International comparison of impurities mixing and accumulation in steel scrap

Bibliographic Data

ID19467908
AuthorsDaryna Panasiuk (0000-0002-7798-0698, Research Center for Advanced Science and Technology University of Tokyo Tokyo Japan), Ichiro Daigo (0000-0003-1480-6083, Research Center for Advanced Science and Technology University of Tokyo Tokyo Japan, corresponding author), Takeo Hoshino (Department of Materials Engineering, Graduate School of Engineering University of Tokyo Tokyo Japan), Hideo Hayashi (0000-0001-5179-0610, Commercialization Support Department Tokyo Metropolitan Industrial Technology Research Institute Tokyo Japan), Eiji Yamasue (0000-0002-0230-0985, Department of Mechanical Engineering, College of Science and Engineering Ritsumeikan University Kusatsu Japan), Duc Huy Tran (School of Material Science and Engineering Hanoi University of Science and Technology Hanoi Vietnam), Benjamin Sprecher (0000-0002-0136-5656, Department of Sustainable Design Engineering Technical University Delft Delft The Netherlands), Feng Shi (0000-0002-4433-6185, Lishui Institute of Ecology and Environment Nanjing University Nanjing China), Volodymyr Shatokha (0000-0001-6024-0557, Ironmaking and Steelmaking Department National Metallurgical Academy of Ukraine Dnipro Ukraine)
Year2022
Volume26
Issue3
Pages1040-1050
Publication date2022-06-01
Open AccessYes
TypeARTICLE
VenueJournal of Industrial Ecology (JOURNAL)
Journal identifiersISSN: 1088-1980 • E-ISSN: 1530-9290
PublisherSpringer Science and Business Media LLC (PUBLISHER)
DOI10.1111/jiec.13246
OpenAlexW4213101949
LanguageEN
Citations received5
References cited29

The accumulation of impurities in the recycling of steel impacts the quality of secondary steel. Understanding impurity levels is crucial in the context of the proliferation of circular economy policies, expected high recycling rates, and growth of scrap consumption. By assuming the accumulation of impurities to be equal worldwide, the understanding of the extent and variation of the mixing and accumulation was limited in previous studies, and the factors influencing those variations were not considered. This is a first cross‐national comparison of impurity accumulation in recycled steel. In this study, the copper, tin, nickel, chromium, and molybdenum content was analyzed in over 500 samples of electric arc furnace rebars from China, Japan, Vietnam, Ukraine, and the Netherlands (representing northwestern Europe) with an optical emission spectrometer. The impurity content in rebars represents the content of impurities accumulated in steel scrap in the countries studied. The measured content of impurities was then used to determine the factors influencing the accumulation of those impurities. It was revealed that the recycling technology, the presence of a market for recovered metals, the quality of the material input, steelmaking practices, and the management of byproducts derived from a legislative or economic context played a role in the impurities content. By communicating on scrap chemical content, the collaboration between the recycling and steel industries could be enhanced in terms of matching the demand and supply and facilitating an increase in the scrap share in steelmaking

Electric arc furnace · Impurity · Metallurgy · Scrap · Steelmaking · Chemistry · Environmental Science · Extraction and Separation Processes · Materials Science · Metal Extraction and Bioleaching · Metallurgical Processes and Thermodynamics · Geology

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