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TITANOMAGNETITE ORES: MINERAL COMPOSITION AND MÖSSBAUER SPECTROSCOPY [PDF]

Минералогия, 2017
Chemical and mineral composition of ilmenite-titanomagnetite ores from Chiney, Sludinsky, Bystrinsky and Kruchininsky deposits (East Siberia) are studied and compared with those from the Panzhihua pluton in China using microprobe and X-ray diffraction ...
V.P. Lyutoev, B.I. Gongalsky, A.B. Makeyev, A.Yu. Lysyuk, L.O. Magazina, V.I. Taskaev   +5 more
doaj  

Effective Equilibrium Reaction Zone Modeling of Hydrogen Plasma Smelting Reduction: A Scenario Analysis

steel research international, Volume 97, Issue 8, Page 4138-4161, August 2026.
The study presents a dynamic zonal model for hydrogen plasma smelting reduction (HPSR) in direct current arc furnaces, predicting time‐dependent behavior of metal, slag, and off‐gas. The study considers various industrial scenarios to quantify energy demand, hydrogen utilization, degree of reduction, and other operational sensitivities.
Tristan K. Wickham, Stephanus P. Du Preez, Dmitri G. Bessarabov, Stephan C. Louw, Ernst L. J. Kleynhans   +4 more
wiley   +1 more source

Feasibility of Red Mud Recycling via Hydrogen Plasma Smelting Reduction: Insights From Large‐Scale Laboratory Experiments

steel research international, Volume 97, Issue 8, Page 4351-4362, August 2026.
Red mud processing in a laboratory hydrogen plasma facility, exceeding one hundred grams of input material, to evaluate the first scale‐up steps for iron recovery. This study demonstrates the feasibility of red mud reduction and the removal of harmful elements.
Daniel Ernst, Jürgen Erich Platl, Daniela Pircher, Magdalena Kirchmair, Lukas Kölbl, Johannes Schenk, Susanne Michelic   +6 more
wiley   +1 more source

Automated Mineral Identification and Rock‐Type Classification of Lunar Mare Basalts Using SEM Images

Journal of Geophysical Research: Machine Learning and Computation, Volume 3, Issue 4, August 2026.
Abstract We present an automated system for identifying minerals and classifying rock types in Apollo lunar mare basalts using scanning electron microscopy (SEM) imagery. Mineral segmentation is based on a U‐Net architecture, supplemented by two scale‐aware models designed to incorporate pixel size information.
Ji‐In Jung, Sonia M. Tikoo, Jaehong Chung, Claire I. O. Nichols   +3 more
wiley   +1 more source

Phase Development in Carbothermal Reduction and Nitridation of Ilmenite Concentrates

High Temperature Materials and Processes, 2012
The phase development in the course of carbothermal reduction and nitridation of ilmentie concentrates and synthetic rutile was studied in temperature programmed reduction (623–1873 K) and isothermal reduction experiments.
Rezan Sheikh A., Zhang Guangqing, Ostrovski Oleg   +2 more
doaj   +1 more source

Reactivity improvement of ilmenite by calcium nitrate melt infiltration for Chemical Looping Combustion of biomass

Carbon Resources Conversion, 2019
Chemical Looping Combustion is a novel process that generates sequestration-ready CO2 from the combustion of woody biomass without requiring a gas separation step and without diluting the CO2 with N2 from air.
Martin Keller, Hikaru Oka, Junichiro Otomo   +2 more
doaj   +1 more source

Kamafugite Magma Pathways and Lava‐Flow Paleotopography From Three‐Dimensional Audiomagnetotelluric Imaging Constrained by Borehole Data

Earth and Space Science, Volume 13, Issue 8, August 2026.
Abstract An audiomagnetotelluric (AMT) survey was conducted within the Alto Paranaíba Igneous Province, southeastern Brazil, to delineate shallow occurrences of kamafugite, a rare ultrapotassic volcanic rock worldwide. A dense grid of AMT stations was deployed, allowing the construction of a high‐resolution 3D electrical resistivity model ...
Lucca M. Franco, Emanuele F. La Terra, Liliane P. Panetto, Adevilson O. Alves, Miguel A. Tupinambá, Sergio L. Fontes, Emin U. Ulugergerli   +6 more
wiley   +1 more source

Impact of barite and ilmenite mixture on enhancing the drilling mud weight

Egyptian Journal of Petroleum, 2018
It is common knowledge in the technology of drilling fluids, monitoring of the drilling mud weight is critical in developing a mud system that yields good well stability.
M.I. Abdou, A.M. Al-Sabagh, Hany El-Sayed Ahmed, A.M. Fadl   +3 more
doaj   +1 more source

Oxygen Fugacity Buffers and an Interactive Calculator

Geochemistry, Geophysics, Geosystems, Volume 27, Issue 8, August 2026.
Abstract Oxygen fugacity buffers are equilibrium phase assemblages that constrain the chemical potential of oxygen. They may be coexisting minerals or fluids, or their metastable extrapolations. Oxygen fugacity values vary as a function of pressure and temperature, such that raw numbers often have little interpretive value.
Michael Anenburg
wiley   +1 more source

Minerals in Iron and Titanium Skeletal Textures in Nakhlites MIL 090030, MIL 090136, MIL 090032, and MIL 03346: Comparative Analysis With Terrestrial Analogues From Canary Islands, Spain

Journal of Geophysical Research: Planets, Volume 131, Issue 8, August 2026.
Abstract The presence of minor minerals is a key factor distinguishing meteorite types, as they provide valuable insights into the formation processes, surface conditions, and evolutionary history of their parent bodies. In Martian nakhlites, one of the most distinctive minor phases is iron‐titanium oxides forming characteristic skeletal textures ...
Leire Coloma, Fernando Alberquilla, Julene Aramendia, Gorka Arana, Ed Cloutis, Juan Manuel Madariaga   +5 more
wiley   +1 more source