Evolution Of The Near-uv Emissionspectrum Associated With The Reductionrnprocess In Microwave Iron Making

摘要

The structure of the emission spectrum in the near- UV range (240 nm - 310 nm) changes drastically from the continuous spectrum to a discrete line spectrum with increasing sample temperature during the carbothermic reduction of magnetite in a 2.45 GHz microwave multi-mode furnace. The continuous spectrum can be assigned as a cathodoluminescence of magnetite. The dynamic evolution of the spectrum from continuous to discrete represents the progress of the reduction from magnetite to iron.