Results 41 to 50 of about 456 (131)

Hydrogen preserves microstructure to enhance steelmaking dust recycling

Communications Materials
Electric arc furnace dust a hazardous waste from galvanized steel recycling, presents a significant challenge to sustainable steel production. Here, we show that hydrogen reduction, under industrially relevant conditions, offers a transformative solution
Manuel Leuchtenmüller
doaj   +1 more source

The catalytic effect of the metal bath on the zinc oxide reduction

Results in Engineering, 2022
The iron and steel industry generates about 8 million tons of electric arc furnace dust (EAFD) per year. The current standard process for treating this material stream is the Waelz process, which is not optimal in terms of the recovery rate for zinc ...
Manuel Leuchtenmüller, Ulrich Brandner
doaj   +1 more source

Formation of Light-Weight Ferroalloys in the Fe2O3-Al2O3-C System at 1550 °C: Influence of Silica Impurities

Metals, 2017
Light-weight ferro-aluminium alloys are finding increasing application in the transport sector to reduce overall weights, energy costs and CO2 emissions. As the primary production processes of both Fe and Al are among the most energy-intensive industrial
Muhammad Ikram-Ul-Haq, Partha Sarathi Mukherjee, Rita Khanna   +2 more
doaj   +1 more source

Interaction between Molten Al‐Killed Mn–B Steel and Carbon‐Bonded MgO Refractories Based on Recyclates

Advanced Engineering Materials, Volume 28, Issue 10, 20 May 2026.
High‐temperature interactions between low‐sulfur Al‐killed Mn–B steel and MgO–C refractories (0 and 50 wt% recyclates) are studied via finger immersion tests (1600 °C). Surface‐active elements influence infiltration. MgO/CaS layer forms, along with spinel and calcium silicate.
Matheus Roberto Bellé, Lukas Neubert, Anton Yehorov, Till M. J. Stadtmüller, Christos G. Aneziris, Olena Volkova   +5 more
wiley   +1 more source

Interaction of Ladle Slag With Varying SiO2 Content and Recyclate‐Based MgO–C Refractories

Advanced Engineering Materials, Volume 28, Issue 10, 20 May 2026.
Ladle slags (CaO/Al2O3 = 1) with 1–20 wt% SiO2 were investigated in contact with industrial MgO–C refractories fabricated from fresh magnesia and 50 wt% recyclate. The sessile drop method at 1600°C reveals intensive gas formation, delayed slag infiltration in recyclate‐based samples, and, under high‐SiO2 slag, formation of a dense MgAl2O4‐rich ...
Anton Yehorov, Eldar Salpagarov, Anhelina Mospan, Till Manon Jannis Stadtmüller, Thomas Schemmel, Christos Georgios Aneziris, Olena Volkova   +6 more
wiley   +1 more source

Carbothermic Reduction of Zinc Ferrite by Microwave Heating

High Temperature Materials and Processes, 2013
The kinetics of carbothermic reduction of ZnFe2O4 in the temperature range 823–1223 K, was investigated in a microwave reactor. The mechanism of formation of ZnO and Fe3O4/FeO by decomposition of ZnFe2O4 was explained using the equilibrium calculations ...
Wang Xin, Ju Shao-Hua, Srinivasakannan C., Yang Da-Jin, Peng Jin-Hui   +4 more
doaj   +1 more source

Development of Sustainable MgO–C Refractories Using MgO–C Recyclates and a Novel Eco‐Friendly Fructose–Tannin Binder Crosslinked With Citric Acid

Advanced Engineering Materials, Volume 28, Issue 10, 20 May 2026.
This study develops sustainable MgO–C refractories using recycled materials and eco‐friendly fructose–tannin binders. The enhanced performance of citric acid as a cross‐linker and functional additives on mechanical and thermomechanical properties was examined. Characterization included strength tests, immersion trials, and microstructural and inclusion
Dinesh K. Gunasekar, Jana Hubálková, Steffen Dudczig, Gert Schmidt, Florian Kerber, Thomas Schemmel, Patrick Gehre, Christos G. Aneziris   +7 more
wiley   +1 more source

An Integrated Chemicals‐Free Circular Model for Lithium Recovery From Spent Batteries to Direct Lithium Extraction From Brines

Battery Energy, Volume 5, Issue 3, May 2026.
A simple, chemical‐free method based on a 5‐min microwave treatment and using only water enables the synthesis of Li/Al layered double hydroxides (LDHs) from waste lithium‐ion batteries. These Li/Al LDHs can then be used for lithium extraction from primary resources, supporting a truly sustainable circular economy for lithium.
A. Mannu, A. Zanoletti, A. Cornelio, A. Zacco, F. Bianchi, B. Valentim, A. M. Guedes, E. Bontempi   +7 more
wiley   +1 more source

Structural Modification and Deformable Design of Electrospun Sn@C Nanofiber Anodes Through Oxide Doping for Flexible Lithium‐Ion Batteries

Rare Metals, Volume 45, Issue 5, May 2026.
ABSTRACT Size‐controllable Sn nanoparticles are designed in this work via oxide doping to be uniformly embedded into flexible N‐doped carbon nanofibers, in which the agglomeration and migration of Sn are effectively restrained due to the suppressive effect of selected oxides, including SiO2, TiO2, and ZnO. Benefiting from unique merits of the embedment
Yu Xin, Jiaxiang Li, Zhiyan Wang, Chang Miao, Shi Pan, Chengjin Liu, Wei Xiao   +6 more
wiley   +1 more source

Effect of slag composition on iron nuggets formation from carbon composite pellets

Materials Research, 2010
Iron-carbon nuggets can be obtained by high temperature reduction of iron ore by carbonaceous material when both are agglomerated together as a carbon composite pellet.
Alberto Eloy Anduze Nogueira, Marcelo Breda Mourão, Cyro Takano, Dener Martins dos Santos   +3 more
doaj   +1 more source