Staff Publications

Staff Publications

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    'Staff publications' is the digital repository of Wageningen University & Research

    'Staff publications' contains references to publications authored by Wageningen University staff from 1976 onward.

    Publications authored by the staff of the Research Institutes are available from 1995 onwards.

    Full text documents are added when available. The database is updated daily and currently holds about 240,000 items, of which 72,000 in open access.

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Record number 450084
Title On the role of the activation procedure of supported hydrotalcites for base catalyzed reactions: Glycerol to glycerol carbonate and self-condensation of acetone
Author(s) Alvarez, M.G.; Frey, A.M.; Bitter, J.H.; Segarra, A.M.; Jong, K.P. de; Medina, F.
Source Applied Catalysis B-Environmental 134-135 (2013). - ISSN 0926-3373 - p. 231 - 237.
DOI https://doi.org/10.1016/j.apcatb.2013.01.011
Department(s) Biobased Chemistry and Technology
VLAG
Publication type Refereed Article in a scientific journal
Publication year 2013
Keyword(s) claisen-schmidt condensation - mg-al hydrotalcite - solid base - aldol condensation - nanofibers - hydroxides - chemicals
Abstract Bulk and carbon nanofiber supported MgAl hydrotalcites have been investigated as solid base catalysts for the synthesis of glycerol carbonate and dicarbonate and for the self-condensation of acetone. The supported materials exhibited a 300 times higher activity compared to bulk activated hydrotalcites for the transesterification. The materials could be reused while maintaining a high yield of glycerol carbonate. The activity of the mixed oxide, i.e., hydrotalcite materials after high temperature activation was considerably higher than both gas-phase and liquid phase rehydrated samples for the glycerol reactions. In contrast in the acetone self-condensation reaction the rehydrated samples were more active. This indicates that the polarity of the catalyst related to the reactant properties has a huge impact on the performance of a solid base catalyst.
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