Abstract
A mathematical model has been developed to simulate the size reduction/liberation behavior of complex ores for the cases of batch and open-circuit continuous grinding. As compared with other models of this type reported in the literature, this one is absolutely free from restrictions on the number of mineral components and composite particle classes which can be represented. A modified Levenberg—Marquardt algorithm and a finite difference Jacobian are used in conjunction with the model equations to estimate all kinetic parameters. The estimation scheme is validated for a binary ore with five composite particle classes, while the model is used to simulate the liberation behavior of a ternary ore with five composite particle classes for each composite type.
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