Progress of hot metal treatmenttechnology and future outlook

Yuji Ogawa, Nobuhiro Maruoka

    Research output: Contribution to journalReview articlepeer-review

    17 Citations (Scopus)


    Progress of hot metal treatment technology in Japan and scientific researches which supported the technology are outlined. To meet the increasingly severe customer requirements for steel properties, integrated steelmakers developed technologies for purifying molten steel,centering on the divided refining process, consisting of hot metal treatment, BOFdecarburization and secondary refining. The hot metal treatment processes were put intopractice at almost all steelworks in the 1980 s. Since the 1990 s, all companies have improved and restructured the hot metal treatment facilities, aiming at not only improvement of refining efficiency so as to achieve a higher degree of purity steel with higher productivity at lower cost, but also reduction in slag volume with the environmental problems taken into consideration. The directions in which hot metal treatment technology is to be pursued in the future are also commented briefly.

    Original languageEnglish
    Pages (from-to)434-444
    Number of pages11
    JournalTetsu-To-Hagane/Journal of the Iron and Steel Institute of Japan
    Issue number4
    Publication statusPublished - 2014 Apr 14


    • Dephosphorization
    • Desulfurization
    • Historical review
    • Hot metal treatment
    • Primary refining

    ASJC Scopus subject areas

    • Condensed Matter Physics
    • Physical and Theoretical Chemistry
    • Metals and Alloys
    • Materials Chemistry


    Dive into the research topics of 'Progress of hot metal treatmenttechnology and future outlook'. Together they form a unique fingerprint.

    Cite this