• Search Research Projects
  • Search Researchers
  • How to Use
  1. Back to previous page

Development of Chalcopyrite leaching process using organic aqua regius

Research Project

Project/Area Number 19H02488
Research Category

Grant-in-Aid for Scientific Research (B)

Allocation TypeSingle-year Grants
Section一般
Review Section Basic Section 26060:Metals production and resources production-related
Research InstitutionChiba University

Principal Investigator

Matsuno Yasunari  千葉大学, 大学院工学研究院, 教授 (50358032)

Project Period (FY) 2019-04-01 – 2022-03-31
Project Status Completed (Fiscal Year 2022)
Budget Amount *help
¥12,220,000 (Direct Cost: ¥9,400,000、Indirect Cost: ¥2,820,000)
Fiscal Year 2021: ¥3,900,000 (Direct Cost: ¥3,000,000、Indirect Cost: ¥900,000)
Fiscal Year 2020: ¥4,160,000 (Direct Cost: ¥3,200,000、Indirect Cost: ¥960,000)
Fiscal Year 2019: ¥4,160,000 (Direct Cost: ¥3,200,000、Indirect Cost: ¥960,000)
Keywords有機王水 / 湿式製錬 / 黄銅鉱 / ミックスサルファイド / 二相分離 / LCA / 浸出 / 回収 / ジメチルスルフォキシド / 塩化銅 / パイライト / 持続可能性 / 湿式精錬 / 環境調和
Outline of Research at the Start

本研究は、半世紀にわたり課題となっている、湿式法による黄銅鉱(CuFeS2)からの銅の精錬を、提案者が開発した有機王水を用いる精錬プロセスを開発することで達成することを目的にする。具体的には以下を解明する。
1) 有機王水中において不働態が形成されることなく黄銅鉱が溶解するメカニズム、2) 有機王水を用いた黄銅鉱の湿式法精錬プロセスの最適操作条件、3) 既存プロセスに対する環境性と経済性の比較、4) 他の鉱石への適用可能性。
本プロセスが実用化されれば、将来の銅産業の持続可能的発展に大きく貢献できると確信し、本研究の成果は世界に先駆けた提案となる。

Outline of Final Research Achievements

This study aimed to develop a hydrometallurgical process for copper from chalcopyrite (CuFeS2) using organic aqua regia. In the leaching of chalcopyrite with organic aqua regia, it was shown that the chalcopyrite was dissolved without the formation of passive layer, and the optimum operating conditions were investigated. Among the elements associated with chalcopyrite (copper concentrate), precious metals such as Au are dissolved, but the penalty element, As, and pyrite (FeS2) which has a low economic value, remain as residues.
Furthermore, by applying organic aqua regia to Ni/Co mixed sulfides, it was found that the leaching rate could be greatly increased compared to the conventional aqueous solution system, and Ni from the leaching solution could be separated from Cu by solvent extraction.

Academic Significance and Societal Importance of the Research Achievements

本研究は、半世紀にわたり課題となっている、湿式法による黄銅鉱(CuFeS2)からの銅の精錬を、提案者が開発した有機王水を用いる精錬プロセスを適用することで達成することを目的とした。ジメチルスルフォキシド系有機王水を用いた浸出においては、不働態が形成されることなく黄銅鉱が溶解することを発見するとともに、沸点が高い故に常圧において高温を用いれることができるゆえ、浸出速度を格段に速めることができることを見出した。ニッケル・コバルト混合硫化物に関しても、既存の水溶液系での浸出速度よりも大幅に増大できることを示したことは、本分野において大きな成果である。

Report

(4 results)
  • 2022 Final Research Report ( PDF )
  • 2021 Annual Research Report
  • 2020 Annual Research Report
  • 2019 Annual Research Report
  • Research Products

    (10 results)

All 2022 2021 2020 2019 Other

All Int'l Joint Research (1 results) Journal Article (2 results) (of which Peer Reviewed: 2 results,  Open Access: 1 results) Presentation (4 results) (of which Int'l Joint Research: 3 results) Remarks (1 results) Patent(Industrial Property Rights) (2 results)

