SYNTHESIS OF SYNTHETIC PETROLEUM ACIDS BY LIQUID-PHASE CATALYTIC OXIDATION OF TRANSFORMER OIL DISTILLATE

Abstract

The presented article is devoted to the liquid-phase oxidation of naphthene-paraffin hydrocarbons isolated from a mixture of Azerbaijani oils of oil distillate T-1500 with atmospheric oxygen in the presence of Mn- and Cr-salts of natural petroleum acids. In the oxidation process, individual salts of Cr-, Co-, Mn- taken in different concentrations and their mixtures in different ratios were used as catalysts. It has been established that during the aerobic oxidation of naphthene-paraffin hydrocarbons isolated from a mixture of Azerbaijani oils of oil distillate T-1500, in the presence of these catalysts, a mixture of synthetic- and oxysynthetic acids is obtained with a high yield. It has been proven that when taking individual catalysts, the best results are obtained in the presence of Mn salts of natural petroleum acids (Mn PNA), where, with the amount of catalyst taken 0.3 wt. % on raw materials with a reaction time of 5 hours, the yield of a mixture of acids is 40.8%, after 8 hours the yield is 43.6%, after 12 hours 47.7%.