Results 151 to 160 of about 43,321 (210)
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Reduction of Ilmenite and Ilmenite Ores
1973In recent years there has been a rising interest in the solid state reduction of ilmenite ores. This interest is linked with the processes for the production of synthetic rutile which involve the selective reduction of the iron oxides present to the metallic state.
D. Poggi, G. G. Charette, M. Rigaud
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Lunar Cumulate Mantle Overturn: A Model Constrained by Ilmenite Rheology
Journal of Geophysical Research: Planets, 2019Lunar cumulate mantle overturn has been proposed to explain the abundances of TiO2 and heat‐producing elements (U, Th, and K) in the source region of lunar basalts.
Haoyuan Li +6 more
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Enhanced separation for ilmenite tailings with a novel HGMS-flotation process
Separation Science and Technology, 2020China is rich in titanium resources, which accounts for more than 35% of the world. But, until today, the industrial TiO2 recovery for ilmenite ore is slightly higher than 30% in the current pulsating high-gradient magnetic separation-flotation process ...
Huifen Zhang +4 more
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Geochimica et Cosmochimica Acta, 1988
Abstract The ilmenite-rutile-ironequilibriaand ulvospinel-ilmenite-iron equilibria have been studied in the temperature range 990–1320 and 1050–1355 K, respectively, using an electrochemical technique. Effects on experimental results from deviations from the ideal stoichiometries FeTiO 3 , TiO 2 and Fe 2 TiO 4 have been modelled from available data
Hugh St.C O'Neill +2 more
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Abstract The ilmenite-rutile-ironequilibriaand ulvospinel-ilmenite-iron equilibria have been studied in the temperature range 990–1320 and 1050–1355 K, respectively, using an electrochemical technique. Effects on experimental results from deviations from the ideal stoichiometries FeTiO 3 , TiO 2 and Fe 2 TiO 4 have been modelled from available data
Hugh St.C O'Neill +2 more
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Microwave-Absorbing of Carbothermic Reduced Products of Ilmenite and Oxidized Ilmenite
Journal of Microwave Power and Electromagnetic Energy, 2014AbstractMicrowave-absorbing characteristics of carbothermic reduction products of ilmenite and oxidized ilmenite were investigated by the method of microwave cavity perturbation and XRD. Results show that there is a great change of microwave-absorbing characteristics of reduction product from oxidized ilmenite by microwave heating at temperatures of ...
Xinying Wang +7 more
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Physics of the Earth and Planetary Interiors, 1976
Ultrasonic data for the velocities of the ilmenites MgTiO3 and CoTiO3 have been determined as a function of pressure to 7.5 kbar at room temperature for polycrystalline specimens hot-pressed in a piston-cylinder apparatus at pressures up to 30 kbar. Titanate and germanate ilmenites define divergent isostructural trends on a Birch diagram of bulk sound ...
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Ultrasonic data for the velocities of the ilmenites MgTiO3 and CoTiO3 have been determined as a function of pressure to 7.5 kbar at room temperature for polycrystalline specimens hot-pressed in a piston-cylinder apparatus at pressures up to 30 kbar. Titanate and germanate ilmenites define divergent isostructural trends on a Birch diagram of bulk sound ...
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Economic Geology, 1960
Discussion of a paper by B.H. Flinter (GeoScience Abstracts 1-1752). The term "hydroilmenite" is less preferable than "altered ilmenite" or "weathered ilmenite." The use of the term "arizonite" for fine-grained but well-crystallized alteration products of ilmenite is unjustified because this type of material is well covered by the term "leucoxene." A ...
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Discussion of a paper by B.H. Flinter (GeoScience Abstracts 1-1752). The term "hydroilmenite" is less preferable than "altered ilmenite" or "weathered ilmenite." The use of the term "arizonite" for fine-grained but well-crystallized alteration products of ilmenite is unjustified because this type of material is well covered by the term "leucoxene." A ...
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Economic Geology, 1966
Ilmenite and its alteration products in commercial heavy-mineral concentrates were studied by means of chemical analysis, optical microscopy, electron microscopy, electron microprobe, and X-ray diffraction. Breakdown of ilmenite involves oxidation and ultimate removal of iron.
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Ilmenite and its alteration products in commercial heavy-mineral concentrates were studied by means of chemical analysis, optical microscopy, electron microscopy, electron microprobe, and X-ray diffraction. Breakdown of ilmenite involves oxidation and ultimate removal of iron.
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Chloridization beneficiation of ilmenite
Metallurgical Transactions B, 1984Chloridization is a potential method of beneficiating ilmenite. Studies on beneficiation of ilmenite were carried out by using titanium chloride as the chloridizing agent in a laboratory scale fluidized bed reactor. Experiments were conducted on 1, 10, and 36 grams per batch scale, and the effect of the various rate determining steps on conversion was ...
K. Swaminathan, CH. Sridhar Rao
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Mechanochemical Reactions of Ilmenite
Materials Science Forum, 1998Natural ilmenite samples (containing both FeTiO 3 and Fe 2 Ti 3 O 9 phases) have been ball milled in two atmospheres (vacuum and air). Different mechanochemical reactions were observed and the reaction processes were investigated by analysing the as-milled samples using X-ray diffraction and Mossbauer spectroscopy.
Ying Chen, J.S. Williams, S.J. Campbell
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