Chromite is a mineral with low solubility and is thus resistant to dissolution. The exception is when manganese oxides are available, since they are the only known naturally occurring oxidants for chromite. In the presence of Mn(IV) oxides, Cr(III) will oxidise to Cr(VI), which is more soluble than Cr(III), and thus easier to be removed. Here we report of chromite phenocrysts that are replaced ...

In this review article various applications and preparation methods of copper chromite catalysts have been discussed. While discussing it is concluded that copper chromite is a versatile catalyst which not only catalyses numerous processes of commercial importance and national program related to defence and space research but also finds applications in the most concerned problem worldwide i.e. ...

Ferrochrome is the major chromium source for stainless steel production, and submerged-arc furnaces (SAF) are most commonly utilised to smelt chromite ores into ferrochrome by using suitable carbonaceous reductants such as coke. Because of the complexity of feed structure and electrical-thermal-chemical interactions, there exist large gradients and wide distributions of temperature, mineralogy ...

The Bou Azzer district in the central Anti-Atlas of Morocco is world’s unique mining where Co exploited from serpentinite-hosted hydrothermal Co-Ni-Fe arsenide ores. This paper provides first-ever mineralogical and geochemical characterization a suite Fe-rich orebodies found during recent Ait Ahmane area, district. These are lens-like massive disseminated ores fully hosted serpentinites (hereaf...

Fractal geometry has developed rapidly, and is widely used in various disciplines. However, only a few fractal dimension methods techniques have been applied to the processing of gravity data, especially detection geological edges interfaces. In this paper, definition, properties characteristics dimensions are improve edge anomalies, theoretical model established. At same time, new method surfa...

In this study, the relationships between liberation degree and kinetic breakage parameters of a chromite ore obtained from Burdur (Türkiye) were examined under laboratory conditions. Firstly, degrees for particles determined by particle counting method in metal microscope 4 different size groups. Secondly, parameter which was dry ground with ball mill using standard test methods. Additionally, ...

Several chromite deposits located in the in the South and Southeast Arms of Sulawesi, Indonesia, have been investigated by electron microprobe. According to the variation of the Cr# = Cr/(Cr + Fe3+), the chromite composition varies from Cr-rich to Al-rich. Small platinum-group minerals (PGM), 1–10 μm in size, occur in the chromitites. The most abundant PGM is laurite, which has been found inclu...

Iron chrome oxide (FeCr 2O4), is a commercially viable and major ingredient of stainless steel. The Odisha state in India possesses 98% the pre-Cambrian India’s Chromite ore deposits Sukinda valley, Jajpur District. To meet present escalating demand for chromium steel industries, it urged to extract more satiate domestic needs. depletion deposits, rise demand, fewer mines, less conversion from ...