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- Title
ON THE PROCESSING OF FINE MINERAL PARTICLES: A REVIEW.
- Authors
Anastasakis, G.
- Abstract
The exploitation of ores with even lower grade has considerably reduced the liberation size of many mineral commodities, and increased the need both for fine grinding and for efficient separation techniques of fines. Conventional methods have limited success or fail to process fines, especially at industrial level, because of the peculiar properties of fine particles (physical, chemical) and of the concomitant problems. As a result, values of many commodities are lost to the tailings, e.g. phosphate, copper, tungsten, tin, sulfide minerals, iron, etc. Also considering the growing demand for mineral products, it is expected that the problem of fine and ultrafine particles separation should be even more intensive. The current paper deals with the innovation in equipment and processes developed to meet the problem of fine particles separation. Extended reference is made on the devices related to physical methods (gravity, magnetic, electrostatic), and the most common physicochemical methods, which are mainly based on the improvement or modification of known ones. Finally, separation results of fine magnesite particles from fine quartz particles, by applying magnetic coating and hydrophobic agglomeration methods, hold promise for the efficient treatment of fine and ultra-fine particles.
- Publication
Journal of Ore Dressing, 2014, Vol 16, Issue 32, p1
- ISSN
1302-6798
- Publication type
Academic Journal