双氧水氧化乙二醛合成乙醛酸的研究

Synthesis of Glyoxylic Acid by Oxidation of Glyoxal with H_2O_2

在催化剂存在下，用双氧水氧化乙二醛溶液快速合成了乙醛酸。优化的合成条件为：n（H2O2）：n（乙二醛）=1．10：1．00、反应温度3-8℃、反应时间3h，此时，乙二醛转化率为85％、乙醛酸产率为70．3％。

Glyoxylic acid was rapidly synthesized by catalytic oxidation of glyoxal with H2 O2. The optimum conditions of synthesis were as follows.molar ratio of H2O2 to glyoxal= 1.10 ： 1.00, reaction temperature 3- 8℃ and reaction time 3 h. Percentage conversion of glyoxal was 85% ,yield of glyoxylic acid was 70.3%.