The extraction of nickel (Ni) from sulfide resources commences with flotation to produce a concentrate which is then smelted nickel-enriched phase called matte, and further refined pure Ni products as well by-products, such cobalt (Co), copper (Cu) precious metals. However, the traditional smelting-matte refining process, whilst technologically robust, capital intensive suffers several environm...

The deep learning object detection model can well extract the coordinate information of separating point concentrate ore belt boundary line. However, with drawbacks acquired zonal image features, it is difficult to obtain perfect prediction grade and recovery rate. In this study, by adapting semantic segmentation technique DeepLab V3+, which effectively multi-dimensional features. mapping relat...

A set of studies on the comparative evaluation technological properties oxidized quartzites Starooskolsky ore district KMA was carried out. The relative pulverizability during first stage grinding to a fineness 50% minus 0.045 mm class non-oxidized ones current production established, which 1.06–1.08 d. units. assessment enrichability out according three schemes: flotation → magneto-...

In order to improve production control ability in the gold ore flotation process, output index this process was studied. Flotation is an effective recovery process. Gold concentrate grade and rate are key indicators of However, existing studies exploring impact parameter changes on indicators, insufficient, interaction between variables inadequately considered. Therefore, a multi-objective opti...

The current version of the Tax Code allows for misinterpretation interpretation term "primary processing mineral resources". In particular, tax authorities believe that primary raw materials includes magnetite concentrate, which in this case is subject to taxation. That is, a number mining and enterprises have faced problem double taxation, threatens significant financial losses. Accordingly, l...

J. Korol, Central Mining Institute, Department of Material Engineering, Poland D. Burchart-Korol, A. Smoliński, Central Mining Institute, Department of Energy Saving and Air Protection, Poland In this study composition of sinter mixtures used in Polish sinter plants were established. Seven sinter mixtures composition were examined, based on iron-bearing materials, admixtures and fuels.

l P ( p u d F m S P r B t e l ( b P W i p p a latelet-rich plasma (PRP) is an autologous concentraion of human platelets in a small volume of plasma. herefore, the term PRP is preferred to autologous latelet gel, plasma-rich growth factors (PRGFs), or a ere autologous platelet concentrate. Because it is a oncentration of platelets, it is also a concentration of he 7 fundamental protein growth f...