OXIDATION OF BROWN COAL BY POTASSIUM PERMANGANATE IN ALKALINE MEDIUM
Brown coal oxidation by potassium permanganate was conducted in alkaline medium at different temperatures in the temperature range of 30<sup>0</sup>C to 70<sup>0</sup>C. After separating the sum of acid solution, residual coal was investigated. It is shown that residual carbon as compared with the initial one has better absorption properties. The adsorption ability of iodine increases by an average of 2.1 times. Sorption of copper cations increases by an average of 2.18 time. The total porosity is increased 2, 11 times.