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Study on treatment and disposal form for used uranium catalyst for organic synthesis

Research Project

Project/Area Number 21246143
Research Category

Grant-in-Aid for Scientific Research (A)

Allocation TypeSingle-year Grants
Section一般
Research Field Nuclear engineering
Research InstitutionNagoya University

Principal Investigator

ENOKIDA Youichi  名古屋大学, 工学研究科, 教授 (40168795)

Co-Investigator(Kenkyū-buntansha) SAWADA Kayo  名古屋大学, エコトピア科学研究所, 准教授 (90372531)
杉山 貴彦  名古屋大学, 工学研究科, 准教授 (90353440)
Project Period (FY) 2009 – 2012
Project Status Completed (Fiscal Year 2012)
Budget Amount *help
¥22,230,000 (Direct Cost: ¥17,100,000、Indirect Cost: ¥5,130,000)
Fiscal Year 2012: ¥2,600,000 (Direct Cost: ¥2,000,000、Indirect Cost: ¥600,000)
Fiscal Year 2011: ¥11,700,000 (Direct Cost: ¥9,000,000、Indirect Cost: ¥2,700,000)
Fiscal Year 2010: ¥7,930,000 (Direct Cost: ¥6,100,000、Indirect Cost: ¥1,830,000)
Keywords原子力化学工学 / ウラン廃棄物 / 超臨界流体抽出 / ガラス固化 / アンチモン / 塩化揮発 / ウラン触媒 / 放射性廃棄物 / 複合酸化物 / ウラン廃棄物処理 / ウラン廃棄物処分 / アクリルニトリル
Research Abstract

For several decades, catalysts containing depleted U and Sb as a composite oxide were used for organic synthesis of acrylonitrile, and the spent catalysts are stored securely as uranium waste in Japan. A safe and economical disposal should be performed in the future. Unfortunately, however, uranium isotopes have long half lives to decay, and chemical and radioactive toxities of several daughter nuclides are too significant to dispose directly in a shallow land. We should take account of chemical toxity of antimony, too. Then we are proposing a method of decontaminating uranium and antimony and vitrifying the spent catalysts into a glass matrix by making use of the SiO2 supports of the catalyst. The goals of our study are recoveries of uranium and antimony with high yields from the tiny pores in sub-microns in diameter of SiO2 supports of the catalysts, and conditioning into a proper waste form for the shallow land disposal. In order to achieve these goals, treatment of the catalysts utilizing phase segregation phenomena of borosilicate glass was proposed and experimentally tested in a laboratory scale using a real specimen of the catalyst. The recovery yields achieved by the experiments were greater than 99.3% for uranium and 97.0% for antimony, and concentrations of uranium and antimony leached with de-ionized water for the final vitrified solids were below the detection limits by inductively coupled plasma spectrometer, 0.1 mg dm^<-3>.

Report

(5 results)
  • 2012 Annual Research Report   Final Research Report ( PDF )
  • 2011 Annual Research Report
  • 2010 Annual Research Report
  • 2009 Annual Research Report
  • Research Products

    (21 results)

All 2013 2011 2010 2009 Other

All Journal Article (6 results) (of which Peer Reviewed: 6 results) Presentation (12 results) Remarks (1 results) Patent(Industrial Property Rights) (2 results)

  • [Journal Article] Reaction of Antimony-Uranium Composite Oxide in the Chlorination Treatment of Waste Catalyst2013

    • Author(s)
      K. Sawada
    • Journal Title

      Proceedings of Waste Management Symposia 2013

      Volume: CD-ROM Pages: 1-5

    • Related Report
      2012 Annual Research Report
    • Peer Reviewed
  • [Journal Article] Chlorination of Antimony and Its Volatilization Treatment for Waste Antimony-Uranium Composite Oxide Catalyst2011

    • Author(s)
      K.Sawada, Y.Enokida
    • Journal Title

      Proceedings in Radiochemistry - A Supplement to Radiochimica Acta

      Volume: 1 Pages: 97-100

    • Related Report
      2012 Final Research Report
    • Peer Reviewed
  • [Journal Article] Chlorination of Antimony and Its Volatilization Treatment for Waste Antimony-Uranium Composite Oxide Catalyst2011

