催化学报

催化学报 ›› 2010, Vol. 31 ›› Issue (7): 822-826.

• 研究论文 • 上一篇    下一篇

固体磺酸促进亚硝酸异戊酯催化氧化苯甲醇反应

盛学斌 1,2, 马红 1, 李德财 1, 何静 3, 徐杰 1   

  1. 1 中国科学院大连化学物理研究所催化基础国家重点实验室, 辽宁大连 116023 2 中国科学院研究生院, 北京 100049 3 中国石油乌鲁木齐石化分公司化纤厂, 新疆乌鲁木齐 830019
  • 收稿日期:2010-07-25 出版日期:2010-07-25 发布日期:2010-07-25

Solid Sulfonic Acid-Promoted Oxidation of Benzyl Alcohol Catalyzed by Isoamyl Nitrite

SHENG Xuebin1,2, MA Hong1, LI Decai1, HE Jing3, XU Jie1,*   

  1. 1State Key Laboratory of Catalysis, Dalian Institute of Chemical Physics, Chinese Academy of Sciences, Dalian 116023, Liaoning, China 2Graduate University of Chinese Academy of Sciences, Beijing 100049, China 3PetroChina Urumuqi Petrochemical Company Fibre Mill, Urumuqi 830019, Xinjiang, China
  • Received:2010-07-25 Online:2010-07-25 Published:2010-07-25

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944

被引次数

2

摘要： 以亚硝酸异戊酯为催化剂, 通过固体磺酸的促进作用原位产生亚硝酰正离子, 实现了催化氧气氧化苯甲醇制备苯甲醛. 300 oC 处理的 Amberlyst 15 表现出较高的促进效果, 在 0.5 MPa O2, 80 oC 反应 2 h, 苯甲醇转化率和苯甲醛选择性可分别达到 90% 和 97%. 通过红外、热分析及酸碱滴定研究了不同方法制得的固体酸的差别及其对反应促进效果的影响, 并利用紫外-可见光谱和衍生化方法检测了亚硝酰正离子.

关键词: 亚硝酸异戊酯, 亚硝酰正离子, 固体磺酸, 苯甲醇, 氧化, 氧气, 苯甲醛

Abstract: Isoamyl nitrite was employed to catalyze the selective oxidation of benzyl alcohol to benzyl aldehyde using molecular oxygen, in which solid sulfonic acid was used to promote the in situ generation of nitrosonium cation. Solid acid prepared by treating Amberlyst 15 at 300 oC demonstrated the best promotion effect, with which 90% conversion and 97% selectivity for benzyl aldehyde could be achieved at 80 oC under 0.5 MPa for 2 h. The differences of solid acids and their influence on oxidation were investigated by Fourier transform infrared spectroscopy, derivative thermogravimetry, and acid-base titration. Nitrosonium cation was detected by the derivative method using ultravio-let-visible absorption spectrometry.

Key words: isoamyl nitrite, nitrosonium cation, solid sulfonic acid, benzyl alcohol, oxidation, molecular oxygen, benzyl aldehyde