Autori: Chunli Xu, Dan I. Enache, Rhys Lloyd, David W. Knight, Jonathan K. Bartley, Graham J. Hutchings

Editorial: Catalysis Letters, 138 (1-2), p.1-7, 2010.

Rezumat:

A series of MgO catalysts have been prepared
by calcination of (MgCO3)4Mg(OH)2 and these have been
found to be effective for the transesterification of triglycerides
with methanol at 200 C. The calcination temperature
controls the surface area, porosity and the surface
structure and we observe that the optimal calcination
temperature is in the range 550-700 C as this provides a
balance between high surface area, and hence high concentration
of active sites, and the pore structure which
permits access of the reactants. Using appropriate conditions
conversions in excess of 98% could be obtained.

Cuvinte cheie: Triglyceride transesterification, Biodiesel, Magnesium oxide

URL: www.springerlink.com/index/NM71M308X8L0M455.pdf