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《南京理工大学学报》（自然科学版）[ISSN:1005-9830/CN:32-1397/N]

卷:

期数:

1996年02期

页码:

21-24

栏目:

出版日期:

1996-04-30

文章信息/Info

Title:

The Study on the Best Technological Conditions of Selective Nitration of Acetanilide

作者:

吕春绪; 顾建良

南京理工大学化工学院, 南京210094

Author(s):

Lu Chunxu Gu Jianliang

School of Chemical Engineering, NUST, Nanjing 210094

关键词:

乙酰苯胺;  选择性;  硝基化;  正交试验;  工艺;  条件

Keywords:

acetanilide;  select ivity;  nit rat io n;  orthogonal test s;  technolog y;  condit ion

分类号:

O633.22

摘要:

乙酰苯胺经选择性硝化可得重要的有机中间体对硝基乙酰苯胺。目前工业上采用混酸低温硝化，反应时间长，能耗大。该文通过乙酰苯胺硝化的单因素及正交试验，得到了制备对硝基乙酰苯胺的最佳工艺条件，与现行工艺相比，反应温度由５℃提高到２０℃，反应时间由２０ｈ缩短到２ｈ，降低生产成本，提高生产能力。

Abstract:

Select ive nit rat io n o f acetanilide prov ides 4-nit roacetanilide, served as useful intermediates. At pr esent it is carried out in mixed acid at low temper ature, therefore the long react ion t ime and more ener gy consumpt ion are required. In this paper the best techno logical condit ions for preparing 4-nit roacetanilide are obtained through par ameters and orthog onal test . Compared w ith the existing methods, the react ion temperature is raised fr om 5 ℃ to 20 ℃ and the r eaction t ime r educed fr om 20 h to 5 h, therefore the pro duct ion co st is cut dow n and the productiv ity is raised.

备注/Memo

备注/Memo:

国家教委高校博士点专项科研基金项目
吕春绪　男　52 岁　教授

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更新日期/Last Update: 2013-04-11