摘要
采用浸渍、还原法制备了不同活性炭负载铂(Pt/AC)催化剂,考察了其催化3,4-二甲基硝基苯、3-戊酮和氢气一锅法制备N-(1-乙基丙基)-3,4-二甲基苯胺性能,并用氮气物理吸附、XRD对它们的结构进行了表征。结果表明,大孔径的活性炭负载0.5%Pt对催化3,4-二甲基硝基苯、3-戊酮和氢气制备N-(1-乙基丙基)-3,4-二甲基苯胺具有优异性能。在3,4-二甲基硝基苯/催化剂质量比为100∶1、373 K、1.0 MPa氢气、反应120 min的最佳反应条件下,N-(1-乙基丙基)-3,4-二甲基苯胺选择性达99.1%。
Various activated carbons supported Pt catalysts were prepared by impregnation reduction method and investigated for synthesis of N-(1-ethylpropyl)-3,4-dimethylaniline from 3,4-dimethyl nitrobenzene,3-pentanone and hydrogen. Their structures were characterized by N2 adsorption-desorption and Xray diffraction. It was found that the activated carbon with large pore size supported 0. 5% Pt exhibited better catalytic performance for synthesis of N-( 1-ethylpropyl)-3,4-dimethylaniline from 3,4-dimethyl nitrobenzene,3-pentanone and hydrogen. The yield of N-( 1-ethylpropyl)-3,4-dimethylaniline could reach99. 1% in 120 min under the optimal reaction conditions of 3,4-dimethyl nitrobenzene and catalyst at a mass ratio of 100∶ 1,373 K and 1. 0 MPa H2.
作者
何燕秋
何代平
胡荣启
何青青
银莹
HE Yan-qiu;HE Dai-ping;HU Rong-qi;HE Qing-qing;YIN Ying(Key Lab of Green Synthesis and Applications,Ministry of Education Engineering Research Center of Biotechnology of Active Substances,College of Chemistry,Chongqing Normal University,Chongqing 401331,China)
出处
《应用化工》
CAS
CSCD
北大核心
2019年第6期1378-1381,共4页
Applied Chemical Industry
基金
重庆市社会事业与民生保障科技创新项目(cstc2016shmszx20004)
重庆市基础科学与前沿技术研究项目(cstc2018jcyjAX0698)
