Abstract
The purpose of this work is to study the phase transformations occurring in the charge mixture during the smelting of medium-carbon ferromanganese. The study of phase transformations occurring in the charge mixture was carried out on a device for synchronous thermal analysis Labsys Evolution TG-DTA/DSC from Setaram in dynamic mode in the tem perature range of 30-1500°С. Derivatograms were obtained for two variants of the charge mixture (Option I – manganese ore, lime, silicomanganese FeSiMn17; Option II – manganese ore, lime, converted silicomanganese) in an inert atmosphere of nitrogen. Calculation of kinet ic parameters – activation energy of endo-exothermic effects occurring at different tempera tures was made. The values of the apparent activation energy determined by the tangent of the slope angle are given.
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