The varied particle size distribution of uranium ore for heap leaching, with its particle sizes ranging from 0 to 9 mm, is taken from a uranium mine in South China. Five uranium ore samples with the fractal dimensions (D) of particle size distribution of 1.6, 1.8, 2.0, 2.2 and 2.4, respectively, are further prepared by mixing different weights of the uranium ores for the size fractions of + 8/- 9, + 7/- 8, + 6/- 7, + 5/- 6, + 4/- 5, + 3/- 4, + 2/- 3, + 1/- 2, + 0.5/- 1 and - 0.5 mm, respectively. The five samples are leached in columns to inves...
