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156  Articles
1 of 17 pages  |  10  records  |  more records»
This article reviewed the hematite a-Fe2O3, which focuses on its material properties, nanostructures, synthesis techniques, and its numerous applications. Researchers prepared the hematite nanostructure using the synthesis methods, such as hydrothermal, a... see more

Hematite quartzites are a product of weathering of magnetite quartzites, which make up the ferruginous horizons of deposits of the Precambrian banded-iron formation. They occur all over the planet. The largest deposits are found in the iron-producing area... see more

  The adsorption geometries of unsubstituted vanadyl porphyrin on a hematite cluster were studied by means of MINDO/SR method. A survey of diatomic pararneters for MINDO was carried out in order to reproduce the experimental values of bond length... see more

There are three main types of industrial iron ores in Kryvyi Rih basin: rich ore that are directly used in metallurgy, magnetite ore and oxidized ferruginous quartzites that need enrichment. Deposits of rich ore are depleted. Nowadays, ferruginous quartzi... see more

Kinetics of hematite to magnetite reduction by starch at relatively low temperatures (300–600 °?) during the time interval of 5–30 min has been investigated using the method of thermomagnetic analysis. The transformation process was accompanied by permane... see more

The deposits of high-grade ores of the Kryvyi Rih basin are developed by seven mines and two open pits. Insufficient quality of extracted ore mass requires its beneficiation at the crushing and screening plants operating at each mine. Utilizing three-stag... see more

Los óxidos de hierro son prácticamente omnipresentes al analizar contextos, no solo referentes al arte rupestre, sino también en relación con toda una serie de actividades que podríamos considerar cotidianas en ambientes prehistóricos. Sin embargo, su est... see more

Separation of ultrafine hematite from quartz and kaolinite gangue minerals using selective flocculation technique is markedly affected by the state of inter mineral interaction which is governed by type and content of polyvalent metal ions. Because of the... see more

The effects of various entities like slip and squeeze velocities, inlet-outlet film ratio, and the material parameter have been fairly explored in a hematite suspension based absorbent (porous) pad inclined slider. Mathematical expressions for pressure, l... see more

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