Activation pretreatment of limonitic laterite ores by alkali-roasting using NaOH
文献类型：期刊论文
| 作者 | Guo, Qiang1,2,3; Qu, Jing-kui1,2; Qi, Tao1,2; Wei, Guang-ye1,2,4; Han, Bing-bing1,2 |
| 刊名 | INTERNATIONAL JOURNAL OF MINERALS METALLURGY AND MATERIALS
 |
| 出版日期 | 2012-02-01 |
| 卷号 | 19期号:2页码:100-105 |
| 关键词 | laterite ores sodium hydroxide roasting activation pretreatment pressure acid leaching |
| ISSN号 | 1674-4799 |
| 通讯作者 | Qi, T |
| 英文摘要 | Activation pretreatment of Cr-containing limonitic laterite ores by NaOH roasting to remove Cr, Al, and Si, as well as its effect on Ni and Co extraction in the subsequent pressure acid leaching process was investigated. Characterization results of X-ray diffraction (XRD) and scanning electron microscopy/X-ray energy dispersive spectroscopy (SEM/XEDS) show that goethite is the major Ni-bearing mineral, and chromite is the minor one. Experimental results show that the leaching rates of Cr, Al, and Si are 95.6wt%, 83.8wt%, and 40.1wt%, respectively, under the optimal alkali-roasting conditions. Compared with the direct pressure acid leaching of laterite ores, the leaching rates of Ni and Co increase from 80.1wt% to 96.9wt% and 70.2wt% to 95.1wt% after pretreatment, respectively. Meanwhile, the grade of acid leaching iron residues increases from 54.4wt% to 62.5wt%, and these residues with low Cr content are more suitable raw materials for iron making. |
| WOS标题词 | Science & Technology ; Technology ; Physical Sciences |
| 类目[WOS] | Materials Science, Multidisciplinary ; Metallurgy & Metallurgical Engineering ; Mining & Mineral Processing |
| 研究领域[WOS] | Materials Science ; Metallurgy & Metallurgical Engineering ; Mining & Mineral Processing |
| 关键词[WOS] | NICKELIFEROUS LATERITES ; NICKEL LATERITES ; SULFURIC-ACID ; PART I ; PRESSURE ; KINETICS ; RESIDUE |
| 收录类别 | SCI |
| 语种 | 英语 |
| WOS记录号 | WOS:000299419100002 |
| 公开日期 | 2013-10-28 |
| 版本 | 出版稿 |
| 源URL | [http://ir.ipe.ac.cn/handle/122111/4319]  |
| 专题 | 过程工程研究所_湿法冶金清洁生产技术国家工程实验室 |
| 作者单位 | 1.Natl Engn Lab Hydromet Cleaner Prod Technol, Beijing 100190, Peoples R China 2.Chinese Acad Sci, Inst Proc Engn, Key Lab Green Proc & Engn, Beijing 100190, Peoples R China 3.Chinese Acad Sci, Grad Sch, Beijing 100190, Peoples R China 4.Univ Sci & Technol Beijing, Sch Mat Sci & Engn, Beijing 100083, Peoples R China |
| 推荐引用方式 GB/T 7714 | Guo, Qiang,Qu, Jing-kui,Qi, Tao,et al. Activation pretreatment of limonitic laterite ores by alkali-roasting using NaOH[J]. INTERNATIONAL JOURNAL OF MINERALS METALLURGY AND MATERIALS,2012,19(2):100-105. |
| APA | Guo, Qiang,Qu, Jing-kui,Qi, Tao,Wei, Guang-ye,&Han, Bing-bing.(2012).Activation pretreatment of limonitic laterite ores by alkali-roasting using NaOH.INTERNATIONAL JOURNAL OF MINERALS METALLURGY AND MATERIALS,19(2),100-105. |
| MLA | Guo, Qiang,et al."Activation pretreatment of limonitic laterite ores by alkali-roasting using NaOH".INTERNATIONAL JOURNAL OF MINERALS METALLURGY AND MATERIALS 19.2(2012):100-105. |
入库方式： OAI收割
来源：过程工程研究所
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