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Evaluation of organic carbon separation from copper ore by pre-flotation

Konieczny A., Pawlos W., Krzeminska M., Kaleta R., Kurzydlo P.

Physicochemical Problems of Mineral Processing

2013

Vol. 49, iss. 1

189--201

This paper describes possibilities of organic carbon matter separation during a pre-flotation stage in KGHM Polska Miedz, Division of Concentrators. The paper contains a survey of organic carbon removal technologies in worldwide plants as well as KGHM achievements in this field. Laboratory flota-tion testing results have also been described. Next, an industrial scale trial at Polkowice Concentrator has been conducted to confirm the previous laboratory results. The results have been discussed. They indicate a positive role of the pre-flotation stage on organic carbon removal using only frother as the flotation reagent.

Dependence of mine revenue on the grade of copper concentrate

Malewski J., Krzeminska M.

Physicochemical Problems of Mineral Processing

2012

Vol. 48, iss. 2

545-554

The paper presents a method of calculating the Net Smelter Return or Revenue (NSR) formula for copper ore mines based on heuristic models of functional relationships between concentration of metals in ore and copper concentrates, the operational efficiency, and the metal prices in the global markets. A method has been proposed to identify these relationships as well as a way of estimating their parameters. The NSR optimization calculations have been performed for the data coming from the mining and smelting practise of KGHM Polska Miedź S.A., which demonstrate its practical usefulness in assessing the efficiency of production based on the current quality of ore, the efficiency of its beneficiation, and the market prices of metals.