A new trend of physical concentration in resources recycling

    Research output: Contribution to journalArticle

    Abstract

    Physical separation is one of the key technologies in the field of resources recycling for concentrating targeted component(s) and could create an environment friendly recycling process because of their relatively low energy consumption and low cost required. Physical separation process involves two kinds of stages, one is comminution for achieving the liberation of targeted component(s) and the other is real separation of target component(s) from the others. Recently a variety of smart comminution processes, involving mechanical and electrical disintegration as well as the pre-treatment, is developed for aiming selective breakage of phase boundaries of the solid materials to be recycled. The paper indicated several examples of such processes, (1) selective mechanical comminution for effective utilization of aluminum dross, (2) two-stage comminution for recovering minor rare metals from electronic appliances, and (3) concentration of platinum group metals from spent automobile catalyst. The paper also mentioned a sensor based sorting (SBS) process by combining several sensing systems, XRT and XRF, to achieve a horizontal recycling of scrap aluminum.

    Original languageEnglish
    Pages (from-to)129-136
    Number of pages8
    JournalEngineering Journal
    Volume20
    Issue number4
    DOIs
    Publication statusPublished - 2016 Aug 1

    Fingerprint

    Comminution
    Recycling
    Aluminum
    Disintegration
    Phase boundaries
    Metals
    Sorting
    Automobiles
    Platinum
    Energy utilization
    Catalysts
    Sensors
    Costs

    Keywords

    • Electrical disintegration
    • Horizontal recycling
    • Sensor based sorting
    • Smart comminution

    ASJC Scopus subject areas

    • Engineering(all)

    Cite this

    A new trend of physical concentration in resources recycling. / Owada, Shuji.

    In: Engineering Journal, Vol. 20, No. 4, 01.08.2016, p. 129-136.

    Research output: Contribution to journalArticle

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