发明名称 |
NEW CONTINUOUS INDUSTRIAL MANUFACTURING PROCESS FOR AN AQUEOUS SOLUTION OF GLYOXYLIC ACID |
摘要 |
Continuous manufacturing process for an aqueous solution of glyoxylic acid by nitric oxidation of an aqueous solution of glyoxal carried out in the presence of hydrochloric acid in which the oxidation is effected continuously using 0.80+/-0.2 mole of nitric acid and 0.70+/-0.05 mole of hydrochloric acid per mole of glyoxal in a reaction medium having a concentration by weight between 5 and 6% of hydrochloric acid and higher than 10% of nitric acid.
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申请公布号 |
US5138096(A) |
申请公布日期 |
1992.08.11 |
申请号 |
US19900614521 |
申请日期 |
1990.11.16 |
申请人 |
SOCIETE FRANCAISE HOECHST |
发明人 |
SCHOUTEETEN, ALAIN;ALARCON, JEAN-MICHEL |
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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