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47th Physicochemical Problems of Mineral Processing
Witaszyce, Poland, September 20-22, 2010

The 47th Physicochemical Problems of Mineral Processing conference was organized by the Mineral Processing Group of the Wroclaw University of Technology and other institutions. It took place in Witaszyce, a small town located between Wroclaw and Poznan, on September 20-22, 2010. The topics of the conference presentations included all aspects of mineral processing. The mostinteresting presentations dealt with sulfide mineral and sulfide ores and their processing.

The keynote lecture was delivered by Dr. A. Konieczny, the CEO of the Mineral Processing Plants of KGHM Polska Miedz S.A. He discussed The strategy of development of the company in 2010-2019. In his opinion the new vision of KGHM development is based on 5 pillars: 1. Effectiveness improvement, 2. Development of resources availability, 3. Diversification of income, 4. Regional cooperation and support, and 5. Development of skills and company organization. In the second part of his lecture he discussed the effect of technical, technological and management changes on the effectiveness of copper ore beneficiation at the Ore Enrichment Division of KGHM Polska Miedz S.A.

Dr. Chmielewski from the Hydrometallurgy Group of the Wroclaw University of Technology presented a lecture on Hydrometallurgy in KGHM -limitations, needs and perspective of application. He discussed the reasons of agrowing importance of hydrometallurgical technologies for copper ores andcopper concentrates processing. It was also argued that hydrometallurgical processing of copper ores represents an alternative for smelting in the case ofunfavorable mineral composition of the copper ores and due to present low prices of sulphuric acid. He showed that difficult-to-float ores provide copper concentrates of decreased copper and accompanying metals recovery as well as ofreduced quality. He described in details the benefits of atmospheric and pressure leaching of copper ores and concentrates in oxygenated sulphuric acid solutionsand in the presence of iron(III) ions.

Dr. Forsen, in the presentation prepared by M. Lundstram, J. Aromaa, and O. Forsen, showed their microscopic and XRD investigations on products formedduring leaching of chalcopyrite in copper(I) chloride solutions. Their studyshowed that the surface product layers were similar to those in theHydroCopper® process and that at pH =1 elemental sulfur was the prevailingspecies while at pH 2 to 3 the reaction product layer consisted mainly of FeOOH.The presentation was illustrated with high quality colorful photographs.

There were about 69 participants of the Physicochemical Problems of Mineral Processing conference from Poland and several from other countries.Selected works presented at the conference were peer-reviewed and published in the Physicochemical Problems of Mineral Processing journal (annual) which is available free of charge at www.minproc.pwr.wroc.pl/journal.

Jan Drzymala (editor of the Problems of Mineral Processing journal and participant of the conference)




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