首页> 外国专利> AN IMPROVED CATALYST COMPOSITE AND A PROCESS FOR THE LIQUID PHASE OXIDATION OF TOLUENE TO BE NZALDEHYDE

AN IMPROVED CATALYST COMPOSITE AND A PROCESS FOR THE LIQUID PHASE OXIDATION OF TOLUENE TO BE NZALDEHYDE

机译:改进的催化剂复合物及甲苯液相液相氧化制苯甲醛的方法

摘要

The present invention provides a liquid phase oxidation of toluene by using catalyst containing manganese (Manganese II acetate) in presence of Lewis acid (Stannous (II) chloride) and a bromide promoter (NaBr), at a temperature of 120°C and at a pressure of air in the range of 70 - 400 psig, in presence of carboxylic acid (acetic acid), as a solvent, to obtain high selectivity to benzaldehyde (76%). High activity was obtained with minimum byproducts such as benzoic acid, benzyl alcohol and benzyl acetate.
机译:本发明通过在路易斯酸(氯化亚锡(II))和溴化助催化剂(NaBr)的存在下,在120℃的温度下和在室温下在室温下使用含锰的催化剂(乙酸锰II)和溴化助催化剂(NaBr),提供甲苯的液相氧化。在作为溶剂的羧酸(乙酸)存在下,空气压力在70-400 psig的范围内,以获得对苯甲醛(76%)的高选择性。用最少的副产物(例如苯甲酸,苯甲醇和乙酸苄酯)获得了高活性。

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