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醇醛物质的量比对不饱和醛催化氢转移反应的影响

Influence of isopropanol/citral molar ratio on citral hydrogen transfer reaction
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摘要 探讨了ZrO_2/SiO_2催化柠檬醛和异丙醇的氢转移反应醇醛物质的量比对反应速率的影响。结果表明,实验条件下,反应混合物的沸点随醇醛物质的量比的增大而降低;柠檬醛转化率和目标产物选择性明显受醇醛物质的量比的影响,醇醛物质的量比变化导致混合物沸点的改变可能是影响反应速率的主要因素。研究条件下,反应最适宜的醇醛物质的量比为5,表观活化能为100.5 kJ·mol^(-1)。 The influence of isopropanol/citral ratio on the reaction rate of citral and isopropanol hydrogen transfer reaction catalyzed by ZrO2/SiO2 was investigated. The results showed that the boiling point of reaction mixtures lowered with the increase of isopropanol/citral ratio under the experimental condition. factor of the reaction rate. The optimum isopropanol/citral mole ratio of 5 and the experimental apparent activation energy of 100.5 kJ ·mol^-1 were attained.
作者 周勤 陈希慧
机构地区 广西大学化学化工学院
出处 《工业催化》 CAS 2011年第6期33-36,共4页 Industrial Catalysis
基金 广西自然科学基金项目(桂科自0447002)
关键词 催化反应工程 柠檬醛 ZrO2/SiO2催化剂 氢转移反应 醇醛物质的量比 catalytic reaction engineering eitral ZrO2/SiO2 catalyst hydrogen transfer reaction isopro- panol/citral molar ratio
分类号 TQ032 [化学工程] O643.36 [理学—物理化学]
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参考文献10

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工业催化
2011年 第6期

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