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정정조,문동주,김영철,박남국,신재순 한국공업화학회 2002 응용화학 Vol.6 No.2
Epoxidation of propylene to propylene oxide over the modified silver catalyst was investigated in an atmospheric fixed bed flow reactor. Promoted catalysts were prepared by deposition-precipitation, and characterized by X-ray diffraction(XRD) and N_2 Physisorption. Silver catalysts modified NaCl, BaCl_2 and CaCl_2 were higher selectivity than those modified LiCl and MgCl_2. It was found that l0wt.% NaCl/Ag catalyst was showed higher selectivity than the other catalysts under tested reaction conditions. It can be interpreted that the AgCl formed in the preparation process may be changed the property of silver catalyst, which is effective for propylene epoxidation.