Research on the Preparation of 2 ,5-diaminotoluenewith 2-aminoazotoluene Catalytic Hydrogenation
[1]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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Journal of Zhengzhou University (Engineering Science)[ISSN
1671-6833/CN
41-1339/T] Volume:
34
Number of periods:
2013 02
Page number:
21-24
Column:
Public date:
2013-03-28
- Title:
- Research on the Preparation of 2 ,5-diaminotoluenewith 2-aminoazotoluene Catalytic Hydrogenation
- Keywords:
- 2-aminoazotoluene; catalytic hydrogenation; 2 ; 5-diaminotoluene; synthesis
- CLC:
- TQ612.2
- DOI:
- 10.3969/j. issn.1671-6833.2013.00.006
- 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.
- References:
- -
- Similar References:
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Last Update:
1900-01-01