钾含量对乙苯脱氢催化剂中KFe_(11)O_(17)物相形成的影响  

Effect of K_2O on forming of KFe_(11)O_(17) in catalyst for ethylbenzene dehydrogenation

作　　者：范勤[1] 袁怡庭[1] 朱明[1] 毛连生[1] 蒋可玉[2] 杨燮龙[2] 

机构地区：[1]上海石油化工研究院,上海201208 [2]华东师范大学物理系,上海200062

出　　处：《石化技术与应用》2003年第2期99-101,共3页Petrochemical Technology & Application

摘　　要：应用穆斯堡尔谱学和X -射线衍射技术 ,研究了钾含量对乙苯脱氢铁钾系催化剂中KFe11O17物相形成的影响。发现催化剂中氧化钾质量分数为 1 0 %左右时对形成KFe11O17物相较有利 ,而KFe11O17物相的存在有利于提高催化剂的性能。The effect of K 2O on the forming of KFe 11 O 17 in catalyst for the ethylbenzene dehydrogenation was studied by Mossbauer spectroscopy and X-ray diffraction methods.The results showed that the catalyst containing about 10% of K 2O could easily form KFe 11 O 17 .The KFe 11 O 17 with spinel structure was useful for increasing the activity of catalyst used in ethylbenzene dehydrogenation to styrene.

关 键 词：钾 含量 乙苯 脱氢催化剂 KFe11O17 物相 形成 影响 铁钾系催化剂 铁钾尖晶石 

分 类 号：TQ241.1[化学工程—有机化工] TQ426.94