Results 11 to 20 of about 92,639 (291)

Review on the Oxidation Behaviors and Kinetics of Magnetite in Particle Scale

Steel Research International, 2021
One possible route for ironmaking process is using a hydrogen‐gas‐based fluidized bed to produce direct reduced iron (DRI), which allows to use the natural magnetite directly in particle scale.
Heng Zheng, J. Schenk, Daniel Spreitzer, T. Wolfinger, Oday Daghagheleh   +4 more
semanticscholar   +1 more source

In situ LA-ICP-MS Determination of Trace Elements in Magnetite from a Gypsum-Salt Bearing Iron Deposit and Geochemical Characteristics

Yankuang ceshi, 2022
BACKGROUND Gypsum-salt formation affects the oxygen fugacity of ore-forming fluid and changes the fluid composition, and then affects the trace element composition, which plays an important indicator role in the formation of iron ore deposits. Therefore,
HU Liang, ZHANG Dexian, LOU Wei, HU Ziqi, LIU Jinbo   +4 more
doaj   +1 more source

Stability Improvement of Humic Acid as Sorbent through Magnetite and Chitin Modification

Jurnal Kimia Sains dan Aplikasi, 2020
Stability improvement of humic acid (HA) through modification of HA by chitin (HA-chitin) followed by a coating of HA-chitin on magnetite has been successfully performed.
Bambang Rusdiarso, Rahmat Basuki
doaj   +1 more source

Effect of Ni2+, Zn2+, and Co2+ on green rust transformation to magnetite

Geochemical Transactions, 2022
In this study, we investigated Ni2+, Zn2+, and Co2+ mineralogical incorporation and its effect on green rust transformation to magnetite. Mineral transformation experiments were conducted by heating green rust suspensions at 85 °C in the presence of Ni2+,
Orion Farr, Evert J. Elzinga, Nathan Yee
doaj   +1 more source

Nanoscale mechanism of UO2 formation through uranium reduction by magnetite

Nature Communications, 2020
Uranium (U) is a ubiquitous element in the Earth’s crust at ~2 ppm. In anoxic environments, soluble hexavalent uranium (U(VI)) is reduced and immobilized.
Z. Pan, B. Bártová, T. Lagrange, S. Butorin, N. Hyatt, M. Stennett, K. Kvashnina, R. Bernier-Latmani   +7 more
semanticscholar   +1 more source

Necessity of electrically conductive pili for methanogenesis with magnetite stimulation [PDF]

PeerJ, 2018
Background Magnetite-mediated direct interspecies electron transfer (DIET) between Geobacter and Methanosarcina species is increasingly being invoked to explain magnetite stimulation of methane production in anaerobic soils and sediments.
Oumei Wang, Shiling Zheng, Bingchen Wang, Wenjing Wang, Fanghua Liu   +4 more
doaj   +2 more sources

Synthesis and characterization of magnetite nano particles with high selectivity using in-situ precipitation method

Separation Science and Technology, 2020
In-situ precipitation method is widely used and reported in the literature for the synthesis of iron oxide nanoparticles based on their applications in many fields.
Harith Rashid, M. Mansoor, B. Haider, R. Nasir, S. B. Abd Hamid, A. Abdulrahman   +5 more
semanticscholar   +1 more source

Nanofabrication of hybrid nanomaterials: Macroscopically aligned nanoparticles pattern via directed self‐assembly of block copolymers

Journal of Applied Polymer Science, Volume 140, Issue 5, February 5, 2023., 2023
Abstract Periodic hybrid nanostructured materials based on aligned inorganic nanoparticles within self‐assembled copolymer matrixes aimed to harness the collective properties of generated functional nanomaterials. The nanoparticles are desirable for their useful magnetic, optical, catalytic, and electronic properties owed to the quantum confinement ...
Cesar Mendoza, Viraj Pratap Nirwan, Amir Fahmi   +2 more
wiley   +1 more source

An integrated study of the electrical parameters of the samples of magnetite ores in relation to their genesis and mineral composition (on the example of the Goroblagodatskoe skarn-magnetite deposit)

Известия высших учебных заведений: Геология и разведка, 2019
The temperature dependences of electrical resistance (at DC and AC voltage at 1 kHz frequency) of the samples of the magnetite ore and magnetite from the contact of the syenite-porphyry with the volcanic-sedimentary rocks from the Goroblagodatskoye iron ...
V. V. Bakhterev
doaj   +1 more source

Magnetite and Green Rust: Synthesis, Properties, and Environmental Applications of Mixed-Valent Iron Minerals.

Chemical Reviews, 2018
Mixed-valent iron [Fe(II)-Fe(III)] minerals such as magnetite and green rust have received a significant amount of attention over recent decades, especially in the environmental sciences.
Muhammad Usman, Muhammad Usman, James M. Byrne, A. Chaudhary, A. Chaudhary, Silvia Orsetti, Khalil Hanna, Christian Ruby, Andreas Kappler, S. Haderlein   +9 more
semanticscholar   +1 more source