Microstructure of solid phase reduction on manganese oxide ore fines containing coal by microwave heating

L10 ordered FePt and FePtCu nanoparticles (NPs) with a good dispersion were successfully fabricated by a simple, green, one-step solid-phase reduction method. Fe (acac)3, Pt (acac)2, and CuO as the precursors were dispersed in NaCl and annealed at different temperatures with an H2-containing atmosphere. As the annealing temperature increased, the chemical order parameter (S), average particle size (D), coercivity (Hc), and saturation magnetization (Ms) of FePt and FePtCu NPs increased and the size distribution range of the particles became wider. The ordered degree, D, Hc, and Ms of FePt NPs were greatly improved by adding 5% Cu. The highest S, D, Hc, and Ms were obtained when FePtCu NPs annealed at 750 °C, which were 0.91, 4.87 nm, 12,200 Oe, and 23.38 emu/g, respectively. The structure and magnetic properties of FePt and FePtCu NPs at different annealing temperatures were investigated and the formation mechanism of FePt and FePtCu NPs were discussed in detail.

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Solid-Phase Decarburization of High-Carbon Ferromanganese Powders by Microwave Heating

Journal of Iron and Steel Research International ◽

10.1016/s1006-706x(13)60138-7 ◽

2013 ◽

Vol 20 (8) ◽

pp. 34-40 ◽

Cited By ~ 2

Author(s):

Li-na Guo ◽

Jin Chen ◽

Wen-li Shi ◽

Jing Zhao ◽

Ke Liu ◽

...

Keyword(s):

Microwave Heating ◽

Solid Phase ◽

High Carbon ◽

High Carbon Ferromanganese

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Characterization of Sulfidation Roasting of an Iron-Rich Manganese Oxide Ore With Elemental Sulfur

7th International Symposium on High-Temperature Metallurgical Processing ◽

10.1002/9781119274643.ch48 ◽

2016 ◽

pp. 385-394

Author(s):

Tao Jiang ◽

Li Qin ◽

Zhixiong You ◽

Yuanbo Zhang ◽

Guanghui Li

Keyword(s):

Manganese Oxide ◽

Elemental Sulfur ◽

Manganese Oxide Ore

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Enhanced microbial nitrate reduction using natural manganese oxide ore as an electron donor

Journal of Environmental Management ◽

10.1016/j.jenvman.2022.114497 ◽

2022 ◽

Vol 306 ◽

pp. 114497

Author(s):

Zhixing Xiao ◽

Qitao Jiang ◽

Yi Li ◽

Jun Zhou ◽

Dan Chen ◽

...

Keyword(s):

Manganese Oxide ◽

Electron Donor ◽

Nitrate Reduction ◽

Manganese Oxide Ore

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Direct Solid-Phase Synthesis of the β-Amyloid (1−42) Peptide Using Controlled Microwave Heating

The Journal of Organic Chemistry ◽

10.1021/jo100136r ◽

2010 ◽

Vol 75 (6) ◽

pp. 2103-2106 ◽

Cited By ~ 58

Author(s):

Bernadett Bacsa ◽

Szilvia Bősze ◽

C. Oliver Kappe

Keyword(s):

Microwave Heating ◽

Solid Phase Synthesis ◽

Solid Phase ◽

Phase Synthesis ◽

Β Amyloid ◽

Direct Solid

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Removing arsenate from water using modified manganese oxide ore: Column adsorption and waste management

Journal of Environmental Chemical Engineering ◽

10.1016/j.jece.2020.104491 ◽

2020 ◽

Vol 8 (6) ◽

pp. 104491

Author(s):

Thi Thuc Quyen Nguyen ◽

Paripurnanda Loganathan ◽

Tien Vinh Nguyen ◽

Saravanamuthu Vigneswaran

Keyword(s):

Waste Management ◽

Manganese Oxide ◽

Column Adsorption ◽

Manganese Oxide Ore

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The Metallurgical Characterization of Iron-Containing Concentrate

Materials Science Forum ◽

10.4028/www.scientific.net/msf.989.428 ◽

2020 ◽

Vol 989 ◽

pp. 428-433

Author(s):

B.M. Myrzaliev ◽

Kulgamal A. Nogaeva ◽

E.B. Kolmachikhina

Keyword(s):

Solid Phase ◽

Metallic Copper ◽

Iron Alloys ◽

Metallic Phase ◽

Phase Reduction ◽

Slag Copper ◽

Metallurgical Characterization ◽

Two Phases ◽

Metallization Process

The expediency of processing iron-containing concentrate with low iron content, increased content of manganese and copper is considered in the article. To process such a concentrate, a metallization process is proposed to produce sponge iron with a reducing agent - carbon. It was found that in solid-phase reduction at 1150 °C iron is reduced to a greater extent, as well as small particles with a copper content of about 95%, manganese is not recovered. The simulation process of metallization with carbon at a temperature of 1250 °C shows that iron is mainly distributed in the metallic phase, to a lesser extent in slag phases, manganese is distributed in two phases - metal and slag, copper is presented as a separate phase of metallic copper in the composition with iron alloys, and also composes a part of iron alloys. The reduction degree from concentrate to the metallic part is 80 - 91% for iron and 95 - 98% for copper. The presence of metallized particles of various sizes, representing phases of iron with manganese and copper was found in the slags.

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