INTENSIFYING THE PROCESS OF EXTRACTION OF HUMIC ACIDS FROM BROWN COAL BY USING THE HYDROCAVITATION ACTIVATION METHODOLOGY

Experimental studies in humic acid extraction processes in the processing of brown coal from the Oleksandriiа deposit (Ukraine) using the methodology of hydrodynamic cavitation activation have been carried out. The infrared spectrometry method to determine the peculiarities of the chemical structure of the initial and by-products was used. It was experimentally approved that hydrodynamic cavitation activation significantly intensifies the chemical-technological processes of humic acid extraction with no changes in the molecular structure of isolated humates. It is shown that the hydrodynamic cavitation processing of brown coal allows to separate the water-coal pulp into humic acids: the coal component for use as energy fuel and mineral components to be used in the production of construction materials.