Thermodynamic Modelling of Obtaining Ferronickel from Kazakhstan Oxidized Nickel Ores

Abstract

The paper deals with thermodynamic investigations of the nickel ore-carbon system aimed at obtaining ferronickel from Kazakhstan oxide ores, in particular, from Bugetkol deposit ores. Theoretical investigations of the system using the thermodynamic modelling method were carried out within a temperature range of 1000–1700 K and pressure P = 0.1 MPa. For quantitative thermodynamic modelling of extraction processes of metals, in particular, iron, nickel and cobalt, the «Astra-4» software complex was used based on the principle of maximum entropy. Investigations predict the transition degree of Ni to Nik and Co to Cok reaching 100 % within a temperature range of 1000–1300 K.