    • Author(s)
      K.Sawada, Y.Enokida
    • Journal Title

      Proceedings of Radiochemistry

      Volume: 1 Issue: 1 Pages: 97-100

    • DOI

      10.1524/rcpr.2011.0016

    • Related Report
      2011 Annual Research Report
    • Peer Reviewed
  • [Journal Article] Decontamination of uranium and antimony from the spent catalyst for the Sohio acrylonitrile process2010

    • Author(s)
      Y. Enokida, K. Sawada, H. Sugai
    • Journal Title

      Proceedings of Decommissioning, Decontamination & Reutilization

      Pages: 77-78

    • Related Report
      2012 Final Research Report
    • Peer Reviewed
  • [Journal Article] Decontamination of uranium and antimony from the spent catalyst for acrylonitrile synthesis by utilizing phase segregation of borosilicate glass2010

    • Author(s)
      Y. Enokida, K. Sawada, T. Yamada, H. Sugai
    • Journal Title

      Proceedings of the Waste Management Symposia 2010

      Volume: CD-ROM 38F

    • Related Report
      2012 Final Research Report
    • Peer Reviewed
  • [Journal Article] Chlorination of Antimony and Its Volatilization Treatment for Waste Antimony-Uranium Composite Oxide Catalyst2010

    • Author(s)
      K.Sawada, Y.Enokida
    • Journal Title

      Radiochimica Acta 98(in press)

    • Related Report
      2009 Annual Research Report
    • Peer Reviewed
  • [Presentation] Reaction of Antimony-Uranium Composite Oxide in the Chlorination Treatment of Waste Catalyst2013

    • Author(s)
      K. Sawada. D. Hirabayashi, Y. Enokida
    • Organizer
      廃棄物管理シンポジア 2013, 一般ポスター発表
    • Place of Presentation
      米国 Arizona 州 Phoenix市会議場
    • Year and Date
      2013-02-26
    • Related Report
      2012 Final Research Report
  • [Presentation] Reaction of Antimony-Uranium Composite Oxide in the Chlorination Treatment of Waste Catalyst2013

    • Author(s)
      K. Sawada
    • Organizer
      Waste Management Symposia 2013
    • Place of Presentation
      米国アリゾナ州ファニックス市
    • Related Report
      2012 Annual Research Report
  • [Presentation] Removal of uranium from waste catalyst by extraction with supercritical carbon dioxide after chlorination treatment2011

    • Author(s)
      K.Sawada, D.Hirabayashi, Y.Enokida
    • Organizer
      International Symposium on EcoTopia Science 2011
    • Place of Presentation
      名古屋大学(愛知県)
    • Year and Date
      2011-12-10
    • Related Report
      2011 Annual Research Report
  • [Presentation] Effect of Concentration of Hydrogen Chloride Gas on Chlorination Treatment of Waste Antimony-Uranium Composite Oxide Catalyst2011

    • Author(s)
      Kayo Sawada, Youichi Enokida
    • Organizer
      Waste Management Symposia 2011
    • Place of Presentation
      米国アリゾナ州フェニックス市
    • Year and Date
      2011-03-01
    • Related Report
      2010 Annual Research Report
  • [Presentation] Decontamination of Uranium and Antimony from the Spent Catalyst for the Sohio Acrylonitlile Process2010

    • Author(s)
      Youichi Enokida, Kayo Sawada
    • Organizer
      International Symposium on Decontamination, Decomissioning and Reutilization 2010
    • Place of Presentation
      米国アイダホ州アイダホフォールズ市
    • Year and Date
      2010-08-30
    • Related Report
      2010 Annual Research Report
  • [Presentation] REEMOVAL OF URANIUM FROM WASTE CATALYST OF ANTIMONY-URANIUM COMPOSITE OXIDE BY SUPERCRITICAL FLUID EXTRACTION COMBOINED WITH CHLORINATION PRETREATMENT2010

