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2013 Fiscal Year Final Research Report

Recovery of platinum group metals from diesel particulate filter

Research Project

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Project/Area Number 23560889
Research Category

Grant-in-Aid for Scientific Research (C)

Allocation TypeMulti-year Fund
Section一般
Research Field Metal making engineering
Research InstitutionIwate University

Principal Investigator

YAMAGUCHI Katsunori  岩手大学, 工学部, 教授 (70220259)

Project Period (FY) 2011 – 2013
Keywords白金族金属 / リサイクル / 排気ガス浄化触媒 / スラグ
Research Abstract

A silicon carbide containing the platinum group metals is used in diesel powered automobile as a diesel particulate filter (DPF). The SiC DPF powder and Cu2O or Al2O3-CaO-SiO2 slag were heated in temperature range from 1300 to 1500 oC in air atmosphere to recover the PGM from DPF. The Cu2O flux made the Cu2O-SiO2 slag from SiC DPF. Further, we found that a flux of the Al2O3-CaO-SiO2 slag to change SiC DPF to the slag.The distribution ratio of PGMs between the slag and liquid copper for platinum, rhodium and palladium were from 0.0002 to 0.0005 in the oxygen potential range 10-8 - 10-7 atm at 1450oC.An experimental study was carried out to determine the solubility of platinum in FeOx-SiO2 slag equilibrated with a pure platinum and the liquid Pt-Cu alloy at 1300 oC and the range of oxygen partial pressure from 10-9 to 10-6. The solubility of platinum in the slag tends to increase with increasing oxygen partial pressure and content of copper in the slag.

  • Research Products

    (6 results)

All 2014 2013 2012 2011

All Journal Article (2 results) (of which Peer Reviewed: 1 results) Presentation (4 results)

  • [Journal Article] Al_2O_3-CaO-SiO_2系スラグと溶銅間の白金族金属の分配比の及ぼすスラグ組成および酸素分圧の影響2014

    • Author(s)
      西嶋和貴, 山口勉功
    • Journal Title

      日本金属学会誌

      Volume: 78(7)(掲載決定)

  • [Journal Article] 1573KにおけるFeO_x-SiO_2系スラグの白金の溶解度2013

    • Author(s)
      馬場啓充, 山口勉功
    • Journal Title

      Journal of MMIJ

      Volume: 129(5) Pages: 208-212

    • Peer Reviewed
  • [Presentation] スラグとマットおよびスラグと溶銅間の貴金属の分配挙動2014

    • Author(s)
      山口勉功
    • Organizer
      資源・素材学会春季大会
    • Place of Presentation
      東京大学生産技術研究所(東京)
    • Year and Date
      2014-03-27
  • [Presentation] 貴金属製錬におけるコレクターメタルの熱力学的性質と選択指針について2014

    • Author(s)
      山口勉功
    • Organizer
      レアメタル研究会
    • Place of Presentation
      東京大学生産技術研究所(東京)
    • Year and Date
      2014-01-10
  • [Presentation] Distribution and Solubility of Platinum Group Metals in Slags2012

    • Author(s)
      K.Yamaguchi
    • Organizer
      COM2012
    • Place of Presentation
      Niagara Falls(カナダ)
    • Year and Date
      2012-10-01
  • [Presentation] 白金族金属のスラグ損失と銅のスラグ溶解度の関係2011

    • Author(s)
      山口勉功
    • Organizer
      資源・素材2011
    • Place of Presentation
      大阪府立大学(大阪)(堺)
    • Year and Date
      2011-09-28

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Published: 2015-07-16  

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