PrAPO-5催化α-蒎烯氧化制备马鞭草烯酮  

Preparation of Verbenone by Oxidation ofα-Pinene with PrAPO-5 Catalysis

作　　者：黄丽霏 王宏运 刘甜 刘成志 赖芳[1] 刘雄民[1] HUANG Lifei;WANG Hongyun;LIU Tian;LIU Chengzhi;LAI Fang;LIU Xiongmin(College of Chemistry and Chemical Engineering,Guangxi University,Nanning 530004,China)

机构地区：[1]广西大学化学化工学院,广西南宁530004

出　　处：《化工技术与开发》2022年第11期1-6,共6页Technology & Development of Chemical Industry

基　　金：国家自然科学基金资助项目(21502027);广西自然科学基金资助项目(2015GXNSFAA139041);广西大学科研基金资助项目(XBZ130010);广西大学“大学生创新创业训练计划”资助项目(202110593190)。

摘　　要：本文研究了PrAPO-5分子筛催化氧化α-蒎烯合成马鞭草烯酮。采用水热法制备了PrAPO-5分子筛,通过一系列表征手段研究了PrAPO-5分子筛的结构,并探究了反应温度、反应时间、氧气压力、催化剂用量对α-蒎烯催化氧化合成马鞭草烯酮的影响及催化剂的重复使用性。结果表明,PrAPO-5分子筛为介孔分子筛,具有APO-5的AFI特征衍射峰。在反应温度为100℃、加入1.0g的α-蒎烯、氧气压力为0.7MPa、反应时间为6h的条件下,α-蒎烯的转化率为87.85%,马鞭草烯酮的产率和选择性分别为25.25%和28.74%。PrAPO-5催化剂在连续回收并重复使用5次后,仍保持理想的催化活性和选择性。Verbenon was synthesized fromα-pinene oxidation catalyzed by PrAPO-5molecular sieve.The PrAPO-5 molecular sieve was prepared by hydrothermal method.The structure of PrAPO-5 molecular sieve was characterized by a series of characterization means.The effects of reaction temperature,reaction time,oxygen pressure and the catalyst dosage on the catalytic oxidation ofα-pinene to verbenone and the reusability of catalyst were discussed.The results showed that PrAPO-5 molecular sieve was a mesoporous molecular sieve with the characteristic AFI diffraction peak of APO-5.Under the conditions of reaction temperature of 100℃,addition of 1.0gα-pinene,oxygen pressure of 0.7MPa and reaction time of 6h,the conversion ofα-pinene was 87.85%,and the yield and selectivity of verbenone were 25.25%and 28.74%respectively.Also the PrAPO-5 catalyst maintained the ideal catalytic activity and selectivity after continuous recovery and reuse five times.

关 键 词：Α-蒎烯 马鞭草烯酮 氧化 PrAPO-5分子筛 

分 类 号：O625.462[理学—有机化学]