C - Chemistry – Metallurgy – 22 – B
Patent
C - Chemistry, Metallurgy
22
B
C22B 1/14 (2006.01) B07B 1/00 (2006.01) C22B 47/00 (2006.01)
Patent
CA 2732009
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.
La présente invention concerne une production de granulés de manganèse à partir d'un minerai de manganèse non calciné, comprenant les phases suivantes : (a) préparation de la dimension du minerai par classification du minerai en fonction de la taille des particules, les particules inférieures ou égales à 1 mm étant conservées à partir du traitement par fraction des particules de minerai de façon à obtenir une taille inférieure ou égale à 1 mm, ainsi que la comminution de ces particules; (b) addition d'un fondant; (c) addition d'un agglomérant; (d) granulation permettant d'obtenir des granulés bruts; et (e) traitement thermique par séchage, préchauffage et chauffage des granulés bruts.
Mafra Washington Luiz
Souza Joao Batista Conti de
Osler Hoskin & Harcourt Llp
Vale S.a.
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