Study on the Rare Earth Solid Superacids SO 42-/TiO2-Nd2O3 Catalyzed a-Pinene Isomerization Chen Huizong, Zhou Guobin, Xu Jingshi, Liu Xianliang (Institute of Chemistry and Biological science Jiangxi Normal University, NanChang 330027) Abstract The preparation of the rare earth solid superacid SO 42-/TiO2-Nd2O3 and a-pinene isomerization catalyzed by SO42-/TiO2-Nd2O3 were studied. The conditions for preparation of SO42-/TiO2-Nd2O3 and isomerization of a-pinene were optimized. It indicates that the catalyst has fair high catalytic activity and selectivity for a-pinene isomerization and the main product is camphene. The changes of structure and profile of SO42-/TiO2-Nd2O3 calcinated under different temperature were determined by IR, XRD and SEM. Key words Rare earth solid superacid, a-Pinene, Isomerization 稀土固体超强酸催化 a-蒎烯异构化反应 陈慧宗 周国斌 徐景士 刘显亮 (江西师范大学化学与生物科学学院 南昌 330027) 摘要 首次研究了稀土固体超强酸 SO42-/TiO2-Nd2O3的制备及其催化 a-蒎烯的异构化反应，得出最佳条件。结果表明，该催化剂对 a-蒎烯的异构化反应具有很高的催化活性和选择性，主产物为莰烯。用IR、XRD、SEM等手段分析了不同焙烧温度的SO42-/TiO2-Nd2O3 的结构和形貌变化。 关键词 稀土固体超强酸 a-蒎烯 异构化 陈慧宗 女，51岁，教授，主要从事有机化学的教学和研究。 E-mail:xjs1013@163.com 江西省自然科学基金资助项目(批准号002009) 2001-09-13收稿，2001-11-07修回 (PDF全文下载c02045)