第 37 卷第 1 期 | | Vol. 37 No. 1 | 2007 年 2 月 | Feb 2007 |
|
所属栏目:有机合成原料
氯油制备氯仿联产二甲基甲酰胺 |
舒均杰1,2,周继承2
(1. 湖南化工职业技术学院,湖南 株洲 412004;2. 湘潭大学 化工学院,湖南 湘潭 411105) |
摘 要:研究了氯油加碱除酸后和二甲胺水溶液反应制备氯仿和N,N-二甲基甲酰胺(DMF)的新工艺路线,通过正交实验对工艺条件进行优化,得到的优化合成工艺条件为:反应温度为50℃,保温反应时间为60 min,n(二甲胺) ∶ n(氯油)=1 ∶ 1.10。在此条件下,氯仿-醛收率为94.02%,DMF-醛收率为92.05%。新工艺小试产品和氯仿质量达到国标GB 4118-92 优等品要求,DMF 产品达到HG 2028-91 标准要求。 |
关键词:氯油;氯仿;二甲基甲酰胺 |
中图分类号:TQ225.26+1 文献标识码:A 文章编号:1009-9212(2007)01- 0061 - 03 |
|
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 |
|
作者简介:舒均杰(1955-),男,湖南怀化人,副教授,硕士研究生,研究方向:化学工程与工艺技术。(E-mail:hnshujunjie@163.com)
|
联 系 人:周继承,教授,博士生导师。研究方向:工业催化剂领域与纳米材料技术。(E-mail:zhoujicheng@sohu.com)
|
收稿日期:2006-10-30
|
阅读全文 |
|