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The objective of this work was to develop a biohydrometallurgical/UV radiation route to produce ferrous sulphate heptahydrate (melanterite) from the pyrite present in coal tailings. The experimental work was carried out with a pyrite concentrate obtained from gravimetric processing of coal tailing. At laboratory scale it was performed the oxidation of pyrite in an aqueous medium in packed bed leaching...
A small test facility for investigation of particle-wall impact, especially designed for use of pulverised fuel, will be presented. With this experimental setup, the coefficients of restitution and friction for impact of coal particles onto a steel wall and the erosion effects have been measured. Based on this experimental data, a numerical simulation of transport of pulverised fuel in a complex splitting...
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