    • Author(s)
      K.Sawada, Y.Enokida
    • Organizer
      12th European Meeting on Supercritical Fluids, Abst. No.CO32, 2010
    • Place of Presentation
      オーストリア国グラーツ市
    • Year and Date
      2010-05-14
    • Related Report
      2010 Annual Research Report
  • [Presentation] Decontamination of Uranium and Antimony from Spent Catalyst for Acrylonitrile Synthesis by Utilizing Phase Segregation of Borosilicate Glass2010

    • Author(s)
      Y.Enokida, K.Sawada, 他
    • Organizer
      Waste Management Symposia 2010
    • Place of Presentation
      米国アリゾナ州ツーソン市国際会議場
    • Year and Date
      2010-03-09
    • Related Report
      2009 Annual Research Report
  • [Presentation] Decontamination of uranium and antimony from the spent catalyst for acrylonitrile synthesis by utilizing phase segregation of borosilicate glass2010

    • Author(s)
      Y. Enokida, K. Sawada, T. Yamada, H. Sugai
    • Organizer
      廃棄物管理シンポジア, 一般ポスター発表
    • Place of Presentation
      米国 Arizona 州 Phoenix 市会議場
    • Year and Date
      2010-03-08
    • Related Report
      2012 Final Research Report
  • [Presentation] Chlorination of Antimony and Its Volatilization Treatment for Waste Antimony-Uranium Composite Oxide Catalyst2009

    • Author(s)
      K. Sawada, Y. Enokida
    • Organizer
      放射化学国際会議 APSORC 09, 一般ポスター発表
    • Place of Presentation
      米国 california 州Napa 市会議場, 米国
    • Year and Date
      2009-11-30
    • Related Report
      2012 Final Research Report
  • [Presentation] Chlorination of antimony and its volatilization treatment for waste antimony-uranium composite oxide catalyst2009

    • Author(s)
      K.Sawada, Y.Enokida, et al.
    • Organizer
      The fourth international conference in the series of Asia-Pacific Symposium on Radiochemistry
    • Place of Presentation
      米国アリゾナ州ツーソン市国際会議揚
    • Year and Date
      2009-11-30
    • Related Report
      2009 Annual Research Report
  • [Presentation] Treatment and vitrification of spent catalyst for organic synthesis containing uranium and antimony2009

    • Author(s)
      Y. Enokida, T. Yamada, K. Uruga, K. Sawada
    • Organizer
      The R'09 Twin World Congress 一般ポスター発表
    • Place of Presentation
      愛知県名古屋市名古屋大学
    • Year and Date
      2009-09-15
    • Related Report
      2012 Final Research Report
  • [Presentation] Treatment and Vitrification of Spent Catalyst for Organic Synthesis Containing Uranium and Antimony2009

    • Author(s)
      Y.Enokida, K.Sawada, 他
    • Organizer
      R'09 Twin World Congress
    • Place of Presentation
      名古屋大学
    • Year and Date
      2009-09-14
    • Related Report
      2009 Annual Research Report
  • [Remarks]

    • URL

      http://www.exrespo.provost.nagoya-u.ac.jp/research/dat/029sawada/sawada.pdfresearch/dat/sawada.pdf

    • Related Report
      2012 Final Research Report
  • [Patent(Industrial Property Rights)] ウラン・アンチモン複合酸化物を含む触媒からのウランの回収を容易にする方法2009

    • Inventor(s)
      榎田洋一,澤田佳代他1名
    • Industrial Property Rights Holder
      名古屋大学,(株)スリー・アール
    • Industrial Property Number
      2009-253466
    • Filing Date
      2009-10-14
    • Related Report
      2012 Final Research Report
  • [Patent(Industrial Property Rights)] ウラン・アンチモン複合酸化物うぃ含む触媒からのウランの回収2009

    • Inventor(s)
      澤田佳代, 他
    • Industrial Property Rights Holder
      名古屋大学, 他
    • Industrial Property Number
      2009-253466
    • Acquisition Date
      2009-10-14
    • Related Report
      2009 Annual Research Report

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Published: 2010-08-23   Modified: 2019-07-29  

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