A model for the quantitative estimation of mineral liberation by grinding

摘要: Abstract An exact expression is derived for the fraction of particles mesh size D that contain less than a prescribed any particular mineral. The obtained entirely in terms distributions linear intercept lengths minerals ore. These can be by line traverses across section No other statistical information regarding mineral grain sizes required. theory completely free empirical constants or parameters and no assumptions are made shape grains ore particles. predicts fractional liberation at given by: L(D)=1− 1 μ ∫ 0 u {1−N( l )} {2−F(l)}dl where F(l) distribution mean length N(l/D) function Du largest particle D. was confirmed experimentally pyrite from Witwatersrand quartzite.