Resumo

ROUX, W.P  e  NAUDE, N. Positron emission particle tracking inside a laboratory batch jig. J. S. Afr. Inst. Min. Metall. [online]. 2014, vol.114, n.7, pp.525-528. ISSN 2411-9717.

Owing to decreasing high-grade ore reserves, there is a need for better understanding of the jigging process to improve the recovery efficiency of finer, lower grade material. The use of positron emission particle tracking (PEPT) was examined as a technique to study the motion of iron ore particles inside a laboratory batch jig. PEPT is a non-invasive method that can provide three-dimensional kinetic data on a particle in laboratory-scale processing units and has been successfully used to study mills, hydrocy-clones, and flotation. Experiments were conducted to determine whether PEPT would be a viable technique to study iron ore jigging and what valuable information could be obtained. The results indicated that detailed information on the stratification rate of a particle could be obtained, with adequate resolution to track the particle's movement through an individual jig pulse.

Palavras-chave : positron emission particle tracking.

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