The improve of Synthesis for Glyoxylic Acid by Oxugen.
You Zhang
Abstract
You Zhang
Abstract
Glyoxylic acid was satisfyingly synthesiaed by controlling oxidation of glyoxal with oxygen and using substituti on of multifunctional material as catalyst. Percentage conversion of glyoxal is ≥98%,yield of glyoxylic acid 93%. The method using new catalyst avoids producing salts. The optimun condition of synthesis follow:pH of medium 1, w(OHCCHO)≥16%,total pressure of oxygen and other gas 0 12MPa,reaction temperature 40~60?℃ and reacting time 2~3h.
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Glyoxylic acid was satisfyingly synthesiaed by controlling oxidation of glyoxal with oxygen and using substituti on of multifunctional material as catalyst. Percentage conversion of glyoxal is ≥98%,yield of glyoxylic acid 93%. The method using new catalyst avoids producing salts. The optimun condition of synthesis follow:pH of medium 1, w(OHCCHO)≥16%,total pressure of oxygen and other gas 0 12MPa,reaction temperature 40~60?℃ and reacting time 2~3h.
Key concepts: Glyoxylic acid, Chemistry, Glyoxal, Yield (engineering), Catalysis, Oxygen, Organic chemistry, Nuclear chemistry