甲苯氧化合成无氯苯甲醛工艺研究进展  

Research progress on the synthesis of chlorine-free benzaldehyde by toluene oxidation

作　　者：卫达[1] WEI Da(SINOPEC Yangzi Petrochemical Co.,Ltd.,Nanjing 210048,China)

机构地区：[1]中国石化扬子石油化工有限公司,江苏南京210048

出　　处：《能源化工》2020年第5期24-28,共5页Energy Chemical Industry

摘　　要：介绍了甲苯液相氧化和气相氧化2种无氯苯甲醛合成工艺。甲苯液相氧化工艺采用的传统钴锰溴催化剂仍然是未来的研究重点,新型催化剂存在氧化剂成本高、苯甲醛收率低等问题。甲苯气相氧化催化剂还未实现工业化应用,存在的问题主要是深度氧化反应严重和苯甲醛收率较低。通过调变催化剂氧化还原能力和表面酸强度,开发高性能甲苯气相氧化催化剂是未来的研究重点。Two synthesis processes of chlorine-free benzaldehyde,liquid phase oxidation and gas phase oxidation,are introduced.The traditional cobalt-manganese-bromine catalyst used in the liquid phase oxidation of toluene is still the focus of future research.The new catalysts have the problems of high cost of oxidant and low yield of benzaldehyde.Toluene gas phase oxidation catalysts have not been applied in industry,the main problems are serious deep oxidation reaction and low yield of benzaldehyde.Through adjusting the redox ability and surface acidity of catalyst,developing high performance toluene gas phase oxidation catalyst is the future research focus.

关 键 词：甲苯 无氯苯甲醛 气相氧化 液相氧化 

分 类 号：TQ244.1[化学工程—有机化工]