期刊
APPLIED CATALYSIS A-GENERAL
卷 455, 期 -, 页码 155-163出版社
ELSEVIER
DOI: 10.1016/j.apcata.2013.01.026
关键词
Self-metathesis; Methyloleate; Methyltrioxorhenium (MTO); ZnCl2-promoted mesoporous alumina
资金
- Natural Sciences and Engineering Research Council of Canada
Methyltrioxorhenium impregnated on ZnCl2-modified mesoporous alumina at Al/Zn ratio of 8-12 was revealed as an effective catalyst for self-metathesis of methyloleate at mild reaction conditions. The use of other promoters either in form of metal chlorides or as other zinc halides did not promote the metathesis of methyloleate as zinc chloride. The enhancement of the activity was not only due to the chloride and/or zinc but could be attributed Lathe interaction of both elements as Zn-Cl or Zn-Cl-2 bonds with the mesoporous alumina. The results of this research suggest that it is possible to design a heterogeneous catalyst for the efficient and selective self-metathesis of functionalized olefins such as methyloleate and edible oils, avoiding the utilization of expensive homogeneous catalysts or use of toxic promoters such as SnR4 with heterogeneous catalysts. (c) 2013 Elsevier B.V. All rights reserved.
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