期刊
REACTION KINETICS AND CATALYSIS LETTERS
卷 75, 期 1, 页码 117-126出版社
AKADEMIAI KIADO
DOI: 10.1023/A:1014857703817
关键词
carbohydrates; levulinic acid; acid-catalyzed degradation; Hammett acidity function
The kinetic curves of levulinic acid accumulation in the process of saccharide dehydration at 80-98degreesC are compared. The structural features of the substrates and 5-hydroxymethylfurfural, which is the intermediate of the process, explain the observed difference in the rates of fructose and glucose conversion. Sulfuric acid can be effectively used under moderate conditions to synthesize levulinic acid with yields exceeding 35 mol % for glucose and 50% for sucrose at 98degreesC.
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