TEST OF BARBERY LIBERATION CORRECTION PROCEDURE

In his book Mineral liberation G. Barbery outlined a procedure for the reconstruction of original liberation distributions on the basis of a real or linear information through the use of integral geometry. Altho ugh other correction procedures had previously been proposed, Barbery' s embodied a unique approach to the problem and made few assumptions w ith regard to particle shape and ore texture. An overview of the proce dure is given and its robustness is tested by applying it to the corre ction of areal liberation data that were generated by the simulated se ctioning of spheres that exhibit simple locking (i.e. locking with jus t one interface between the phases). The results indicate that it has problems with narrow composition ranges and irregular liberation distr ibutions. With more 'realistic' distributions the correction procedure provides results that approach the true data closely, although in som e of the cases considered the uncorrected data were also close to the true.