the kinetics of hydrogen reduction of fine iron oxide particles

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Kinetic hydrogen reduction curves of oxide layers on atomized steel particles …. oxide reduction on fine particles,” Izv. Vyssh. Uchebn. Zaved., Chern. … http://www.springerlink.com/index/K864455668648106.pdf
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Influence of pressure on the kinetics of synthetic llmenite …

ples was very fine, with pore diameters of typically 0.05 to 0.3 m. Intragrain gas pressure buildup … recent study[4] on the kinetics of hydrogen reduction of thin …. reduction of iron oxide, the reaction rate progressively …… particle s solid or for solid-state diffusion. K. Knudsen diffusion … http://www.springerlink.com/index/Q1503U5PN88L3887.pdf
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ITP Steel: Suspension Hydrogen Reduction of Iron Oxide Concentrate

uses hydrogen as the reducing agent for fine iron oxide concentrates in steelmaking. … kinetics of hydrogen reduction of iron oxide concentrates as a function of particle size [less than 37μm (-400 mesh)], temperature, and hydrogen … http://www1.eere.energy.gov/industry/steel/pdfs/h2suspension.pdf
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THE STICKING PROBLEM DURING DIRECT REDUCTION OF FINE IRON ORE IN …

by M Komatina – 2004 – Related articles http://www.metalurgija.org.rs/mjom/vol10/No 4/KOMATINA.pdf
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Structural and magnetic transformation of monodispersed iron oxide …

production of monodispersed fine particles with controlled microstructures,11 avoiding secondary effects ….. The kinetic of the reduction processes were followed by … Metal iron particles obtained at 450 °C under different hydrogen … http://digital.csic.es/bitstream/10261/21586/1/GetPDFServlet.pdf
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9953 Suspension Hydrogen Reduction of Iron Oxide Concentrate

reducing agent and fine iron oxide concentrates in a suspension reduction process, with the ultimate … S Determine the complete kinetics of hydrogen reduction of iron oxide concentrates as a function of particle size (less than 37µm … http://steeltrp.com/TRPGreenBook2006/9953factsheet.pdf
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[hal-00265636, v1] A laboratory study of the reduction of iron …

by D Wagner – 2006 – Related articles http://hal.archives-ouvertes.fr/docs/00/26/56/36/PDF/SD6.pdf
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ISBN 0-9781236-0-3

by AM Azad – Cited by 2 http://www.eng.utoledo.edu/~aazad/pdf/IGEC-2 paper-AZAD.pdf
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A closed-loop proposal for hydrogen generation using steel waste …

by à Abdul-Majeed Azad – 2009 – Cited by 2 http://www.eng.utoledo.edu/~aazad/pdf/IJER-2009.pdf
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The Preparation of Iron Powders Consisting of

particles by pseudomorphic reduction of cr-FeOOH with hydrogen has been studied. … on the surface of the iron oxide particles, leading to iron powders …. Clearly kinetics play an important’ role. The reaction rate decreases con- …. Abstract-The theory of the motions of a fine magnetic particle … http://ieeexplore.ieee.org/iel5/20/22905/01066464.pdf?arnumber=1066464
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EXPERJ MENTAL PROCEDURE (LIP) of goethite particles obtained were …

A pigment of acicular fine a-Fe particles for magnetic. INTRODUCTION … agents, dehydration to hematite and reduction under hydrogen. WE13 9 [21 …. Kinetic Energy (eV). Fig. 4. FdZp) electoron profiles of a-Pe particles; oxidized and annealed, … to iron oxide particles than that of only oxidized one, … http://ieeexplore.ieee.org/iel5/20/22883/01064324.pdf?arnumber=1064324
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PORE GEOMETRY OF A FUSED IRON OXIDE CATALYST

reduction in hydrogen at 4-50° 0. Table 4.—Changes in pore geometry dur reduction at different temperature? …. PORE GEOMETBY OP A FUSED IRON OXIDE CATALYST hydrogen, oxidation with steam, carburization … increased the external volume of the particles; … To study the kinetics of a flowing S3fstem in … http://www.fischer-tropsch.org/Bureau_of_Mines/bulletins/bultn_580/bultn_580_pore.pdf
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Bulletin of Science, Technology & Society

Most important, the kinetic of metal oxidation (for- ward) and oxide … iron from the spent oxide via hydrogen or carbother- mic reduction is an energy-intensive process and …. Chemical reduction synthesis of fine particle FeZrB … http://bst.sagepub.com/cgi/reprint/26/4/305.pdf?ck=nck
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Oxide reduction and diffusion in Fe-Cr alloy honeycombs

[2] performed calculations on hydrogen reduction of FeO-Cr2O3 mixtures at several …. At the appropriate magnification, a fine line scan was then performed. …. duced Fe2O3-Cr2O3 honeycombs show a few oxide particles residing at these … [7] P. K. Strangway, The Kinetics of Iron Oxide Reduction, Ph.D. Thesis, … http://www.edpsciences.org/articles/jp4/pdf/2004/08/jP4120004.pdf
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KINETICS OF IRON ORE REDUCTION BY COAL AND CHARCOAL

