Due to its numerous and major industrial uses, graphite is one of the significant carbon allotropes. Refractories batteries are only a couple many uses for graphite. A growing market wants high-purity with big flakes. Since there fewer naturally occurring high-grade ores, low-grade ores must be processed increase their value meet rising demand, which predicted by >700% 2025 due adoption elec...

Purpose. Highlight the main results of experiments performed on destruction martite ores by method borehole hydraulic their layering. Since, as a result analysis literary sources, it was established that some deposits Kryvyi Rihiron ore basin are suitable for hydro monitor excavation.Consideration introducing technologies hydromechanization mining operations in conditions is topical issue. The ...

The recovery of uranium and other valuable metals from Polish Peribaltic sandstones were examined. The solid-liquid extraction is the first stage of the technology of uranium production and it is crucial for the next stages of processing. In the laboratory experiments uranium was leached with efficiencies 71-100 % by acidic lixiviants. Satisfactory results were obtained for the alkaline leachin...

The mechanical size reduction of solids is an energy intensive and highly inefficient process. Therefore, there is great incentive to improve the efficiency of size reduction and mineral separation processes. Over several decades, this has promoted significant amounts of research,unfortunately, this has only led to small, incremental improvements in efficiency. One area which has shown signific...

ITIHEORETICAL considerations and experimental findings point out that reduction of iron oxides and I ores by carbon proceed via the gas' phase, whenever the latter is present. The overall reaction is a coupling of the following two component reactions, viz., Gasification of carbon C(S) CO2 (g) = 2C0 (g) and Reduction of iron oxide mFe.0y(S) -fCO (g) = nFezOw [S) CO2 (g) ' Recent kinetic studies...