制备条件对B_2O_3/TiO_2-ZrO_2催化剂结构的影响  

Effect of preparation condition on the structure of B_2O_3/TiO_2-ZrO_2 catalyst

作　　者：袁晓红[1] 毛东森[1] 姚源[1] 

机构地区：[1]中石化上海石油化工研究院,上海201208

出　　处：《工业催化》2003年第2期42-45,共4页Industrial Catalysis

摘　　要：采用XRD和低温氮吸附等测试方法,研究了制备条件对TiO2 ZrO2催化剂的结构性质和催化性能的影响。结果表明,选择合适的焙烧温度,并用适量的B2O3改性后,能大大改善催化剂的孔结构参数;孔分布向更大的中孔方向移动,使反应物分子可到达的孔体积增大,提高了催化剂的内表面利用率,有利于环己酮肟气相Beckmann重排反应的进行。Effect of preparation condition on the structure and catalytic activity of B2O3/TiO2ZrO2 catalyst was investigated. The results showed that calcination temperature and addition of boron oxide affect its pore structure and activity. The effect of addition of boron oxide was discussed.

关 键 词：制备条件 B2O3/TiO2-ZrO2催化剂 影响 焙烧温度 孔结构 比表面 

分 类 号：TQ426.8[化学工程]