| DMF溶剂回收中抑制DMF水解的研究 |
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| 引用本文： | 田朋,潘志彦,邹霞,林春绵.DMF溶剂回收中抑制DMF水解的研究[J].环境科学与技术,2010,33(2). |
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| 作者姓名： | 田朋 潘志彦 邹霞 林春绵 |
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| 作者单位： | 浙江工业大学生物与环境工程学院,浙江,杭州,310032 |
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| 摘 要： | 二甲基甲酰胺(DMF)作为一种优良的工业溶剂和有机合成材料,其应用范围非常广泛。针对回收DMF存在的第二回收塔甲酸含量偏高、塔底釜残中DMF产出增大的问题,目前国内外学者以及各厂家均未从根本上解决此问题。文章采用向DMF回收系统加入二甲胺的方法,从化学平衡的角度研究了二甲胺在DMF回收系统中对甲酸生成的抑制作用,并将第二回收塔设计为减压蒸馏方式,其DMF回收率可提高25%。
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| 关 键 词： | 二甲基甲酰胺 二甲胺 第二回收塔 减压蒸馏 |
Inhibiting Effect of DMF Hydrolysis in DMF Recycling System |
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| TIAN Peng,PAN Zhi-yan,ZOU Xia,LIN Chun-mian.Inhibiting Effect of DMF Hydrolysis in DMF Recycling System[J].Environmental Science and Technology,2010,33(2). |
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| Authors: | TIAN Peng PAN Zhi-yan ZOU Xia LIN Chun-mian |
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| Institution: | College of Biological & Environmental Engineering;Zhejiang University of Technology;Hangzhou 310032;China |
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| Abstract: | As a kind of excellent industrial solvent and organic ersatz material,the application of N,N-dimethylformamide (DMF) is very comprehensive.However,the domestic and overseas scholars and corporations didn't solve the problem of high consistency of dimethylamine (DMAM) in the second reclaiming dephlegmator and richness of DMF in the bottom of the dephlegmator at present.The method of adding dimethylamine (DMAM) to the DMF recycling system was introduced.It was found that DMAM has the function of restraining f... |
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| Keywords: | DMF DMAM the second reclaiming dephlegmator pressure reduction distillation |
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