节点文献
硝基苯加氢制对氨基苯酚Pt/C催化性能研究
Study on activity of Pt/C catalyst for hydrogenation of nitrobenzene
【摘要】 研究硝基苯催化加氢工艺,发现Pt/C催化剂比表面积与其催化活性关系不大,控制反应速度和反应工艺条件,可得到高收率的对氨基苯酚;控制反应时间在2h内可减少杂质二胺基二苯醚的生成,提高产品纯度。考察H2中O2含量的影响,发现在10×10-6~2000×10-6范围内,O2浓度对催化剂性能没有显著影响
【Abstract】 Synthesis of para aminophenol(PAP)is studied by hydrogenation of nitrobenzene over a Pt/C catalyst.It is found that the activity of the catalyst has little to do with its surface area and a high yield of PAP can be obtained through controlling reaction speed and conditions. The formation of PhNH 2 and DADPE can be inhibited by shortening reaction time.The results also show that the content of O 2 in H 2 ranging from (10~2000)×10 -6 has little effect on the yield of PAP.
【关键词】 硝基苯;
催化加氢;
对氨基苯酚;
重排;
【Key words】 Abstract: nierobenzene; catalytic hydrogenation; para aminophenol; rearrangement;
【Key words】 Abstract: nierobenzene; catalytic hydrogenation; para aminophenol; rearrangement;
【基金】 四川省青年科技基金
- 【文献出处】 天然气化工 ,Natural Gas Chemical Industry , 编辑部邮箱 ,1998年06期
- 【分类号】TQ246.3
- 【被引频次】18
- 【下载频次】149