Reduction by Hydrogen occurs in three stages as follows: … with iron oxide particles since such solid-solid reactions are very slow. The actual reduction … http://ethesis.nitrkl.ac.in/124/1/10404014.pdf
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Reaction Mechanism of Various Types of Lunar Soil Simulants by …

hydrogen reduction. The kinetic consideration using thermogravimetry ….. of iron oxide as stated above. Mössbauer spectra of FJS-1 are shown in Fig. 10. … http://www.chemenv.titech.ac.jp/watanabe/Media/PDF-conf/Earth&Space08.pdf
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TANU MIMANI, P RAVINDRAWAT AN and K C PATIL”

by T Mimani – 1987 – Related articles http://eprints.iisc.ernet.in/13590/1/catalytic_decomp.pdf
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The Syngas Chemical Looping Process: Particle Production Scale Up …

by T Yeh – 2009 – Related articles https://kb.osu.edu/dspace/bitstream/1811/36976/1/Yeh_Thomas_Thesis_Undergrad.pdf
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Water-gas Shift with Integrated Hydrogen Separation Process

by M Flytzani-Stephanopoulos – 2001 – Related articles http://www.osti.gov/bridge/servlets/purl/790134-97Pks5/native/790134.pdf
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Title: Water-gas Shift with Integrated Hydrogen Separation Process …

produces more homogeneous mixed oxides with finer particle size than … Temperature programmed reduction (TPR) tests with H2 were run in the … fine blotting paper. Fresh membranes were heated to 400oC at a hydrogen upstream pressure of 4.4 …. [3] Carl R. F. Lund, Water gas shift kinetics over iron oxide at … http://www.osti.gov/bridge/servlets/purl/813622-19cUGK/native/813622.pdf
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HYDROGEN PLASMA SMELTING REDUCTION – AN OPTION .OR STEELMAKING IN …

by H HIEBLER – 2004 – Cited by 1 http://public.carnet.hr/metalurg/Metalurgija/2004_vol_43/No_3/MET_43_3_155_162_Hiebl.pdf
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REDUCTION OF TITANIUM· MAGNETITE CONCENTRATE CONTAINING VANADIUM

by R Paunova – 2000 – Related articles http://scindeks-clanci.nb.rs/data/pdf/1450-5339/2000/1450-53390004159P.pdf
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Screening and testing of promising solar thermochemical water …

by P Charvina – Cited by 1 http://www.cder.dz/a2h2/Medias/Download/Proc PDF/PARALLEL SESSIONS/[S04] Production – Thermochemical Cycles/14-06-06/373.pdf
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1624.pdf

10 Jul 2000 … ilmenite by means of hydrogen reduction [1, 2]. This tech- nique, acting on the inter-particles forces, may appear to be suitable to treat lunar soils containing very fine … yielded to define the kinetic model of the global chemical reaction: … hydrogen of iron oxide, gas transfer in porous re- … http://www.lpi.usra.edu/meetings/lpsc2001/pdf/1624.pdf
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2 Phase 1: Rate determining step during solid state reduction

File Format: PDF/Adobe Acrobatby L Lourens – 2003Diffusion of CO from the bulk gas to the iron oxide particle. …. as conduction within the sample affected the reaction kinetics significantly. ….. The reducibility index of Sishen fine ore was reported as 1.34 percent per minute ….. rate of reduction of iron oxide with hydrogen is significantly faster than … http://upetd.up.ac.za/thesis/submitted/etd-08192008-125855/unrestricted/02chapter2.pdf
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JFE Technical Report No.6

magnetic material, ultra fine pure iron (UFPI) powder with an average particle size of … In the manufacturing process, this iron oxide powder is reduced in hydrogen at 500–700°C, cooled … between particles formed by sintering during reduction …. coexists with the iron oxide at the particle surface layer, … http://www.jfe-steel.co.jp/en/research/report/006/pdf/006-10.pdf
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Phase and conductivity dynamics of strontium hexaferrite …

by AA Fargali – 2008 – Related articles http://www.academicjournals.org/IJPS/PDF/Pdf2008/May/Farghali et al.pdf
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Chapter 1

by MS McIntosh – 2005 – Related articles https://smartech.gatech.edu/bitstream/1853/6934/1/McIntosh_Monique_S_200505_phd.pdf
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TITLE: Water Gas Shift Kinetics at Membrane Reactor Conditions PI …

type iron oxide catalysts. The resulting kinetic model has been … susceptible to the reduction experienced by the iron oxides at high hydrogen partial … http://www.netl.doe.gov/publications/proceedings/01/ucr-hbcu/lund.pdf
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Oxide reduction and diffusion in Fe-Cr alloy honeycombs

duced Fe2O3-Cr2O3 honeycombs show a few oxide particles residing at these grain … [7] P. K. Strangway, The Kinetics of Iron Oxide Reduction, Ph.D. Thesis, … http://www.epjap.org/articles/jp4/pdf/2004/08/jP4120004.pdf
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Effects of iron surface pretreatment on kinetics of aqueous …

by YH Liou – 2005 – Cited by 3 http://ntur.lib.ntu.edu.tw/bitstream/246246/96826/1/51.pdf
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Extracellular Iron Reduction Is Mediated in Part by Neutral Red …

Amorphous iron oxide was prepared as described previously. (25). The total concentration of ….. Chemical reduction of iron by hydrogen, formate, succinate, and ….. a lower concentration of NADH in cultures than in the kinetic ….. genes and fine structure analysis of an operon essential for H2 metabolism in … http://aem.asm.org/cgi/reprint/70/6/3467.pdf

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