[1]王留成,张磊,赵建宏,等.2-氨基偶氮甲苯催化加氢合成2,5-二氨基甲苯[J].郑州大学学报(工学版),2013,34(02):21-24.[doi:10.3969/j. issn.1671-6833.2013.00.006]
　WANG Liu-cheng,ZHANG Lei,ZHAO Jian-hong,et al.Research on the Preparation of 2 ,5-diaminotoluenewith 2-aminoazotoluene Catalytic Hydrogenation[J].Journal of Zhengzhou University (Engineering Science),2013,34(02):21-24.[doi:10.3969/j. issn.1671-6833.2013.00.006]
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2-氨基偶氮甲苯催化加氢合成2,5-二氨基甲苯()
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《郑州大学学报(工学版)》[ISSN:1671-6833/CN:41-1339/T]

卷:
34卷
期数:
2013年02期
页码:
21-24
栏目:
出版日期:
2013-03-28

文章信息/Info

Title:
Research on the Preparation of 2 ,5-diaminotoluenewith 2-aminoazotoluene Catalytic Hydrogenation
作者:
王留成; 张磊; 赵建宏; 等.
郑州大学化工与能源学院,河南郑州,450001, 郑州大学化工与能源学院,河南郑州,450001, 郑州大学化工与能源学院,河南郑州,450001, 郑州大学化工与能源学院,河南郑州,450001, 郑州大学化工与能源学院,河南郑州,450001
Author(s):
WANG Liu-cheng; ZHANG Lei; ZHAO Jian-hong; SONG Cheng-ying; WANG Jian-she
School of Chemical Engineering and Energy , Zhengzhou University , Zhengzhou 450001 ，China
关键词:
2-氨基偶氮甲苯;  催化加氢;  2;  5-二氨基甲苯;  合成
Keywords:
2-aminoazotoluene;  catalytic hydrogenation;  2 ; 5-diaminotoluene;  synthesis
分类号:
TQ612.2
DOI:
10.3969/j. issn.1671-6833.2013.00.006
文献标志码:
A
摘要:
研究以2-氨基偶氮甲苯为原料,活性镍为催化剂,甲醇水溶液为溶剂,催化加氢工艺合成2,5-二氨基甲苯.考察了反应时间、温度、氢气压力、催化剂用量、溶液pH值以及溶剂体积等因素对反应的影响.结果表明,使用30％的甲醇水溶液作为溶剂,在反应时间为6h、温度为80℃、压力为1.4 MPa、催化剂用量为7％,溶液的初始pH为8时,2,5-二氨基甲苯的收率达95％以上.
Abstract:
The optimum technological condition of catalytic hydrogenation for synthesis of 2,5-diaminotolueneby using 2-aminoazotoluene as raw materials,nickel as catalyst,water and methanol as solvent is studied. Theauthor examines the reaction time,temperature,hydrogen pressure,catalytic dose, the pH value of the solu-tion,and proportion of materials that influence on the reaction. The results show that the 2,5-diaminotolueneyield is 95% ,when the solvent is 70% water and 30% methanol,the reaction time is 6 h, the temperature is80 ℃,pressure is 1.4 Mpa,catalytic dose is 7%,solution of the initial pH value is 8.

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更新日期/Last Update: 1900-01-01