic acid with isoamyl alcohol , with rare earth solid superacid Gd 3+-SO2-4 /ZrO2 as the reactive catalyst was described.The esterification reaction was performed to confirm the optimal conditions of preparation.The experiments were compared with the rare earth solid superacid Gd 3+-SO2 -4 /ZrO2 catalyst, and the ratio of isoamyl alcohol was investigated with acetic acid , reacted time, the mass of catalyst influences on the catalytic activity.The results showed that isoamyl alcohol acetate was prepared by reaction at 110 ~115 ℃for 2 h with n(isoamyl alcohol):n(acetic acid)=2.0:1.0, and(catalyst)=2 g, the conversion of acetic acid amounts was 88.4%, catalyst was used repeatedly but still had high catalytic activity , and catalytic activity of the solid super acid which added Gd 3+improved apparently.