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Microestruturas de pelotas feitas com mistura de redutor e finos de minério

New processes utilised for the production of ferro primario has been receiving special attention over the last 10 years. This is due to the necessity to use high grade concentrates which can not be utilised straightforward by the steel mills and do not cause the environmetal problems produced by traditional process. The Process of Direct Reduction from Green Pellets (RDPC) reported in other works is one of those processes in which the problens associated to coking, sinterization and pelletization do not happen. Besides, this new process has other advantages such as the possibility to use the flotation concentrates without the necessity to grind it to the same level as it occurs with the conventional pelletization. This work aims to show some characteristics of the microstructures of pellets made out from the of mixture reducing agent and iron ore fines when they are heated under various conditions of time and temperature.

Pellets; reduction; microstructure


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