考察了正丁烷在压力下和溶剂中液相空气氧化时各种操作因素对反应过程和产物分布的影响.采用化学和色谱联合分析法较全面地分析了液体产物和尾气的组成.在最适宜的操作条件下,由每100克转化丁烷可以得到乙酸111克,正丁烷的转化率达79%.主要的氧化中间产物除乙酸乙酯和甲乙酮外,尚有乙酸甲酯,后者较前二者为稳定.使用乙酸做溶剂,不仅使正丁烷能够在高于其临界温度下进行液相氧化,并且还使反应诱导期缩短和反应选择性改善. The effects of various operating factors on the reaction process and product distribution were investigated when n-butane was oxidized under liquid phase pressure in the presence of a solvent and in liquid phase. The composition of liquid products and tail gas were analyzed comprehensively by chemical and chromatographic methods. Under suitable operating conditions, 111 g of acetic acid per 100 g of converted butane was obtained with a conversion of n-butane of 79% The major oxidized intermediates were methyl acetate, in addition to ethyl acetate and methyl ethyl ketone, Acetic acid was used as a solvent not only to make n-butane liquid-phase oxidation above its critical temperature, but also to shorten the induction period and improve the reaction selectivity.