The effect of additions of isopropyl alcohol and ethyl acetate on the oxidation of the 35?62�C fraction of direct distillation gasoline

Abstract

1. It has been shown that ethyl acetate and isopropyl alcohol are oxidized much more slowly than the 35–62°C direct distillation gasoline fraction. 2. The rate of oxidation of ethyl acetate and isopropyl alcohol is considerably increased when they are oxidized together with the main gasoline fraction. Increase in the oxidation temperature by 10–20°C permits of the same rate for the process as that obtained with the pure gasoline. 3. Isopropyl alcohol is oxidized with the formation of acetone as an intermediate product, while the latter in its turn is rather easily oxidized into formic and acetic acids. 4. Ethyl acetate is selectively oxidized into acetic acid. 5. Addition of ethyl acetate and isopropyl alcohol to the gasoline undergoing oxidation leads to some reduction in the rate of the process, which is easily compensated by a small temperature rise. The yield of acids based on the oxidized raw material is then considerably increased, so that such an addition may be regarded as technically acceptable.