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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
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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
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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.
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