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Full understanding on formation and characteristics of magnesium silicate hydrate

Research Project

Project/Area Number 19H00878
Research Category

Grant-in-Aid for Scientific Research (A)

Allocation TypeSingle-year Grants
Section一般
Review Section Medium-sized Section 31:Nuclear engineering, earth resources engineering, energy engineering, and related fields
Research InstitutionHokkaido University

Principal Investigator

Tsutomu SATO  北海道大学, 工学研究院, 教授 (10313636)

Co-Investigator(Kenkyū-buntansha) 大竹 翼  北海道大学, 工学研究院, 准教授 (80544105)
Project Period (FY) 2019-04-01 – 2022-03-31
Project Status Completed (Fiscal Year 2021)
Budget Amount *help
¥43,160,000 (Direct Cost: ¥33,200,000、Indirect Cost: ¥9,960,000)
Fiscal Year 2021: ¥14,820,000 (Direct Cost: ¥11,400,000、Indirect Cost: ¥3,420,000)
Fiscal Year 2020: ¥15,210,000 (Direct Cost: ¥11,700,000、Indirect Cost: ¥3,510,000)
Fiscal Year 2019: ¥13,130,000 (Direct Cost: ¥10,100,000、Indirect Cost: ¥3,030,000)
Keywordsマグネシウムシリケート水和物 / 低結晶性物質 / 地球化学モデリング / 有害物質 / 隔離 / 低結晶性物室
Outline of Research at the Start

低結晶質準安定相のマグネシウムシリケート水和物(M-S-H)の組成や構造、物性の理解およびその生成条件の理解のため、1)様々な組成のM-S-Hの合成、2)合成M-S-Hのキャラクタリゼーション、3)分光学的手法および分子動力学的計算による構造推定、4) 様々な組成を有するM-S-H生成の地球化学反応モデリングによる再現、5)天然に産するM-S-Hの探査と現地調査、6)有害物質の隔離に対するM-S-H生成の影響評価を実施する。また、天然に産するM-S-Hの検討も合わせることで、実験的に合成されるものとの物性比較や生成条件の検証が可能となり、M-S-Hのロバストな理解とその影響評価に近づける。

Outline of Final Research Achievements

In this study, the true character (composition, structure, etc.) of magnesium silicate hydrate (M-S-H) was revealed through synthesis experiments and precise characterization of the products, thermodynamic investigations, exploration and production confirmation in various natural environments, and observation of alteration to more stable phase over time on a geological time scale. We were also able to construct and validate a geochemical reaction model and database that can predict the formation of M-S-H. Therefore, it is now possible to use the validated models and databases to predict whether or not M-S-H is produced and the amount of M-S-H produced in various engineering scenarios where M-S-H is expected to be produced.

Academic Significance and Societal Importance of the Research Achievements

マグネシウムシリケート水和物(M-S-H)は、おそらく低結晶性物質であるために、様々な場面で今までは見過ごされていた可能性が高く、その生成環境での振舞いに関する知見がほとんど蓄積されていなかった。このM-S-Hに関して、その正体(組成や構造等)や生成条件が明らかになっただけでなく、ニッケル等有用金属の資源探査、地熱発電のスケール抑制、二酸化炭素の地中貯留、放射性廃棄物の地層処分、石油増進回収等の地球工学的な様々な分野、セメントが関係する土木・建築工学、さらには地球外天体での存在予測等、広範な学術分野でのM-S-H生成や生成量の予測が可能となった。

Report

(5 results)
  • 2021 Annual Research Report   Final Research Report ( PDF )
  • 2020 Annual Research Report
  • 2019 Comments on the Screening Results   Annual Research Report
  • Research Products

    (28 results)

All 2022 2021 2020 2019 Other

All Int'l Joint Research (6 results) Journal Article (3 results) (of which Int'l Joint Research: 1 results,  Peer Reviewed: 3 results,  Open Access: 2 results) Presentation (18 results) (of which Int'l Joint Research: 10 results,  Invited: 2 results) Remarks (1 results)

  • [Int'l Joint Research] シェフィールド大学(英国)

    • Related Report
      2021 Annual Research Report
  • [Int'l Joint Research] IDAEA, CSIC(スペイン)

    • Related Report
      2021 Annual Research Report
  • [Int'l Joint Research] フィリピン大学(フィリピン)

    • Related Report
      2021 Annual Research Report
  • [Int'l Joint Research] 地質調査所(ミャンマー)