  • [Int'l Joint Research] University of British Columbia(カナダ)

    • Related Report
      2021 Annual Research Report
  • [Journal Article] Leaching of Nickel and Cobalt Mixed Sulfide Using Organic Aqua Regia and Recovery by Solvent Extraction2022

    • Author(s)
      宇田和樹、吉村彰大、松野泰也、浅野聡
    • Journal Title

      Journal of the Japan Institute of Metals and Materials

      Volume: 86 Issue: 8 Pages: 149-155

    • DOI

      10.2320/jinstmet.J2021051

    • ISSN
      0021-4876, 1880-6880, 2433-7501
    • Year and Date
      2022-08-01
    • Related Report
      2021 Annual Research Report
    • Peer Reviewed
  • [Journal Article] Chalcopyrite leaching in a dimethyl sulfoxide solution containing copper chloride2021

    • Author(s)
      Kota Takatori, Hidekazu Kato, Akihiro Yoshimura and Yasunari Matsuno
    • Journal Title

      Mining, Metallurgy & Exploration

      Volume: 38 Issue: 3 Pages: 1477-1485

    • DOI

      10.1007/s42461-021-00400-3

    • Related Report
      2020 Annual Research Report
    • Peer Reviewed / Open Access
  • [Presentation] A novel hydrometallurgical method for chalcopyrite treatment using organic aqua regia2022

    • Author(s)
      Akihiro Yoshimura, Shunya Fujisaki, Yasunari Matsuno
    • Organizer
      COPPER2022
    • Related Report
      2021 Annual Research Report
    • Int'l Joint Research
  • [Presentation] Chalcopyrite leaching in organic aqua regius and recovery of copper by solvent extraction2021

    • Author(s)
      Shunya Fujisaki, Akihiro Yoshimura, Yasunari Matsuno
    • Organizer
      Going Green Ecodesign 2021
    • Related Report
      2021 Annual Research Report
    • Int'l Joint Research
  • [Presentation] Chalcopyrite leaching in organic aqua regius and recovery of copper by solvent extraction2021

    • Author(s)
      Shunya Fujisaki, Akihiro Yoshimura, Yasunari Matsuno
    • Organizer
      Going Green EcoDesign 2021
    • Related Report
      2020 Annual Research Report
    • Int'l Joint Research
  • [Presentation] 有機王水を用いた黄銅鉱 (CuFeS2) 浸出プロセスの開発2020

    • Author(s)
      鷹取孝太、加藤秀和、吉村彰大、松野泰也
    • Organizer
      化学工学会第85年会
    • Related Report
      2019 Annual Research Report
  • [Remarks] 有機王水を用いた湿式製錬システムの開発

    • URL

      https://chem.tf.chiba-u.jp/gacb19/research.html

    • Related Report
      2020 Annual Research Report
  • [Patent(Industrial Property Rights)] ニッケル及び/又はコバルトの回収方法2021

    • Inventor(s)
      松野泰也、吉村彰大、浅野聡
    • Industrial Property Rights Holder
      松野泰也、吉村彰大、浅野聡
    • Industrial Property Rights Type
      特許
    • Filing Date
      2021
    • Related Report
      2020 Annual Research Report
  • [Patent(Industrial Property Rights)] 黄銅鉱からの銅の回収方法及びその回収方法に用いる溶媒系2019

    • Inventor(s)
      松野泰也、加藤秀和
    • Industrial Property Rights Holder
      松野泰也、加藤秀和
    • Industrial Property Rights Type
      特許
    • Filing Date
      2019
    • Acquisition Date
      2022
    • Related Report
      2021 Annual Research Report

URL: 

Published: 2019-04-18   Modified: 2024-01-30  

Information User Guide FAQ News Terms of Use Attribution of KAKENHI

Powered by NII kakenhi