Investigation of Magnetite Oxidation Kinetics at the Particle Scale

• Published in: Metallurgical and materials transactions. B, Process metallurgy and materials processing science Vol. 50; no. 1; pp. 150 - 161
• Main Authors: Sandeep Kumar, T. K., Viswanathan, N. N., Ahmed, H., Dahlin, A., Andersson, C., Bjorkman, B.
• Format: Journal Article
• Language: English
• Published: New York Springer US 15.02.2019; Springer Nature B.V
• Subjects: Avrami Mechanism; Characterization and Evaluation of Materials; Chemistry and Materials Science; HEAT TRANSFER; MAGNETITE; Magnetite particle oxidation; MATERIALS SCIENCE; Metallic Materials; MICROSTRUCTURE; Nanotechnology; Organic chemistry; OXIDATION; Oxidation Kinetics; OXYGEN; Oxygen content; PARTICLE SIZE; PELLETS; Process Metallurgy; Processmetallurgi; REACTION KINETICS; Shrinking Core Mechanism; SINTERING; Structural Materials; Superposition (mathematics); Surfaces and Interfaces; Thin Films; Magnetite Pellets; Pellet Scale; Oxidation Behavior; Isothermal Oxidation; Avrami Kinetic Model (AKM)

The induration of magnetite pellets is a complex physico-chemical process that involves oxidation, sintering, and heat transfer. The thermal- and gas-composition profile that is experienced by the pellet in an induration reactor could result in the formation of a homogenous or heterogeneous pellet s...