Abstract
Conditions for the solid-phase mechanochemical activation of coals, which make it possible to substantially increase the yield of water-soluble humic preparations enriched in humic acids and mineral elements, are given in this work. It was found that the humic preparations isolated from mechanically activated coals are characterized by an increase in the antioxidant activity and a change in the cationic and anionic composition. The concentration of acidic ionogenic groups in humic acids increased.
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Original Russian Text © A.V. Savel’eva, E.V. Mal’tseva, N.V. Yudina, 2017, published in Khimiya Tverdogo Topliva, 2017, No. 1, pp. 56–61.
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Savel’eva, A.V., Mal’tseva, E.V. & Yudina, N.V. Composition of the water-soluble humic preparations of mechanically activated brown coals. Solid Fuel Chem. 51, 51–56 (2017). https://doi.org/10.3103/S0361521917010098
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DOI: https://doi.org/10.3103/S0361521917010098