| 研究課題/領域番号 |
19K24378
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| 研究機関 | 北海道大学 |
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研究代表者 |
JEON SANGHEE 北海道大学, 工学研究院, 特任助教 (20847701)
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| 研究期間 (年度) |
2019-08-30 – 2021-03-31
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| キーワード | Gold / Cementation / Ammonium thiosulfate / Aluminum / Activated carbon |
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| 研究実績の概要 |
The main purpose of this research is to newly develop a practical and comprehensive recovery technique in recovering precious metals from pregnant thiosulfate solution, which is non-toxic and low corrosiveness in mineral processing and resources recycling fields. The results will have important industrial implication in mineral processing/resources recycling field where gold is the main industry, and the end of this research, we are expecting to not only develop a new comprehensive technique in gold metallurgy but also advance the understanding of recovery enhancement via this novel recovery technique, hence it is able to change the paradigm of the current precious metals-metallurgy.
The results in FY2019 was as follows:
a. Identification of the possibility of this novel recovery technique- published 1 paper at Q1 international journal with 1 international presentation
b. Identification of the optimum recovery conditions and mechanism(s) via batch-experiments and electrochemical experiments, respectively.-now submitting 1 paper at Q1 international journal with 1 international presentation
c. Evaluation of gold recovery from very dilute solutions (e.g., seawater) as well as the removal of toxic/hazardous elements from wastewater.-now submitting 1 paper at Q1 international journal with 1 international presentation
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| 現在までの達成度 (区分) |
現在までの達成度 (区分)
1: 当初の計画以上に進展している
理由
The present project is progressing more smoothly than initially planned since preliminary experiments as well as theoretical mechanisms(s) were well established before applying the KAKENHI.
For that, now one paper was published in FY2019 at Q1 international journal, which identified the possibility of this novel recovery technique, and in FY2020, 2 more papers will be submitted in this year also at Q1 international journal: One is for identification of the optimum recovery conditions and mechanisms, and the other is for application in waste water treatment which is recovery of heavy metals from acid solutions.
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| 今後の研究の推進方策 |
In FY2019, the author was focused on the model experiments to identify the optimum recovery conditions as well as mechanism(s). In FY2020, the author tried to widen the scope of the field to apply in real mineral processing/resources recycling filed using gold ore as well as E-waste.
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| 次年度使用額が生じた理由 |
The plans for using the funds in FY2020 include:
(1)Real ore: To identify whether this novel recover technique is able to be applied in real mineral processing/resource recycling field, recovery of gold from first resources will be carried out.
(2)Collaborative research: Now, collaborative research between Hokkaido University, Curtin University and The University of New South Wales Sydney, Australia is progressing. In this regard, funds will be used to ensure a smooth collaborative research.
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