The study of the uncalcined Au catalyst and inorganic salts on direct gas-phase epoxidation of propylene |
| |
Authors: | Fushan Wang Caixia Qi Jiantai Ma |
| |
Affiliation: | aCollege of Chemistry and Chemical Engineering, Lanzhou University, Lanzhou 730000, PR China;bInstitute of Applied Catalysis, College of Chemistry and Biology, Yantai University, Yantai 264005, PR China |
| |
Abstract: | This paper presents the results of the propylene epoxidation in co-presence of hydrogen and oxygen on both dried and calcined Au catalysts, which were prepared by liquid grafting method using Me2Au(acac) as a precursor and trimethylsilylated Ti-MCM-48 as a support. The calcined catalyst shows PO activity at temperatures much higher and wider than the dried one. Addition of inorganic salts greatly modified the catalytic behaviors. CsNO3 could be a promising promoter whereas KBr led to the production of propionaldehyde instead of propylene oxide. |
| |
Keywords: | Gold catalyst Propylene epoxidation Silylation Promoter Me2Au(acac) |
本文献已被 ScienceDirect 等数据库收录! |