Composite Sorbents Based on Lignite Semicoke and Manganese Oxides

The creation of mixed sorbents with the benefits of both sorptional purification by activated carbon and oxidative purification by oxide catalysts is of great interest today. A possible catalyst is manganese dioxide applied to the surface of activated coal at the activation stage. The activation of lignite by potassium permanganate gives rise to composite sorbents, which combine a base of porous activated coal with applied surface particles of manganese oxides, an oxidation catalyst. The manganese oxides (general formula MnO x ) are uniformly distributed over the surface of the laminar sorbents in the form of ultradisperse particles (