A new chemical process for catalytic conversion Of D-glucose into lactic acid and gluconic acid

被引:110
|
作者
Onda, Ayumu [1 ]
Ochi, Takafumi [1 ]
Kajiyoshi, Koji [1 ]
Yanagisawa, Kazumichi [1 ]
机构
[1] Kochi Univ, Fac Sci, Res Lab Hydrothermal Chem, Kochi 7808073, Japan
关键词
lactic acid; gluconic acid; glucose; alkaline degradation; Pt/C;
D O I
10.1016/j.apcata.2008.03.017
中图分类号
O64 [物理化学(理论化学)、化学物理学];
学科分类号
070304 ; 081704 ;
摘要
In this work, the catalytic conversion of monosaccharides, such as D-glucose, D-fiructose, D-mannose, Dgalactose, and D-Xylose, into lactic acid and alclonic acid in an alkaline media using supported noble metal catalysts under flowing air was investigated. Thus far, the conventional chemical conversions Of D-glucose into lactic acid, such as alkaline degradations and hot water reactions, involved large amounts of by-products including unidentified compounds. To improve the atom economy for the D-glucose conversion, we examined a one-pot reaction of D-glucose into lactic acid and gluconic acid with the alkaline degradation and the air oxidation using supported metal catalysts. It succeeded in yielding about 45 C-% of lactic acid and about 45 C-% of gluconic acid from D-glucose using Pt/C catalysts with a 1.0 mol L-1 of sodium hydroxide aqueous solution at 353 K under flowing air. (C) 2008 Elsevier B.V. All rights reserved.
引用
收藏
页码:49 / 54
页数:6
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