The effect of primary copper slag cooling rate on the copper valorization in the flotation process
Keywords:slag, copper, slow cooling, nonstationary cooling
AbstractTechnological procedure of slow cooling slag from primary copper production is applied in the purpose of copper recovery in the level of 98.5% to blister. This technological procedure is divided into two phases, first slow cooling of slag on the air for 24 hours, and then accelerated cooling with water for 48 hours. Within the research following methods were used: calculation of nonstationary slag cooling, verification of the calculation using computer simulation of slag cooling in the software package COMSOL Multiphysics and experimental verification of simulation results. After testing of the experimentally gained samples of slowly cooled slag it was found that this technological procedure gives the best results in promoting growth or coagulation of dispersed particles of copper sulfide and copper in the slag, thereby increasing the utilization of the flotation process with a decrease of copper losses through very fine particles.
A. K. Biswas, W. G. Davenport, Extractive metallurgy of copper, Pergamon Press, New York, 2003
G. McKerrow, A. Pelletier, J. Newman, Process for controlled slow cooling of non-ferrous smelting slags, 1977, United States Patent 4 046 323
Heikki Jalkanen, Jouni Vehvilainen, Jaakko Poijarvi, Scandinavian Journal of Metallurgy, 32 (2003), 65-70
X. Wang, D. Geysen, S.V. Padilla T., N. D’Hoker, S. Huang, P.T. Jones, T. Van Gerven, B. Blanpain, Fayalite Based Slags: Metal Recovery and Utilization, 2ndInternational slag valorization symposium, Leuven, Belgija, 18-20 april, 2011
H. Kotzé and P.C. Pistorius, The Journal of The Southern African Institute of Mining and Metallurgy, Vol. 110 (2010) 57
A. B. NEWMAN, Heating and cooling rectangular and cylindrical solids, industrial and engineering chemistry, vol. 28, No. 5
Holman J.P. Heat Transfer. McGraw Hill Book Co, SI Metric Edition, 1989. pp. 331-345
Klinzing W.P., Rozzi J.C. and Mudawar, I., J. Heat Treat.,vol. 9, 1992. pp. 91-103
Mudawar I. and Valentine W.S., J. Heat Treat, Vol. 7, 1989.pp. 107-121
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