Abstract: Method for converting brown coals, including leonardite, into humic fertilizers and fuel briquettes, comprising first grinding the raw material to less than 3 mm and subsequently treating it with water or water solutions, using liquid-phase mechanoactivation and/or mechanochemical activation, with a duty of water curve ranging from 0.9 to 2.5 and with reaction composition dispersion by chafing and dynamic shift by exposing the medium to a hydraulic impulse of sonic and infrasonic frequencies, by metered introduction of 10 to 40 MJ per cubic meter of mechanical energy, with automatic limitation of the energy in the sub-cavitation area for preventing the mechanochemical reactors from falling into cavitation modes; the method further comprises separation of converted suspension compositions into solid and liquid phases in the centrifugal force field, optionally acidizing the liquid phase with the withdrawal of humic acids from the liquid phase to the heavy phase and recycling of residual water.

Abstract: A method for comprehensively processing coal-type caustobiolites, predominantly brown coal and leonardite, into humic organic and organomineral fertilizers and intor preparations producing fuel briquettes, including carrying out main processes in a continuous flow; carrying out leaching processes based on aqueous solutions with hydromodules of close to 2, carrying out acidification processes with the formation of humic acid released from a liquid phase into a heavy phase of a coagulated pulp, carrying out mechanical phase separation processes in a centrifugal field, carrying out liquid-phase mechanoactivation and the dispersion of reaction compositions via grinding, using residual “water” in recycling, and including the production of water-soluble humic acids and fuel briquettes and allowing for the production of a wide range of products; preliminarily grinding raw materials to a 03 mm class, and cleaning and electrochemically softening water in preparing reaction aqueous solutions; using a liquid-phase raw m