Process to produce manganese pellets from non-calcinated manganese ore and agglomerate obtained by this process
AssigneeVale S.A.
InventorsWashington Luiz Mafra, João Batista Conti de Souza
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Abstract
It is described a manganese pellet production from non-calcinated manganese ore, comprising the following phases: (a) ore size preparation through ore classification by function of particle size, smaller or equal to 1 mm particles being maintained from the ore particle fraction process so as to have a smaller or equal to 1 mm size, as well as the comminution of these particles; (b) flux addition; (c) agglomerant addition; (d) pelletizing resulting in crude pellets; and (e) thermal processing through crude pellet drying, pre-heating and heating.
Claims19
PROCESS TO PRODUCE MANGANESE PELLETS FROM NON-CALCINATED MANGANESE ORE characterized by the fact that it comprises the following phases:
- (a) ore size preparation through ore classification by function of particle size, smaller or equal to 1 mm particles being maintained from the ore particle fraction process so as to have a smaller or equal to 1 mm size, as well as the comminution of these particles;
- (b) flux addition;
- (c) agglomerant addition;
- (d) pelletizing resulting in crude pellets;
- (e) thermal processing through drying, pre-heating and heating the crude pellets.
Dependencies are inferred from the claim text.