镁对氧化铁系脱氢催化剂相变温度的影响  

Effect of Mg Promoter on the Temperature of Phase Transformation in Fe_2O_3-Based Catalysts of Dehydrogenation

作　　者：祝以湘 雷德斌 戴深峻 沈若范 

出　　处：《厦门大学学报（自然科学版）》1994年第S1期180-183,共4页Journal of Xiamen University：Natural Science

基　　金：中国石化总公司资助项目

摘　　要：ＸＲＤ研究发现，通过向Ｆｅ＿２Ｏ＿３－Ｋ＿２Ｏ体系引入镁，可使多铁酸钾相的形成温度降低２００℃左右。并讨论了多铁酸钾作为储钾相的可能性及镁的助催作用本质。It was found by XRD studying that the formation temperature of polrferritescould be decreased about 200 ℃ by introducing Mg into Fe_2O_3-K_2O system. The possibility of polyfer-rtites playing a role as the storage phase for potassium and the nature of Mg promotion in Fe_2O_3-basedcatalysts were also discussed.

关 键 词：脱氢 氧化铁催化剂 铁酸盐 镁助催剂 

分 类 号：O611.62[理学—无机化学]