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Development of Elemental Technologies for Ore Particle Separation System using an In-Situ Measurement Method for Metal Grade of Seabed Ores

Research Project

Project/Area Number 16H04609
Research Category

Grant-in-Aid for Scientific Research (B)

Allocation TypeSingle-year Grants
Section一般
Research Field Naval and maritime engineering
Research InstitutionNational Institute of Maritime, Port and Aviation Technology

Principal Investigator

NAKAJIMA Yasuharu  国立研究開発法人海上・港湾・航空技術研究所, 海上技術安全研究所, 上席研究員 (30344237)

Co-Investigator(Kenkyū-buntansha) ソーントン ブレア  東京大学, 生産技術研究所, 准教授 (60526789)
藤田 豊久  東京大学, 大学院工学系研究科(工学部), 教授 (70124617)
Project Period (FY) 2016-04-01 – 2019-03-31
Project Status Completed (Fiscal Year 2018)
Budget Amount *help
¥13,260,000 (Direct Cost: ¥10,200,000、Indirect Cost: ¥3,060,000)
Fiscal Year 2018: ¥2,080,000 (Direct Cost: ¥1,600,000、Indirect Cost: ¥480,000)
Fiscal Year 2017: ¥4,940,000 (Direct Cost: ¥3,800,000、Indirect Cost: ¥1,140,000)
Fiscal Year 2016: ¥6,240,000 (Direct Cost: ¥4,800,000、Indirect Cost: ¥1,440,000)
Keywords海底熱水鉱床 / レーザー誘起ブレイクダウン分光法 / 品位 / 浮遊選鉱 / 液液抽出法 / 接触角 / ジグ選別 / スラリー / 鉱石品位 / 粒子選別システム / 分離装置 / 分離手法 / 海洋資源 / 資源開発工学 / レーザー分光法 / 分離工学 / 深海環境
Outline of Final Research Achievements

To develop ore particle separation system, which beneficiate ores of seabed mineral resources such as seafloor massive sulfides on deep seafloor, elemental technologies of the separation system, i.e., separation method for ore particles and measurement method for ore grade, were studied. In study on separation method, applicability of flotation, liquid-liquid extraction and zig separation to the separation system was investigated. To evaluate the applicability of flotation and liquid-liquid extraction, a basic property on wettability of ore surfaces, contact angle, was measured at high pressures. In study on measurement method, applicability of Laser-Induced Breakdown Spectroscopy (LIBS), which is an optical method for elemental analysis using pulse laser and can be applicable under deep-sea conditions, to the separation system was also investigated. It is expected that the ore particle separation system can be designed by combining the separation method and measurement method.

Academic Significance and Societal Importance of the Research Achievements

海底熱水鉱床等の海底鉱物資源は、我が国に残された貴重な非在来型鉱物資源であり、その開発・利用のための技術の開発は海洋資源開発の推進に不可欠である。本研究では、陸上鉱山で広く利用されている選別技術を深海底で稼働する選別システムに適用することを提案し、その適用可能性を検討するため、高圧条件下での物性測定を中心とした基礎的なデータの取得に注力した。また、レーザーによる品位計測手法の検討では、粉砕・ふるい分けした鉱石粒子をスラリー化し、これを流動させた状態での品位計測試験を実施し、品位データを取得できることを確認した。本研究の成果は、今後の海底鉱物資源開発の推進に資すると期待される。

Report

(4 results)
  • 2018 Annual Research Report   Final Research Report ( PDF )
  • 2017 Annual Research Report
  • 2016 Annual Research Report
  • Research Products

    (9 results)

All 2019 2018 2016

All Journal Article (2 results) (of which Peer Reviewed: 2 results) Presentation (7 results) (of which Int'l Joint Research: 4 results)

  • [Journal Article] Experimental Study on Bubble Size Measurement for Development of Seafloor Massive Sulfides2019

    • Author(s)
      Imai, S., Nakajima, Y., Murai, M.
    • Journal Title

      Proceedings of the ASME 2019 38th International Conference on Ocean, Offshore and Arctic Engineering

      Volume: -

    • DOI

      10.1115/omae2019-95186

    • Related Report
      2018 Annual Research Report
    • Peer Reviewed
  • [Journal Article] Development of Elemental Technologies for Seafloor Mineral Processing of Seafloor Massive Sulfides2019

    • Author(s)
      Nakajima, Y., Yamamoto, J., Takahashi, T., Thornton, B., Yamabe, Y., Dodbiba, G., Fujita, T.
    • Journal Title

      Proceedings of the ASME 2019 38th International Conference on Ocean, Offshore and Arctic Engineering

      Volume: -

    • DOI

      10.1115/omae2019-96040

    • Related Report
      2018 Annual Research Report
    • Peer Reviewed
  • [Presentation] 海底熱水鉱床開発のための気泡径計測の研究2018

    • Author(s)
      今井せいら, 加藤俊司, 中島康晴, 村井基彦
    • Organizer
      日本船舶海洋工学会2018年春季講演会
    • Related Report
      2018 Annual Research Report
  • [Presentation] Measurement of Metal Grade of Ore Particles in Slurry Using Laser-Induced Breakdown Spectroscopy2018

    • Author(s)
      Nakajima, Y., Yamamoto, J., Takahashi, T., Thornton, B., Dodbiba, G., Fujita, T.
    • Organizer
      OCEANS'18 MTS/IEEE KOBE-TECHNO-OCEAN'18
    • Related Report
      2018 Annual Research Report
    • Int'l Joint Research
  • [Presentation] 海底熱水鉱床の海底選鉱に関する基盤的検討2018

    • Author(s)
      山辺雄太, 中島康晴, 藤田豊久, ドドビバ・ジョルジ
    • Organizer
      平成30年度資源・素材関係学協会合同秋季大会
    • Related Report
      2018 Annual Research Report
  • [Presentation] Deep-Sea Mining R&D Activities in the NMRI2018

    • Author(s)
      Yamamoto, J., Masanobu, S., Nakajima, Y., Takahashi, I., Kanada, S., Ono, M., Fujiwara, T., Takano, S., Araki, M., Yamamoto, M.
    • Organizer
      47th Underwater Mining Conference
    • Related Report
      2018 Annual Research Report
    • Int'l Joint Research
  • [Presentation] 海底熱水鉱床開発のための気泡径計測の研究2018

    • Author(s)
      今井せいら、中島康晴、加藤俊司、村井基彦
    • Organizer
      日本船舶海洋工学会平成30年春季講演会
    • Related Report
      2017 Annual Research Report
  • [Presentation] Measurement of Metal Grade of Ore Particles in Slurry Using Lase-Induced Breakdown Spectroscopy2018

    • Author(s)
      Y. Nakajima, J. Yamamoto, T. Takahashi, B. Thornton, G. Dodbiba, T. Fujita
    • Organizer
      OCEANS'18 MTS/ IEEE Kobe /Techno-Ocean 2018
    • Related Report
      2017 Annual Research Report
    • Int'l Joint Research
  • [Presentation] Development of Seafloor Mineral Processing for Seafloor Massive Sulfides2016

    • Author(s)
      Yasuharu NAKAJIMA, Blair THORNTON, Takumi SATO, Gjergj DODBIBA, Toyohisa FUJITA
    • Organizer
      TECHNO-OCEAN 2016
    • Place of Presentation
      神戸コンベンションセンター(兵庫県神戸市)
    • Year and Date
      2016-10-06
    • Related Report
      2016 Annual Research Report
    • Int'l Joint Research

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Published: 2016-04-21   Modified: 2020-03-30  

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