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Browsing by Subject "copper concentrate"

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  • thumbnail.journal.alt
    Item type:Thesis, Access status: Restricted ,
    Redukcja ilości materii organicznej w koncentratach rud miedzi produkowanych przez ZWR Polkowice metodami chemicznymi - aspekt ekonomiczny i środowiskowy
    (Data obrony: 2014-12-19) Staszkiewicz, Jadwiga
    Wydział Geologii, Geofizyki i Ochrony Środowiska
    In the paper were presented results of extraction of copper concentrate using the organic solvents (acetone, dichloromethane: methanol (9:1), toluene), carried out in order to reduce the organic matter content in the concentrate produced in the Concentrator Plant, in Polkowice area. Adjustment of the organic carbon (TOC) amount in the concentrate can increase the efficiency of the flash furnace smelting technology and control over its energy balance. Based on the results of the bitumen extraction and geochemical parameters and indicators obtained from Rock-Eval pyrolysis analysis, it was found that the most effective solvent is a mixture of dichloromethane and methanol (9:1 v/v). Decrease of the TOC content in the sample with increasing extraction time is observed. Generally, bitumen yield is directly proportional to extraction time. The study shows that the selected organic solvents did not significantly reduce the organic matter content, therefore reducing the amount of TOC by the solvent extraction is inefficient method. The study can be a prelude to seek an effective solvent for extraction of organic matter present in the copper concentrates produced by KGHM PM SA.