Chromite ore processing tailing, a solid waste generated during the of chromite ore, is difficult to recover due its ultra-fine size. The tailings from process contains valuable and iron-bearing minerals, loss which matter concern for ferrochrome industry worldwide. Tailings plant mainly dumped, causing space environmental concerns. Researchers worldwide have carried out rigorous study on recov...

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. ...

We investigated the potential of tailings generated from chrysotile asbestos fiber production as a source iron, nonferrous metals, and gold. proposed use granulometric separation systematically examined different enrichment processes, namely magnetic separation, gravity concentration, using Knelson concentrator, to extract valuable components. The characterization initial tailing samples reveal...

In the present work, cobalt-chromite-based pigment Co1-xNixCr2O4 chromate powder and nanoparticles with various transition metal concentrations (x = 0.2, 0.4, 0.6, 0.8) were manufactured by applying aqueous synthesis approaches sol–gel routes. XRD analysis of shows that all samples formulated method crystalline a spinel structure. Chromites show green color higher nickel concentration, while Co...

Trachybasalt scoria from a cinder cone near the Mexican volcanic front contain phenocrysts of olivine with chromite inclusions, apatite, augite and hornblende, with microphenocrysts of plagioclase. The water-saturated phase relations reproduce the phenocryst assemblage between 1040 C and 970 C with water contents of between 2 5 and 4 5%(50---150MPa).The absence of biotite phenocrysts in the sco...

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...

Introduction: Primitive achondrites (IAB irons/winonaites; acapulcoites/lodranites; and brachinites) have chondritic compositions, but nonchondritic textures (from metamorphic through partially melted) [1]. Because of this, they offer a unique insight into the first stages of the differentiation process on asteroids. Acapulcoites and lodranites have textural and mineralogical evidence that they...