文章摘要
钯催化剂在邻氯硝基苯加氢反应中的研究进展
Recent Advances in Hydrogenation of o-Chloronitrobenzene on Palladium Catalysts
投稿时间:2016-06-07  
DOI:
中文关键词: 催化化学  钯基催化剂  加氢  邻氯硝基苯  脱氯  邻氯苯胺
英文关键词: catalytic chemistry  palladium-based catalysts  hydrogenation  o-chloronitrobenzene  dechlorination  o-chloroaniline
基金项目:国家自然基金面上项目(51374117)、国家重点研发计划项目 (2016YFB0101309)和昆明市科技创新项目(2015-1-G-01001)。
作者单位E-mail
赵娇 昆明贵金属研究所 稀贵金属综合利用新技术国家重点实验室昆明 650106  
赵云昆 昆明贵研催化剂有限责任公司 贵金属催化技术与应用国家地方联合工程实验室昆明 650106  
刘锋 昆明贵研催化剂有限责任公司 贵金属催化技术与应用国家地方联合工程实验室昆明 650106  
胡晋铨 昆明贵研催化剂有限责任公司 贵金属催化技术与应用国家地方联合工程实验室昆明 650106  
刘强 昆明贵金属研究所 稀贵金属综合利用新技术国家重点实验室昆明 650106  
栗云彦 昆明贵研催化剂有限责任公司 贵金属催化技术与应用国家地方联合工程实验室昆明 650106 yunyan.li@spmcatalyst.com 
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中文摘要:
      在邻氯硝基苯加氢制备邻氯苯胺的反应中,钯催化剂的催化活性高,但因易脱氯生成副产物苯胺,限制了钯催化剂在该工艺中的应用。综述了4类钯基催化剂在抑制脱氯副反应、提高选择性和转化率的研究进展。单钯催化剂的性能受纳米钯尺寸、载体性能和反应条件的影响较大;双、多金属钯基催化剂通过金属助剂的协同和增强效应提高了选择性;有机络合物钯基催化剂和非晶态钯基催化剂具有特别的潜能,但相关研究尚处在起步阶段。基于分析,展望了钯催化剂的研究方向。
英文摘要:
      Palladium catalysts have high catalytic activity in the synthesis of o-chloroaniline from o-chloro- nitrobenzene. However, their application in the synthetic process is largely compromised by a by-product, aniline, formed during the hydrogenation of o-chloronitrobenzene on palladium. The progress recently made in the inhibition of dechlorination reaction, the improvement of selectivity and the conversion rate was reviewed in the present paper. The performance of mono-palladium catalyst is influenced by the size of palladium, carrier profile and reaction conditions. Double, polymetallic palladium-based catalysts improve the selectivity through the synergistic and enhancing effects of metal promoters. Organic palladium complexes and amorphous palladium-based catalysts have potential for catalyzing hydrogenation of o-chloronitrobenzene, but are still in the initial stage of development. Based on the analysis, the research direction of the palladium catalysts was prospected.
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