Separation of PGMs Bearing Alumina Phase from Cordierite in Spent Automobile Catalyst by Thermal Shock

Gangfeng Liu, Ayumu Tokumaru, Shuji Owada*

*この研究の対応する著者

    研究成果: Article査読

    10 被引用数 (Scopus)

    抄録

    Spent automobile catalyst is an important secondary resource of PGMs but the present recycling technologies require high energy-consumption. It is of much important to enrich the PGMs with some energy saving physical separation methods. This catalyst is usually composed of cordierite lattice which is covered by PGMs bearing coat layer. We adopted heating-quenching process as a pre-treatment of subsequent selective grinding and compositional concentration. It was found that micro-cracks were generated in the coat layer and the interface of the two phases and that some part of the coat layer was detached from the cordierite substrate. This paper analyzes the mechanism of these phenomena by using mathematical calculation and FEM simulation.

    本文言語English
    ページ(範囲)28-35
    ページ数8
    ジャーナルResources Processing
    60
    1
    DOI
    出版ステータスPublished - 2013

    ASJC Scopus subject areas

    • 環境化学
    • 自然保全および景観保全
    • 土壌科学
    • 汚染

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