Statistical Analysis of Metal Particles Forming during Reduction of Oxides with Low Iron Content

Abstract

Metallurgical Industry slowly moves towards wider utilization of complex ore minerals. Reduction behavior of complex crystalline structures can hardly be interpreted applying kinetic modeling adopted for pure oxides. The quantitative mathematical analysis of the metal particles forming during solid state reduction of a complex mineral has been suggested. The analysis with 95% reliability showed that during solid phase reduction of dunite at 1300 °C for 60 min about 360 particles with an average size about 0.62 mm formed from the total area S = 20880 mm. Such an approach could be useful for development of sophisticated kinetic models applied for reduction of a low-grade complex ore.

Influence of Temperature and Holding Time on Number and Size of Metal Particles during Solid-Phase Reduction of Iron by Carbon

“…Using previously developed technique [17][18][19][20], a series of experiments on solid-phase metal reduction was conducted in dunite under various temperatures and holding times (Table 1). A total number of 1439 fields of view were examined and 542483 iron particles were detected.…”