The Urals is one of the reference mobile belts mafic type characterized by a wide development ophiolites which are associated with numerous deposits chromites significant industrial importance. In this regard, estimation age rocks ophiolite association will be useful for analyzing regularities formation chromite deposits. This work presented results dating chromite-bearing Kluchevskoy mafic–ult...

This paper describes an innovative process for the production of ferrochromium alloy via segregation reduction of chromite at 1300 ◦C in the presence of calcium chloride. Both charcoal and petroleum coke were used as the reductant. Individual polycrystalline ferrochrome carbide particles were produced, with their particle size and shape resembling that of the starting carbon particles. Interact...

Mining and ore processing activities are associated with changes in the surrounding environment and may pose a risk to human health, if adequate safety measures are not taken. The uranium ore generally varies worldwide between 0.03 – 3% U3O8, except for a few deposits where higher levels of uranium is reported. More than 95% of the ore is converted into waste material called “tailings”. Around ...

In the present investigation, the oxidizing roasting process of chromite with sodium carbonate to prepare potassium dichromate crystals was studied in the microwave field with air, by heating the chromite and sodium carbonate. The chromite and sodium carbonate heated separately at 1000 ◦C in the microwave oven (frequency: 2.45 GHz; power 1.5 kW) in order to study the microwave absorption proper...

Abstract As a result of the analysis data available and collected in recent years, contrast to well-established ideas about polygenic poly-stage nature mineralization, it is indicated that gold mineralization Central Kyzyl Kum formed as formation single ore-magmatic system, which develops same type regardless composition age host rocks; during deposits, most important thing presence process pro...