Dehydration of 1,5-pentanediol over bixbyite Sc_2-xYb_xO₃ catalysts

详细信息    查看全文

• 作者：Fumiya Sato ; Satoshi Sato
• 关键词：Rare earth mixed oxide ; Dehydration ; 1 ; 5-pentanediol ; 4-Penten-1-ol
• 刊名：Catalysis Communications
• 出版年：2012
• 出版时间：5 October, 2012
• 年：2012
• 卷：27
• 期：Complete
• 页码：129-133
• 全文大小：657 K

文摘

Vapor-phase dehydration of 1,4- and 1,5-alkanediols was investigated over three scandium ytterbium mixed oxides, Sc_2-xYb_xO₃ (x = 0.5, 1.0, and 1.5), to produce the corresponding unsaturated alcohols. In the dehydration of 1,5-pentanediol, Sc_0.5Yb_1.5O₃ was more active than simple rare earth oxides such as Sc₂O₃, Lu₂O₃, Yb₂O₃, and Tm₂O₃. The selectivity to 4-penten-1-ol surpassed 80 mol % over the Sc_2-xYb_xO₃ catalysts. The highest formation rate of 4-penten-1-ol was obtained at x = 1.5 and affected by lattice parameter of cubic bixbyite Sc_2-xYb_xO₃. In the dehydration of 1,4-butanediol, however, Tm₂O₃ was the most active among the catalysts.