KINETICS OF THERMAL DECOMPOSITION OF DASHKASAN COBALT ORE
Kinetics of thermal decomposition of Dashkasan cobalt mineral in the temperature range of 973-1123 К was studied. Activation energy was determined. According to the value of activation energy (236,5 kJ/тої) it revealed that the decisive stage of ore processing is the decomposition of ore depending on temperature. Note that the enrichment of ore was performed due to the use of pyrometallurgy method by melting of ore at 1673 K. When melting ore, 5% of carbon was added into furnace burden to form a reductive medium. The resultant alloy contains 15-20% of cobalt. Rate constants of thermal decomposition of cobalt ore at different temperatures were calculated. Kinetic parametrs of the decomposition processing of cobaltine were calculated using generalized topokinetic Kolmoqorov-Erofeev equation. Unlike well-known works the study was performed with natural mineral of cobaltine.