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Maximizing the Recycling of Iron Ore Pellets Fines Using Innovative Organic Binders
Department of Material Science and Engineering, KTH Royal Institute of Technology, 100 44 Stockholm, Sweden; SWERIM AB, Aronstorpsvägen 1, 974 37 Luleå, Sweden.
SWERIM AB, Aronstorpsvägen 1, 974 37 Luleå, Sweden; Central Metallurgical Research and Development Institute (CMRDI), Cairo 12422, Egypt.
Luleå University of Technology, Department of Civil, Environmental and Natural Resources Engineering, Minerals and Metallurgical Engineering. Central Metallurgical Research and Development Institute (CMRDI), Cairo 12422, Egypt.ORCID iD: 0000-0002-2358-7719
Luleå University of Technology, Department of Civil, Environmental and Natural Resources Engineering, Minerals and Metallurgical Engineering. Central Metallurgical Research and Development Institute (CMRDI), Cairo 12422, Egypt.ORCID iD: 0000-0003-3833-0817
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2023 (English)In: Materials, E-ISSN 1996-1944, Vol. 16, no 10, article id 3888Article in journal (Refereed) Published
Abstract [en]

This research work focuses on the practicality of using organic binders for the briquetting of pellet fines. The developed briquettes were evaluated in terms of mechanical strength and reduction behavior with hydrogen. A hydraulic compression testing machine and thermogravimetric analysis were incorporated into this work to investigate the mechanical strength and reduction behavior of the produced briquettes. Six organic binders, namely Kempel, lignin, starch, lignosulfonate, Alcotac CB6, and Alcotac FE14, in addition to sodium silicate, were tested for the briquetting of pellet fines. The highest mechanical strength was achieved using sodium silicate, Kempel, CB6, and lignosulfonate. The best combination of binder to attain the required mechanical strength even after 100% reduction was found to be a combination of 1.5 wt.% of organic binder (either CB6 or Kempel) with 0.5 wt.% of inorganic binder (sodium silicate). Upscaling using an extruder gave propitious results in the reduction behavior, as the produced briquettes were highly porous and attained pre-requisite mechanical strength.

Place, publisher, year, edition, pages
MDPI, 2023. Vol. 16, no 10, article id 3888
Keywords [en]
agglomeration, pellet fines, organic binders, briquettes, reduction, green steel
National Category
Metallurgy and Metallic Materials
Research subject
Process Metallurgy
Identifiers
URN: urn:nbn:se:ltu:diva-98285DOI: 10.3390/ma16103888ISI: 000997006800001PubMedID: 37241517Scopus ID: 2-s2.0-85160659088OAI: oai:DiVA.org:ltu-98285DiVA, id: diva2:1766429
Funder
Swedish Research Council Formas, 2020-02089
Note

Validerad;2023;Nivå 2;2023-06-13 (joosat);

Licens fulltext: CC BY License

Part of Special Issue: Advances in Mineral Processing, Waste Recycling and Extractive Metallurgy

Available from: 2023-06-13 Created: 2023-06-13 Last updated: 2024-02-14Bibliographically approved

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Ahmed, HeshamElsadek, Mohamed

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