|本期目录/Table of Contents|

[1]石春杰,邵鑫鑫,聂 文,等.稀土离子改性膨润土对联苯的选择性硝化[J].武汉工程大学学报,2016,38(4):337-342.[doi:10. 3969/j. issn. 1674?2869. 2016. 04. 006]
 SHI Chunjie,SHAO Xinxin,NIE Wen,et al.Selective Nitration of Biphenyl by Rare-Earth Ions Modified Bentionite[J].Journal of Wuhan Institute of Technology,2016,38(4):337-342.[doi:10. 3969/j. issn. 1674?2869. 2016. 04. 006]
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稀土离子改性膨润土对联苯的选择性硝化(/HTML)
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《武汉工程大学学报》[ISSN:1674-2869/CN:42-1779/TQ]

卷:
38
期数:
2016年4期
页码:
337-342
栏目:
化学与化学工程
出版日期:
2016-08-28

文章信息/Info

Title:
Selective Nitration of Biphenyl by Rare-Earth Ions Modified Bentionite
作者:
石春杰12邵鑫鑫1聂 文1邰燕芳 12*
1. 安徽蚌埠学院应用化学与环境工程系,安徽 蚌埠 233030;2. 蚌埠学院化工应用技术开发研究所,安徽 蚌埠 233030
Author(s):
SHI Chunjie12 SHAO Xinxin1 NIE Wen1 TAI Yanfang12*
1. School of Applied Chemistry and Environmental Engineering, Bengbu University, Bengbu 233000, China;2. Institute of Chemical Application Technology Development, Bengbu University, Bengbu 233000,China
关键词:
膨润土催化硝化稀土离子联苯选择性
Keywords:
bentionite catalytic nitration rare-earth ions biphenyl selectivity
分类号:
TQ246;TQ204
DOI:
10. 3969/j. issn. 1674?2869. 2016. 04. 006
文献标志码:
A
摘要:
研究了以不同稀土离子改性的膨润土为催化剂,选择性催化联苯的硝化反应. 采用傅里叶红外吸收光谱和X射线衍射对稀土离子改性的膨润土进行表征. 硝化研究结果表明改性的膨润土对联苯的硝化在硝酸/二氯甲烷体系中的对位选择性高. 在该体系中,当硝酸与联苯的摩尔比为3∶1,适量硝酸铈改性的膨润土作为催化剂,15 ℃下反应10 h后,所得联苯的一硝化产物的最佳邻对比为0.71,硝化产率可达90.8%. 该催化剂经过简单处理,煅烧再生后可重复利用,其催化效果基本不变,该工艺环境亲和性好.
Abstract:
The selective nitration of biphenyl catalyzed by rare-earth ions modified bentionite was investigated. The rare-earth ions modified bentionite was characterized by Fourier transform infrared spectroscopy and X-ray diffraction. The results of nitration experiment show that the para selectivity of biphenyl nitration in nitric acid/dichloromethane system is good. The ratio of ortho-para of biphenyl mononitration product is 0.71 and the yield of nitration is up to 90.8% in nitric acid/ dichloromethane system catalyzed by appropriate dosage of cerium nitrate modified bentionite at the molar ratio of nitric acid to biphenyl of 3∶1, and 15 ℃ for 10 h. The catalysts can be reused by simple treatment and regeneration, with good effect and environmental friendliness. Keyw

参考文献/References:

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备注/Memo

备注/Memo:
更新日期/Last Update: 2016-07-29