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Efficient Conversion of Bio-Lactic Acid to 2,3-Pentanedione on Cesium-Doped Hydroxyapatite Catalysts with Balanced Acid-Base Sites.
- Source :
- ChemCatChem; 12/20/2017, Vol. 9 Issue 24, p4621-4627, 7p
- Publication Year :
- 2017
-
Abstract
- We report the design and synthesis of cesium-doped hydroxyapatite for direct and high-yield conversion of biobased lactic acid to 2,3-pentanedione (72.3 %). Cs species derived from CsNO<subscript>3</subscript> at high temperature of calcination is introduced into the hydroxyapatite structure to regulate its acid-base properties. It is found that a balance of acid-base chemistry favors the condensation of lactic acid to 2,3-pentanedione. As a result, the undesired reactions such as lactic acid dehydration, decarbonylation, and coking are suppressed. Instead, a concerted catalysis between surface basic site and acidic site for lactic acid condensation to 2,3-pentanedione dominates on the cesium-doped hydroxyapatite catalyst, leading to a highly selective process for direct conversion of bio-lactic acid to 2,3-pentanedione. [ABSTRACT FROM AUTHOR]
Details
- Language :
- English
- ISSN :
- 18673880
- Volume :
- 9
- Issue :
- 24
- Database :
- Complementary Index
- Journal :
- ChemCatChem
- Publication Type :
- Academic Journal
- Accession number :
- 126886396
- Full Text :
- https://doi.org/10.1002/cctc.201701332