Research and Obtaining Compounds of Carbonic Acids From Resins of Uzgen Coals

Abstract

In the article, sodium acetate was studied and obtained from carboxylic acids from coal tar of brown coal by the method of neutralization and drying and crystallization were made. Investigated and obtained ethyl acetate from carboxylic acids from the resin of Uzgen brown coal, by the esterification method and by the low-temperature distillation method. Excess carboxylic acids and azeotropic substances were checked, repeated purification was done, and pure ethyl acetate was obtained at a temperature of 77–78 °C.