第 50 卷第 2 期 | ![](image2/wentou.gif) | Vol. 50 No. 2 | 2020 年 4 月 | Apr 2020 |
|
所属栏目:有机合成原料
甲苯液相选择性氧化制苯甲醛的工艺研究 |
邢跃军1,陈韶辉1,王仲霞2,王志侃2
(1. 中国石化 扬子石油化工有限公司南京研究院,江苏 南京 210048;2. 中国石化 石家庄炼化分公司,河北 石家庄 050099) |
摘 要:甲苯与空气液相选择性氧化是一条制备苯甲醛的绿色化生产路线。建立了一套甲苯液相空气氧化的连续化试验装置,在工业装置操作条件下,通过加入含氮杂环化合物助催化剂,提高了甲苯转化率和苯甲醛选择性。研究结果表明,加入苯并咪唑助催化剂100 mg·kg-1后,甲苯转化率为17.3%,苯甲醛选择性为6.6%。 |
关键词:甲苯;苯甲醛;苯甲酸;选择性氧化 |
中图分类号:TQ244.1;TQ241.12 文献标识码:A 文章编号:1009-9212(2020)02-0054-04 |
|
Study on Liquid-phase Selective Oxidation of Toluene to Benzaldehyde |
XING Yue-jun1, CHEN Shao-hui1, WANG Zhong-xia2, WANG Zhi-kan2
(1. Nanjing Research Institute of SINOPEC Yangzi Petrochemical Company Limited, Nanjing 210048, China; 2. Shijiazhuang Refining & Chemical Company, SINOPEC, Shijiazhuang 050099, China) |
Abstract:The liquid-phase selective oxidation of toluene with air is a green production route for the preparation of benzaldehyde. A set of continuous pilot equipment for liquid-phase air oxidation of toluene was set up. Under the operating conditions of industrial plant, the conversion rate of toluene and the selectivity of benzaldehyde were improved by adding nitrogen containing heterocyclic compound as co-catalyst. The results showed that the conversion of toluene was 17.3% and the selectivity of benzaldehyde was 6.6% when benzimidazole co-catalyst was added at a level of 100 mg·kg-1. |
Key words:toluene; benzaldehyde; benzoic acid; selective oxidation |
|
基金项目:中国石油化工集团有限公司科研攻关项目(412061)。
|
作者简介:邢跃军(1969-),男,江苏南通人,高级工程师,硕士,主要从事芳烃氧化工艺研究及精细化学品开发工作(E-mail:xingyj.yzsh@sinopec.com)。
|
收稿日期:2020-04-14
|
|