Ti-MWW催化丁酮氨肟化连续于浆床工艺.pdfVIP

2011 Chinese Journal of Catalysis Vol. 32 No. 1 文章编号: 0253-9837(2011)01-0179-05 DOI : 10.3724/SP.J.1088.2011.00735 研究论文: 179~183 Ti-MWW 催化丁酮氨肟化连续於浆床工艺 赵 松, 谢 伟, 刘月明, 吴 鹏 华东师范大学化学系, 上海市绿色化学与化工过程绿色化重点实验室, 上海 200062 摘要：在液相连续於浆床反应器中, Ti-MWW/H O 体系表现出较高的催化丁酮氨肟化制备丁酮肟的活性, 详细考察了各反应条 2 2 件对 Ti-MWW 分子筛催化性能的影响. 结果表明, 在优化的反应条件下, 丁酮转化率和丁酮肟选择性分别达 95% 和 99% 以上; 均优于传统的钛硅分子筛 TS-1, 且稳定性也更高. 关键词：Ti-MWW 分子筛; 丁酮; 氨肟化; 丁酮肟; 於浆床反应器; 过氧化氢 中图分类号：O643 文献标识码：A Methyl Ethyl Ketone Ammoximation over Ti-MWW in a Continuous Slurry Reactor * ZHAO Song, XIE Wei, LIU Yueming, WU Peng Shanghai Key Laboratory of Green Chemistry and Chemical Processes, Department of Chemistry, East China Normal University, Shanghai 200062, China Abstract: The catalytic performance of Ti-MWW/H O system for the ammoximation of methyl ethyl ketone (MEK) to methyl ethyl ke- 2 2 tone oxime (MEKO) was investigated in a continuous slurry reactor. The effects of various reaction parameters on the catalytic performance of Ti-MWW were studied in detail. Under the optimized reaction conditions, Ti-MWW showed MEK conversion and MEKO selectivity over 95% and 99%, respectively. Moreover, Ti-MWW can serve as an extremely robust catalyst, exhibiting a longer lifetime in comparison with conventional TS-1. Key words: Ti-MWW zeolite; methyl ethyl ketone; ammoximation; methyl ethyl ketone oxime; slurry reactor