异丁烯为原料制备甲基丙烯酸甲酯的催化剂
CIESC Journal
• 绿色催化技术 • 上一篇 下一篇
王蕾;张锁江;李增喜;李桂花;李铭岫
中国科学院过程工程研究所,北京 100080;中国科学院研究生院,北京 100039;河北师范大学化学学院,河北 石家庄 050091
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CATALYSTS FOR MANUFACTURING METHYL METHACRYLATE FROM ISOBUTYLENE
WANG Lei;ZHANG Suojiang;LI Zengxi;LI Guihua;LI Mingxiu
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Abstract: The catalysts used for manufacturing methyl methacrylate (MMA) by two-step conversion of isobutylene via methacrolein (MAL) were studied. The selective oxidation of isobutylene to MAL was carried out in a fixed-bed flow microreactor using a series of Mo-Bi-containing catalysts and the oxidative esterification of MAL to MMA was carried out in a slurry-bed reactor using a series of palladium-containing catalysts.By means of BET and XPS, the properties of the catalysts were characterized.It was found that the performance of Mo-Bi-Co-Fe-Ce-O catalyst was improved distinctly when Cs was added for the selective oxidation of isobutylene to MAL, and the Pd5Bi2PbFe/CaCO3 catalyst with the loading sequence of Pd, Pb and Bi, Fe showed the best performance for the oxidative esterification of MAL to MMA.
王蕾;张锁江;李增喜;李桂花;李铭岫.
WANG Lei;ZHANG Suojiang;LI Zengxi;LI Guihua;LI Mingxiu.
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https://hgxb.cip.com.cn/CN/Y2004/V55/I12/2082