    • Related Report
      2021 Annual Research Report
  • [Int'l Joint Research] ハサヌディン大学(インドネシア)

    • Related Report
      2021 Annual Research Report
  • [Int'l Joint Research] IDAEA(スペイン)

    • Related Report
      2019 Annual Research Report
  • [Journal Article] Mineralogical evolution of a weathering profile in the Tagaung Taung Ni laterite deposit: significance of smectite in the formation of high-grade Ni ore in Myanmar2022

    • Author(s)
      Murofushi, A., Otake, T., Sanematsu, K., Zay Ya, K., Ito, A., Kikuchi, R., T. Sato
    • Journal Title

      Mineralium Deposita

      Volume: 158 Issue: 7 Pages: 1107-1122

    • DOI

      10.1007/s00126-021-01089-6

    • Related Report
      2021 Annual Research Report
    • Peer Reviewed / Int'l Joint Research
  • [Journal Article] PRECIPITATION OF MAGNESIUM SILICATE HYDRATES IN NATURAL ALKALINE SURFACE ENVIRONMENTS2020

    • Author(s)
      Nishiki, Y., Sato, T., Katoh, T., Otake, T., and Kikuchi, R.
    • Journal Title

      Clay Science

      Volume: 24 Issue: 1 Pages: 1-13

    • DOI

      10.11362/jcssjclayscience.24.1_1

    • NAID

      130007864072

    • ISSN
      0009-8574, 2186-3555
    • Year and Date
      2020-06-30
    • Related Report
      2020 Annual Research Report
    • Peer Reviewed / Open Access
  • [Journal Article] Formation of natural silicate hydrates by the Interaction of alkaline seepage and sediments derived from serpentinized ultramafic rocks at Narra, Palawan, the Philippines2020

    • Author(s)
      Shimbashi, M., Yokoyama, S., Watanabe, Y., Sato, T., Otake, T., Kikuchi, R., Yamakawa, M. and Fujii, N.
    • Journal Title

      Minerals

      Volume: 10 Issue: 8 Pages: 719-719

    • DOI

      10.3390/min10080719

    • Related Report
      2020 Annual Research Report
    • Peer Reviewed / Open Access
  • [Presentation] Formation processes of Ni laterite deposits: implications for exploration, processing, and environments2021

    • Author(s)
      T. Otake
    • Organizer
      International Webinar 2021: “Managing Mine and Metallurgical Wastes for a Sustainable Metal Industry: Valorization and Remediation”
    • Related Report
      2021 Annual Research Report
    • Int'l Joint Research / Invited
  • [Presentation] Mg-silicate hydrate formation via simultaneous MgO dissolution at pH 10 and 50 °C in an open system2021

    • Author(s)
      Y. Nishiki, T. Sato, J. Cama, M. Shimbashi, T. Otake and R. Kikuchi
    • Organizer
      Goldschmidt 2021
    • Related Report
      2021 Annual Research Report
    • Int'l Joint Research
  • [Presentation] 常温常圧下における Fe(II)粘土鉱物の合成とキャラクタリゼーション2021

    • Author(s)
      西木悠人, 佐久間祐樹, 大竹翼, 菊池亮佑, 佐藤努
    • Organizer
      第64回粘土科学討論会
    • Related Report
      2021 Annual Research Report
  • [Presentation] 異なる温度におけるマグネシウムシリケート水和物の溶解度2021

    • Author(s)
      金田隆吾, 西木悠人, 菊池亮佑, 大竹翼, 佐藤努
    • Organizer
      第64回粘土科学討論会
    • Related Report
      2021 Annual Research Report
  • [Presentation] フィリピンパラワン島ナラ地区における高アルカリ地下水と共存する火山ガラスの特徴2021

    • Author(s)
      菊池亮佑, 藤井直樹, 木村志照, 佐藤努
    • Organizer
      第64回粘土科学討論会
    • Related Report
      2021 Annual Research Report
  • [Presentation] Fe(II)-Si-H2O系およびMg-Si-H2O系における常温常圧下での鉱物の沈殿形成2021

    • Author(s)
      西木悠人, 佐久間祐樹, 大竹翼, 菊池亮佑, 佐藤努
    • Organizer
      日本地球化学会第68回年会.
    • Related Report
      2021 Annual Research Report
  • [Presentation] アルカリ活性材料による鉄共沈スラリーに吸着した陰イオンの保持2021

