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γ-Al2O3负载杂多酸催化合成二甲醚
Preparation of Dimethylether Via Methanol Condensation Catalyzed by Loaded Heteropoly Acid
【摘要】 用浸渍法制备了Ｈ４ＳｉＷ１２Ｏ４０－Ｔｉ（ＳＯ４）２－Ｌɑ２Ｏ３－γ－Ａｌ２Ｏ３（ＨＴＬＡ）复合催化剂，以吡啶作为化学探针分子，研究了ＨＴＬＡ及γ－Ａｌ２Ｏ３的表面酸性质，并将ＨＴＬＡ作为催化剂，用于甲醇缩合制二甲醚的模型反应，对催化剂的活性进行了探讨
【Abstract】 A catalyst of H 4SiW 12 O 40 -Ti(SO 4) 2-Lɑ 2O 3-γ-Al 2O 3 prepared by the impregnation method was used for condensation of methanol to form dimethylether. The effects of reaction temperation, calcination temperature of the catalyst, Weight hourly space velocity and loading of heteropoly acid on catalytic activity and selectivity were studied. The stability and acidity of the catalyst were investigated as well.
【基金】 国家自然科学基金,吉林省科委资助
- 【文献出处】 东北师大学报(自然科学版) ,JOURNAL OF NORTHEAST NORMAL UNIVERSITY (NATURAL SCIENCE EDITION) , 编辑部邮箱 ,1997年04期
- 【分类号】O623.617
- 【被引频次】37
- 【下载频次】191