Fundamental study on engulfment of particles into cathode and formation of nodules in copper electrorefining
| Project/Area Number |
26420757
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| Research Category |
Grant-in-Aid for Scientific Research (C)
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| Allocation Type | Multi-year Fund |
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| Section | 一般 |
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| Research Field |
Metal making/Resorce production engineering
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| Research Institution | Kyushu Institute of Technology |
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Principal Investigator |
Takasu Tomio 九州工業大学, 大学院工学研究院, 准教授 (20264129)
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| Co-Investigator(Kenkyū-buntansha) |
伊藤 秀行 九州工業大学, 大学院工学研究院, 助教 (90213074)
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| Project Period (FY) |
2014-04-01 – 2017-03-31
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| Project Status |
Completed (Fiscal Year 2016)
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| Budget Amount *help |
¥5,070,000 (Direct Cost: ¥3,900,000、Indirect Cost: ¥1,170,000)
Fiscal Year 2016: ¥260,000 (Direct Cost: ¥200,000、Indirect Cost: ¥60,000)
Fiscal Year 2015: ¥3,770,000 (Direct Cost: ¥2,900,000、Indirect Cost: ¥870,000)
Fiscal Year 2014: ¥1,040,000 (Direct Cost: ¥800,000、Indirect Cost: ¥240,000)
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| Keywords | 金属生産工学 / 素材精製 / 電解精製 / モデル化 / 銅製錬 / スライム / 析出形態 / 電解液流動 |
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| Outline of Final Research Achievements |
The experimental apparatuses and conditions developed in this research were confirmed to reproduce the engulfment of particles into cathode. The nodules were clearly formed on the large agglomerated particles. Increasing the fluid intensity decreased the size of crystalline grains of copper and improved the flatness of deposition surface. It was made clear that, compared to the Al2O3 particles, the Ag particles were easier to be engulfed and the agglomerate was easier to become origin of radial growth of copper crystals, leading to the nodule. It was shown that higher intensity of flow is effective to suppress the engulfment of the agglomerates.
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Report
(4 results)
Research Products
(2 results)