    • Author(s)
      佐藤 努,Chaerun Raudhatul Islam,Yogarajah Elakneswaran,平木 義久,大杉 武史,曽根 智之,黒木 亮一郎,John Provis
    • Organizer
      日本原子力学会2021年秋の大会
    • Related Report
      2021 Annual Research Report
  • [Presentation] Niラテライト鉱床の高品位鉱石形成に関わる地球化学的要因2021

    • Author(s)
      大竹 翼
    • Organizer
      資源地質学会第70回年会
    • Related Report
      2021 Annual Research Report
    • Invited
  • [Presentation] Mineralogical and geochemical characteristics of magnesium silicate hydrates in nature: Implications for engineering geology applications2020

    • Author(s)
      Y. Nishiki, T. Sato, T. Katoh, T. Otake, R. Kikuchi
    • Organizer
      The 4th Asian Clay Conference
    • Related Report
      2020 Annual Research Report
    • Int'l Joint Research
  • [Presentation] Paragenesis of C-S-H and Fe-, Mg-rich smectite formed by the interaction of alkaline groundwater and ultramafic sediments2020

    • Author(s)
      R. Kikuchi, T. Sato, M. Shimbashi, Y. Nishiki, N. Fujii, Y. Kimura
    • Organizer
      The 4th Asian Clay Conference
    • Related Report
      2020 Annual Research Report
    • Int'l Joint Research
  • [Presentation] Properties of precipitates in alkaline Fe2+-SiO2-H2O systems2020

    • Author(s)
      佐久間 祐樹, 西木 悠人, 菊池 亮佑, 大竹 翼, 佐藤 努
    • Organizer
      JpGU-AGU Joint Meeting 2020
    • Related Report
      2020 Annual Research Report
    • Int'l Joint Research
  • [Presentation] インドネシアおよびミャンマーにおける超苦鉄質岩の化学風化とニッケル濃集に与える地球化学的要因2020

    • Author(s)
      大竹 翼
    • Organizer
      JpGU-AGU Joint Meeting 2020
    • Related Report
      2020 Annual Research Report
    • Int'l Joint Research
  • [Presentation] M-S-H precipitation via simultaneous dissolution of chalcedony2019

    • Author(s)
      MISATO SHIMBASHI, SHINGO YOKOYAMA, YASUTAKA WATANABE, JORDI CAMA, TSUTOMU SATO
    • Organizer
      Goldshmidt 2019, Barcelona International Convention Centre, Barcelona, Spain,
    • Related Report
      2019 Annual Research Report
    • Int'l Joint Research
  • [Presentation] Mineralogical evolution of Fe-Mg-Si phases under low-temperature, alkaline conditions at Narra in Palawan, Philippines2019

    • Author(s)
      Misato Shimbashi, Shingo Yokoyama, Yasutaka Watanabe, Fujii Naoki, Minoru Yamakawa, Tsutomu Sato
    • Organizer
      Natural Analogue Working Group 16th Workshop
    • Related Report
      2019 Annual Research Report
    • Int'l Joint Research
  • [Presentation] マグネシウムシリケートハイドレートの生成に関する機構論的・速度論的研究2019

    • Author(s)
      西木 悠人,新橋 美里,佐藤 努,大竹翼
    • Organizer
      第63回粘土科学討論会
    • Related Report
      2019 Annual Research Report
  • [Presentation] 天然アルカリ環境において生成した低結晶質マグネシウムケイ酸塩の観察とフロースルー実験2019

    • Author(s)
      西木 悠人,新橋 美里,佐藤 努,大竹翼
    • Organizer
      日本地球惑星科学連合2019年大会
    • Related Report
      2019 Annual Research Report
  • [Presentation] Formation of low‐crystalline magnesium silicate at Kamuikotan metamorphic belts, Hokkaido, Japan2019

    • Author(s)
      Y. Nishiki, T. Sato, T. Otake
    • Organizer
      EUROCLAY2019
    • Related Report
      2019 Annual Research Report
    • Int'l Joint Research
  • [Presentation] Precipitation of magnesium silicate hydrate at ambient temperature under natural alkaline conditions2019

    • Author(s)
      Y. Nishiki, T. Sato, T. Katoh, T. Otake, R. Kikuchi
    • Organizer
      Natural Analogue Working Group 16th Workshop
    • Related Report
      2019 Annual Research Report
    • Int'l Joint Research
  • [Remarks] マグネシウムシリケート水和物: その正体と生成の全容解明

    • URL

      http://eg-hokudai.com/19h00878/

    • Related Report
      2021 Annual Research Report 2020 Annual Research Report

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Published: 2019-04-18   Modified: 2023-01-30  

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