纳米级HZSM-5分子筛催化合成异戊酸异戊酯的研究  

Synthesis of Isoamyl Isovalerate Catalyzed by Nanometer - graded HZSM - 5 Molecular Sieve Catalyst

作　　者：李明慧[1] 杨大伟[1] 杨毅[1] 王井[1] 

机构地区：[1]大连轻工业学院化工与材料学院,大连116034

出　　处：《精细石油化工进展》2005年第4期22-24,36,共4页Advances in Fine Petrochemicals

基　　金：辽宁省教育厅攻关计划项目(项目编号:202073414)

摘　　要：用纳米级HZSM-5分子筛作催化剂合成了异戊酸异戊酯,考察了催化剂的活化温度和活化时间以及酯化反应条件对酯收率的影响。实验结果表明,在500℃下焙烧5 h的催化剂具有较好的催化活性。在催化剂用量(以原料质量计)3.4%、原料异戊醇与异戊酸摩尔比1:2、反应时间7 h的最佳条件下,异戊酸异戊酯的收率可达66%。Isoamyl isovalerate was synthesized using nanometer - graded HZSM - 5 molecular sieve as catalyst. The effects of activation temperature and activation time for the catalyst and the esterification conditions on the yield of isoamyl isovalerate were investigated. The results showed that the catalyst had high catalytic activity under activation temperature 500℃ and activation time 5 h. The yield of isoamyl isovalerate could reach 66 % under amount of catalyst 3.4%, molar ratio of isoamyl alcohol to isovalerate 1:2, reaction time 7 h.

关 键 词：异戊酸异戊酯 HZSM-5 分子筛 催化合成反应 催化活性 反应条件 

分 类 号：O643.3[理学—物理化学] O623.624[理学—化学]