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Advisor(s)
Abstract(s)
Any realistic description of ore processing dealing with a particulate system requires an adequate characterization of it properties, mainly particle size and grade,because these are the most important variables that influence the performance of a mineral processing separation, such as froth flotation. Experience has shown that an appropriate model for liberation of solid phases must always integrate all available mineralogical data by comminution. The present work aims too describe a case study for calibration of a liberation model with data obtained from semi-quantitative mineralogical analysis (ore microscopy). For the specific case of random comminution, a limit probability argument is used to justify the introduction of Euler's Beta Law as well-suited tool for describing the liberantion state of a comminuted ore, because it is able to predict the grade distribution of a given iso-size fraction of such particulate system.
Description
Keywords
Flotation process Liberation Mineral processing Modelling Phenomenological models
Citation
Barros, Elisa; Leite, Mário; Cavalheiro, Abílio (2000). The use of ore microscopydata for flotation process control by means of a liberation model: a case study. CIM Bulletin. 93:1039, p. 55-59
Publisher
Canadian Institute of Mining