Oxidation Reaction of Copper Concentrate with Low Grade and Phase Separation Process of Slag/matte Melts
| Project/Area Number |
15H04167
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| Research Category |
Grant-in-Aid for Scientific Research (B)
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| Allocation Type | Single-year Grants |
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| Section | 一般 |
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| Research Field |
Metal making/Resorce production engineering
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| Research Institution | Ehime University |
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Principal Investigator |
Takebe Hiromichi 愛媛大学, 理工学研究科(工学系), 教授 (90236498)
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| Co-Investigator(Kenkyū-buntansha) |
斎藤 全 愛媛大学, 理工学研究科(工学系), 准教授 (80431328)
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| Project Period (FY) |
2015-04-01 – 2018-03-31
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| Project Status |
Completed (Fiscal Year 2017)
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| Budget Amount *help |
¥16,510,000 (Direct Cost: ¥12,700,000、Indirect Cost: ¥3,810,000)
Fiscal Year 2017: ¥3,250,000 (Direct Cost: ¥2,500,000、Indirect Cost: ¥750,000)
Fiscal Year 2016: ¥4,160,000 (Direct Cost: ¥3,200,000、Indirect Cost: ¥960,000)
Fiscal Year 2015: ¥9,100,000 (Direct Cost: ¥7,000,000、Indirect Cost: ¥2,100,000)
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| Keywords | 製錬工学 / 銅乾式製錬 / 高温融体 / 相分離 / その場観察 / 微細構造 / 粘度 / 耐火物 / 状態図 / 融体物性 |
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| Outline of Final Research Achievements |
The hot-thermocouple method was applied for evaluations of the oxidation reaction of copper concentrate with silica sand and the phase separation of sulfide matte/oxide slag melts. The processes were monitored by a CCD camera through a microscope recorded by a personal computer. The quenched samples were analyzed by scanning electron microscopy. Copper slag granules cooled in air consisted of magnetite and fayalite phases with As and Pb elements concentrated in the residual SiO2-rich aluminosilicate non-crystalline matrix with a satisfaction of JIS K 0058-2 for the elution amounts of Pb and As in 1mol/L HCl aqueous solution. Viscosity of copper slag and synthesized FeO-SiO2 slag melts were measured by rotating cylinder method. Interfacial reactions of re-bonded magnesia-chrome refractory with FeO-SiO2 slag melt was studied under controlled oxygen partial pressure of atmosphere by the prediction of thermodynamically-stable phases and high-temperature reaction tests.
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Report
(4 results)
Research Products
(25 results)
