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| 尼日利亚钛铁矿的矿物学特征和浸出行为 | |
| 引用本文： | A. A. BABA,S. SWAROOPA,M. K. GHOSH,F. A. ADEKOLA. 尼日利亚钛铁矿的矿物学特征和浸出行为[J]. 中国有色金属学会会刊, 2013, 23(9): 2743-2750. DOI: 10.1016/S1003-6326(13)62792-2 |
| 作者姓名： | A. A. BABA S. SWAROOPA M. K. GHOSH F. A. ADEKOLA |
| 作者单位： | [1]Department of Chemistry, University ofllorin, P. M. B. 1515, Ilorin 240003, Nigeria [2]Hydro ＆ Electrometallurgy Department, CSIR-Institute of Minerals and Materials Technology, Bhubaneswar 751013, India |
| 摘 要： | 研究尼日利亚钛铁矿矿物学特征和经机械活化和碱性焙烧处理后的浸出行为。研究了 NaOH/矿石比、H2SO4浓度、浸出和焙烧温度对钛回收率的影响。结果表明，机械活化对钛铁矿石的浸出有明显的增强作用。钛铁矿经机械活化后，加入60%NaOH在850°C下焙烧，在温度为90°C,经60%H2SO4浸出4 h下的浸出率为72%。对焙烧矿、水处理后残渣和酸浸滤渣的XRD物相分析证实了反应机理和实验结果。 |
| 关 键 词： | 钛铁矿 浸出 机械活化 焙烧 钛 |
| 收稿时间： | 2012-10-31 |
Mineralogical characterization and leaching behavior of Nigerian ilmenite ore |
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| A. A. BABA , S. SWAROOPA , M. K. GHOSH , F. A. ADEKOLA. Mineralogical characterization and leaching behavior of Nigerian ilmenite ore[J]. Transactions of Nonferrous Metals Society of China, 2013, 23(9): 2743-2750. DOI: 10.1016/S1003-6326(13)62792-2 | |
| Authors: | A. A. BABA S. SWAROOPA M. K. GHOSH F. A. ADEKOLA |
| Affiliation: | 1. Department of Chemistry, University of Ilorin, P. M. B. 1515, Ilorin 240003, Nigeria; Hydro&Electrometallurgy Department, CSIR-Institute of Minerals and Materials Technology, Bhubaneswar 751013, India 2. Hydro&Electrometallurgy Department, CSIR-Institute of Minerals and Materials Technology, Bhubaneswar 751013, India; CSIR-Central Road Research Institute, New Delhi 110025, India 3. Hydro&Electrometallurgy Department, CSIR-Institute of Minerals and Materials Technology, Bhubaneswar 751013, India 4. Department of Chemistry, University of Ilorin, P. M. B. 1515, Ilorin 240003, Nigeria |
| Abstract: | The characterization and H2SO4 leaching behavior of a Nigerian ilmenite ore following mechanical activation and alkali roasting were investigated. The effects of NaOH/ore ratio, H2SO4 concentration, leaching and roasting temperature on the Ti recovery from the milled ore were examined. The results show that mechanical activation significantly enhances the dissolution of ilmenite ore. Under the leaching conditions of 90 °C, 60% （v/v） H2SO4 and 4 h, about 72% Ti extraction was obtained from a milled ore roasted at 850 °C with 60% NaOH. X-ray diffraction （XRD） phase analysis of the roasted mass, water treated residue and leach residue supports the reaction mechanism and experimental results. |
| Keywords: | ilmenite leaching mechanical activation roasting titanium |
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