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Fundamental study on high-temperature chlorination reaction for the development of a novel process for recycling cemented carbide scrap

Research Project

Project/Area Number 15K14190
Research Category

Grant-in-Aid for Challenging Exploratory Research

Allocation TypeMulti-year Fund
Research Field Metal making/Resorce production engineering
Research InstitutionThe University of Tokyo

Principal Investigator

Taninouchi Yu-ki  東京大学, 生産技術研究所, 助教 (40644521)

Project Period (FY) 2015-04-01 – 2017-03-31
Project Status Completed (Fiscal Year 2016)
Budget Amount *help
¥3,900,000 (Direct Cost: ¥3,000,000、Indirect Cost: ¥900,000)
Fiscal Year 2016: ¥1,950,000 (Direct Cost: ¥1,500,000、Indirect Cost: ¥450,000)
Fiscal Year 2015: ¥1,950,000 (Direct Cost: ¥1,500,000、Indirect Cost: ¥450,000)
Keywordsタングステン / コバルト / 塩化反応 / 超硬工具 / リサイクル
Outline of Final Research Achievements

Thermodynamic analyses and fundamental experiments were performed to investigate suitable reaction conditions for the separation of tungsten from cemented carbide scrap as chloride and/or oxychloride vapors. It was found that tungsten in grinding sludge and its roasted product could be volatilized as chlorides and/or oxychlorides by reacting with chlorine gas or metal chlorides, such as iron trichloride, under a suitable oxygen partial pressure at around 900 K. High-temperature chlorination reaction has the potential to be utilized in the development of a novel recycling process with small environmental burden and high refining capacity.

Report

(3 results)
  • 2016 Annual Research Report   Final Research Report ( PDF )
  • 2015 Research-status Report
  • Research Products

    (1 results)

All 2015

All Presentation (1 results)

  • [Presentation] 化学ポテンシャル図を利用したレアメタルのリサイクルプロセス開発2015

    • Author(s)
      谷ノ内 勇樹
    • Organizer
      平成27年度資源・素材関係学協会合同秋季大会
    • Place of Presentation
      愛媛大学(松山市)
    • Year and Date
      2015-09-08
    • Related Report
      2015 Research-status Report

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Published: 2015-04-16   Modified: 2018-03-22  

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