第 37 卷第 1 期 |  | Vol. 37 No. 1 | 2007 年 2 月 | Feb 2007 |
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所屬欄目:有機合成原料
氯油制備氯仿聯(lián)產(chǎn)二甲基甲酰胺 |
舒均杰1,2,周繼承2
(1. 湖南化工職業(yè)技術(shù)學(xué)院,湖南 株洲 412004;2. 湘潭大學(xué) 化工學(xué)院,湖南 湘潭 411105) |
摘 要:研究了氯油加堿除酸后和二甲胺水溶液反應制備氯仿和N,N-二甲基甲酰胺(DMF)的新工藝路線(xiàn),通過(guò)正交實(shí)驗對工藝條件進(jìn)行優(yōu)化,得到的優(yōu)化合成工藝條件為:反應溫度為50℃,保溫反應時(shí)間為60 min,n(二甲胺) ∶ n(氯油)=1 ∶ 1.10。在此條件下,氯仿-醛收率為94.02%,DMF-醛收率為92.05%。新工藝小試產(chǎn)品和氯仿質(zhì)量達到國標GB 4118-92 優(yōu)等品要求,DMF 產(chǎn)品達到HG 2028-91 標準要求。 |
關(guān)鍵詞:氯油;氯仿;二甲基甲酰胺 |
中圖分類(lèi)號:TQ225.26+1 文獻標識碼:A 文章編號:1009-9212(2007)01- 0061 - 03 |
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Preparation of Chloroform United Production Dimethyl Formamide with Chlorine Oil |
SHU Jun-jie1,2,ZHOU Ji-cheng2
(1. Hunan Chemical Industry Profession and Technology College,Zhuzhou 412004,China;2. Chemical Engineering College of Xiangtan University,Xiangtan 411105,China) |
Abstract:A new synthesis process for chloroform and dimethylformamide by the reaction of alkalizing and deacidifying chlorine oil and dimethylamine was studied. The process conditions were optimized by orthogonal experiments as follows: the reaction temperature was 50℃,the holding time 60 min,dimethylamine and chlorine oil ingredient mol ratio 1 ∶ 1.10.Under the conditions,the yield of chloroform-aldehyde and DMF-aldehyde was 94.02% and 92.05%,respectively. The quality of pilot product produced by the new process is better than that of the product produced by lime process,the quality of chloroform met the high-class required by National Standard GB 4118 -92,DMF products met the requirement of HG 2028 - 91. |
Key words:chlorine oil;chloroform;dimethylformamide |
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作者簡(jiǎn)介:舒均杰(1955-),男,湖南懷化人,副教授,碩士研究生,研究方向:化學(xué)工程與工藝技術(shù)。(E-mail:hnshujunjie@163.com)
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聯(lián) 系 人:周繼承,教授,博士生導師。研究方向:工業(yè)催化劑領(lǐng)域與納米材料技術(shù)。(E-mail:zhoujicheng@sohu.com)
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收稿日期:2006-10-30
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