Using ilmenite as a raw material, iron was converted into Fe₃O₄ magnetic fluid, which further was combined with titanium filtrate by a solvothermal method. Finally Fe₃O₄/TiO₂ nanocomposites with the uniform size of 100-200 nm were prepared. This approach uses rich, inexpensive ilmenite as a titanium and iron source, which effectively reduces the production cost. The crystal structure, chemical ...

Significant fractionation of dust/gas from the original interstellar doud during the formation of the solar system is a distinct posfilbility. Identification of such an effect would provide important clues to nebular processes. Fractionation of volatiles is not constrained by CI abundances and only for the most abundant ones by photospheric observations. The solar Xe elemental abundance is dete...

Ilmenite-type crystals find a variety of technological applications due to their intriguing physical properties. We present the results lattice dynamics studies honeycomb antiferromagnetic ilmenite CoTiO3 single crystal by complementary polarized infrared, Raman, and dielectric spectroscopic techniques that are supplemented DFT calculations. The symmetries frequencies all predicted infrared- Ra...

Abstract Background Ilmenite and rutile are naturally occurring titanium-bearing heavy minerals. Sri Lanka consists of ilmenite in placer deposits mainly along the northeast coast. The commercial value is higher than ilmenite. Therefore, current study focuses to upgrade Lankan ores using commercially available activated carbon as a reducing agent. fraction was initially separated from raw beach...

The formation of NOx from fuel-bound nitrogen is important for the design chemical-looping combustion (CLC) power plants. This work studied to what extent NO and NH3 reacts with perovskite-like oxygen carrier ilmenite under conditions relevant CLC. Based on mass balance calculations, N2 was major outlet N-species in all experiments. More measured at lower temperatures a higher oxidation level c...

Abstract The Abu Ghalaga pluton in the southern eastern desert of Egypt (SED) consists undeformed norite and hornblende gabbro intruding island arc metavolcanics, ophiolitic rocks, syn-tectonic older granitic rocks. Fe-Ti ore (mainly ilmenite) occurs form lenses at base norite. Based on microtextures, mineralogy, chemical composition, three types ilmenites are recognized: massive high-Mg type, ...

titanium dioxide is widely used in the manufacturing of paints, varnishes, lacquer, paper, paperboard, printing inks, rubber, floor covering, and ceramics and so on. white titanium dioxide pigment has been produced by two main processes. the sulfate and the chloride processes. each of these two routes requires different feedstocks. however, economic and environmental pressures are shifting the ...

Introduction: Only 5 meteorites were classified into unbrecciated lunar mare basalt so far, although there are about 40 lunar meteorites known to date. NWA 032 and its paired meteorite NWA 479 (NWA) are such crystalline mare basalts, and show a porphy-ritic texture composed of euhedral olivine and pyrox-ene grains with dendritic mesostasis of pyroxene, pla-gioclase and accessory minerals (ilmen...