Zinc Reduction/Vaporisation Behaviour from Metallurgical Wastes

Tim Kerry, Alexander Peters, Evangelos Georgakopoulos, Ashkan Hosseini, Erik Offerman, Yongxiang Yang

    Research output: Chapter in Book/Conference proceedings/Edited volumeConference contributionScientificpeer-review

    3 Citations (Scopus)
    32 Downloads (Pure)

    Abstract

    The steelmaking industry produces large quantities of zinc-bearing wastes of varying forms that cannot be treated through integrated steelmaking processes. Simultaneously, by-products of the zinc industry containing great amounts of iron and zinc are stored or landfilled. The amount of zinc in these materials is generally below that which is of value to be recycled directly to the zinc smelter, consequently a method of concentration is required. Tata Steel owns and operates the pilot HIsarna ironmaking plant which, due to its high raw materials flexibility, is attractive for the purpose of processing secondary iron sources. Furthermore, it can facilitate the simultaneous recovery of a zinc-enriched flue dust. The high temperature behaviour of various waste materials will be presented with regards to their recyclability in the HIsarna furnace. Blast furnace (BF) sludge and basic oxygen furnace (BOF) sludge from Tata Steel IJmuiden have been studied along with ‘goethite’ waste produced by Nyrstar. The various input materials have been comprehensively characterised and their reduction/vaporisation behaviour recorded. Mixed samples have been produced and tested in order to define the most appropriate form of delivery of these materials to the HIsarna furnace.

    Original languageEnglish
    Title of host publicationPbZn 2020
    Subtitle of host publication9th International Symposium on Lead and Zinc Processing
    EditorsA. Siegmund, S. Alam, J. Grogan, U. Kerney, E. Shibata
    Place of PublicationCham, Switzerland
    PublisherSpringer Science+Business Media
    Pages811-819
    ISBN (Electronic)978-3-030-37070-1
    ISBN (Print)978-3-0303-7069-5
    DOIs
    Publication statusPublished - 2020
    Event9th International Symposium on Lead and Zinc Processing, PbZn 2020, held in conjunction with the 149th Annual Meeting and Exhibition, TMS 2020 - San Diego, United States
    Duration: 23 Feb 202027 Feb 2020

    Publication series

    NameMinerals, Metals and Materials Series
    ISSN (Print)2367-1181
    ISSN (Electronic)2367-1696

    Conference

    Conference9th International Symposium on Lead and Zinc Processing, PbZn 2020, held in conjunction with the 149th Annual Meeting and Exhibition, TMS 2020
    Country/TerritoryUnited States
    CitySan Diego
    Period23/02/2027/02/20

    Bibliographical note

    Green Open Access added to TU Delft Institutional Repository 'You share, we take care!' - Taverne project https://www.openaccess.nl/en/you-share-we-take-care

    Otherwise as indicated in the copyright section: the publisher is the copyright holder of this work and the author uses the Dutch legislation to make this work public.

    Keywords

    • Dusts
    • HIsarna
    • Recycling
    • Self-reduction
    • Zinc

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