期刊
APPLIED CLAY SCIENCE
卷 51, 期 1-2, 页码 165-169出版社
ELSEVIER
DOI: 10.1016/j.clay.2010.10.020
关键词
Biodiesel; Esterification; Halloysite; Lauric acid
资金
- Brazilian research agency CNPq
- Brazilian research agency CAPES
- Brazilian research agency FINEP
The methylic and ethylic esterifications of lauric acid were investigated using raw halloysite as a catalyst, in heterogeneous media. The reactions were conducted with different molar ratios (alcohol:lauric acid) and proportions of catalyst, at 160 degrees C for 2 h in a pressurized steel reactor. Halloysite produced lauric acid conversion of 95.02% and 87.11% for the methylic and ethylic esterifications, respectively. These results were better than those obtained from thermal conversion (75.61% and 59.86% for methanol and ethanol, respectively). After four consecutive reaction cycles, halloysite was recovered and could be reused after washing and drying. The results showed that halloysite is a promising inexpensive and reusable material for esterification reactions involving fatty acids. (C) 2010 Elsevier B.V. All rights reserved.
作者
我是这篇论文的作者
点击您的名字以认领此论文并将其添加到您的个人资料中。
推荐
暂无数据