Unprecedented selectivities in aldol condensation over Mg-Al hydrotalcite in a fixed bed reactor setup

被引：33

作者：

Kikhtyanin, Oleg ^{[1
]}

Hora, Lukas ^{[1
]}

Kubicka, David ^{[1
]}

机构：

[1] UniCRE RENTECH, Res Inst Inorgan Chem, Litvinov 43670, Czech Republic

来源：

CATALYSIS COMMUNICATIONS | 2015年 / 58卷

关键词：

Aldol condensation; Hydrotalcites; Furfural; Acetone; MIXED-OXIDES; TRANSESTERIFICATION; CATALYSTS; METHANOL; ACETONE;

D O I：

10.1016/j.catcom.2014.09.002

中图分类号：

O64 [物理化学（理论化学）、化学物理学];

学科分类号：

070304 ; 081704 ;

摘要：

Aldol condensation of furfural with acetone (molar ratio 1:10) was carried out in a flow fixed bed setup at 50 degrees C using calcined hydrotalcite with Mg/Al of 3 as a catalyst. Complete conversion of furfural and stable catalyst performance was obtained during the initial 50 h on stream. This period was followed by a rapid catalyst deactivation. In contrast to previous reports, higher molecular weight products that were identified as products of successive aldol condensation of acetone with furfural were observed. Their concentration was time-dependent with a maximum formation after 10 to 30 h on stream. (C) 2014 Elsevier B.V. All rights reserved.

引用

页码：89 / 92

页数：4

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