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1120224 
Journal Article 
Catalytic acetylation of glycerol with acetic anhydride 
Silva, LN; Goncalves, VLC; Mota, CJA 
2010 
Yes 
Catalysis Communications
ISSN: 1566-7367 
11 
12 
1036-1039 
WOS:000279618100010 
We studied the acetylation of glycerol with acetic anhydride using different solid acid catalysts. The results indicated that at 60 degrees C, zeolite Beta and K-10 Montmorillonite showed 100% selectivity to triacetin within 20 min, with a molar ratio of 4:1. Amberlyst-15 acid resin yielded 100% triacetin after 80 min, whereas niobium phosphate gave diacetin and triacetin in 53% and 47% selectivity, respectively. All catalysts were more selective to triacetin than the uncatalyzed reaction. By contrast, zeolite Beta gave poor yield of triacetin when acetic acid was used as acetylating agent. The different behavior was explained in terms of the stabilization of the acylium ion intermediate. (C) 2010 Elsevier B.V. All rights reserved. 
Glycerol; Triacetin; Zeolites; Acid catalysis 
• Methanol (Non-Cancer)
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