Аннотация:Sulfur exist mainly in the form of organic compounds was found in the investigated lean and brown coals. Experimental study of sulfur elimina- tion using a mass spectrometer QMC 230 and infrared absorption analyzer at the metallization of the iron-ore concentrates with coal shows that this process is difficult because of adsorption of sulfur-containing gases and reaction with reduced iron and S (gas) with FeS formation. The FeS does not reduces with carbon and hydrogen. It was cofirmed that significant removal of sulfur is observed only when calcium oxide filling was used. The reaction is CaO + H2S = H2O + CaS.
