对二甲苯氧化非溴催化体系研究新进展  

Progress on Research of Bromine-Free Catalysts Used in Oxidation of p-Xylene

作　　者：姜瑞霞[1] 畅延青[1] 唐泓[1] 邢素英 谢在库[1] 

机构地区：[1]中国石油化工股份有限公司上海石油化工研究院,上海201208 [2]沧州化学工业股份有限公司,河北沧州061000

出　　处：《石油化工》2007年第1期100-104,共5页Petrochemical Technology

摘　　要：综述了用于对二甲苯氧化的不同非溴催化体系的研究进展情况,详细介绍了不同非溴催化剂的制备和催化性能。溴蒽类催化剂的活性较低,相应的研究也较少。非溴催化体系的研究主要集中于氮氧自由基催化剂。氮氧自由基催化剂是非常有效的对二甲苯氧化催化剂,活性高、环境友好,具有很大的工业化潜力。氮氧自由基催化剂与反应产物可通过结晶和萃取技术进行分离。Various bromine-free catalysts used in oxidation of p-xylene to p-phthalic acid are summarized. The preparation and catalytic properties of different bromine-free catalysts were discussed. The catalytic activity of brominated anthracene catalysts was relatively low and was seldom reported. Studies of bromine-free catalyst now focus on N-oxyl radical catalysts, which are very effective for oxidation of p-xylene and environment-friendly. The N-oxyl radical oxidation catalyst and relevant oxidation product p-phthalic acid can be separated by crystallization and extraction. Novel N-oxyl radical catalysts with even higher activity are expected to be developed because of their decomposition during oxidation.

关 键 词：对二甲苯 氧化 对苯二甲酸 非溴催化体系 氮氧自由基催化剂 

分 类 号：TQ032.4[化学工程]