发明名称 |
PROCESS OF PREPARATION OF GLYOXYLIC ACID AQUEOUS SOLUTION |
摘要 |
<p>The invention relates to a method for preparing an aqueous solution of glyoxylic acid by oxidation of an aqueous solution of glyoxal with oxygen or a gas containing oxygen, in the presence of a catalytic quantity of nitric acid and/or at least one nitrogen oxide, a strong acid not oxidizing glyoxal, and by maintaining conditions satisfying the equation KLa/Q>10, where KLa is the total volumetric mass transfer coefficient and Q is the heat load liberated by the reaction per mole of glyoxal.</p> |
申请公布号 |
EP2262755(B1) |
申请公布日期 |
2011.11.02 |
申请号 |
EP20090703703 |
申请日期 |
2009.01.21 |
申请人 |
CLARIANT SPECIALTY FINE CHEMICALS (FRANCE) |
发明人 |
BLEGER, FRANCOIS;SIMON, OLIVIER;SCHOUTEETEN, ALAIN |
分类号 |
C07C51/27;C07C59/153 |
主分类号 |
C07C51/27 |
代理机构 |
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代理人 |
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主权项 |
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地址 |
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