| 氧气法合成乙醛酸的中试研究 |
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| 引用本文： | 张友恭,张昭,彭莉,孙丽娟.氧气法合成乙醛酸的中试研究[J].精细化工,2002,19(8):479-481. |
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| 作者姓名： | 张友恭 张昭 彭莉 孙丽娟 |
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| 作者单位： | 西北轻工业学院化工系,陕西咸阳,712081 |
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| 摘 要： | 中试结果表明 ,在复合催化剂作用下 ,用低压氧气氧化乙二醛水溶液 ,可成功合成乙醛酸。电位滴定跟踪反应过程 ,可满意监控乙二醛反应程度。此反应乙二醛转化率 99% ,乙醛酸收率(以乙二醛为基准 ) 94 %。优化工艺为 :介质 pH <1,釜内氧气、水气等混合气体总压 0 12～ 0 13MPa ,w(乙二醛 ) =15 5 6 % ,反应温度 4 5～ 6 0℃ ,时间 4h。
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| 关 键 词： | 乙醛酸 乙二醛 氧化 |
| 文章编号： | 1003-5214(2002)08-0479-03 |
Study of Trial Production for Synthesis of Glyoxylic Acid by Oxygen Method |
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| ZHANG You gong,ZHANG Zhao,PENG Li,SUN Li juan.Study of Trial Production for Synthesis of Glyoxylic Acid by Oxygen Method[J].Fine Chemicals,2002,19(8):479-481. |
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| Authors: | ZHANG You gong ZHANG Zhao PENG Li SUN Li juan |
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| Abstract: | The results of trial production showed that glyoxylic acid(Ⅰ) was successfully synthesized by controlled oxidation of glyoxal(Ⅱ) with low pressure oxygen under the effect of catalysts.Percentage conversion of Ⅱ was 99%,yield of I was 94%.The optimum reaction conditions were:pH of medium<1,totol pressure of oxygen and other gas in reactor 0 12-0 13 MPa, w (Ⅱ)=15 56%,reaction temperature 45-60 ℃ and reaction time 4 h. |
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| Keywords: | glyoxylic acid glyoxal oxygen oxidation |
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