Preparation of sulfated alumina supported on mesoporous MCM-41 silica and its application in esterification

详细信息    查看全文

• 作者：Hui Pan ; Junxia Wang ; ^{wjx76@sina.com} ; Long Chen ; Guanghui Su ; Jiameng Cui ; Dawei Meng ; ^{dwmeng@cug.edu.cn} ; Xiuling Wu
• 关键词：Mesoporous ; Sulfated alumina ; MCM-41 ; Esterification ; Reusability
• 刊名：Catalysis Communications
• 出版年：2013
• 出版时间：5 May, 2013
• 年：2013
• 卷：35
• 期：Complete
• 页码：27-31
• 全文大小：777 K

文摘

New types of mesoporous SA/MCM-41 solid acid catalysts were prepared by loading sulfated alumina (SA) on MCM-41. The prepared catalysts were characterized by XRD, IR, N₂ physisorption, elemental analysis, FT-IR of adsorbed pyridine and NH₃-TPD. The esterification of acetic acid with n-butanol and citric acid with n-butanol were used as model reactions to test the catalytic activities and reusability of the SA/MCM-41 solid acid catalysts. Compared with SA catalyst, SA/MCM-41 catalysts exhibited higher catalytic performances, which were attributed to their high BET surface area and large pore volume. Moreover, 20SA/MCM-41 solid acid catalyst showed excellent reusability in both esterifications.