Removal of iron from ilmenite by KOH leaching-oxalate leaching method
文献类型：期刊论文
| 作者 | Wang Yuanbo1,2; Qi Tao1; Chu Jinglong1; Zhao Wei1 |
| 刊名 | RARE METALS
 |
| 出版日期 | 2010-02-01 |
| 卷号 | 29期号:1页码:9-15 |
| 关键词 | ilmenite iron removal titanium oxide oxalate potassium hydroxide KOH leaching |
| ISSN号 | 1001-0521 |
| 通讯作者 | Qi, T |
| 英文摘要 | Oxalic acid was used for the removal of iron from the intermediates of ilmenite leached by KOH liquor. Various parameters, such as pH, temperature, initial oxalate concentration, and illumination were investigated. Meanwhile, it was found that orthorhombic crystal Ti(2)O(2)(OH)(2)(C(2)O(4))center dot H(2)O formed as the leaching proceeded. Scanning electronic microscope (SEM) images implied that the formation of Ti(2)O(2)(OH)(2)(C(2)O(4))center dot H(2)O with good crystallinity proceeded through three stages. Calcining Ti(2)O(2)(OH)(2)(C(2)O(4))center dot H(2)O, anatase (350 degrees C) or rutile (550 degrees C) type TiO(2) was obtained, respectively. Element analysis found that the calcined product contained 94.9% TiO(2) and 2.5% iron oxide, but only about 1600 ppm dissolvable iron oxide was left, which indicates that oxalic acid was comparatively effective on iron oxide removal from the intermediates. Finally, an improved route was proposed for the upgrading of ilmenite into rutile. |
| WOS标题词 | Science & Technology ; Technology |
| 类目[WOS] | Materials Science, Multidisciplinary ; Metallurgy & Metallurgical Engineering |
| 研究领域[WOS] | Materials Science ; Metallurgy & Metallurgical Engineering |
| 关键词[WOS] | OXALIC-ACID ; PANZHIHUA ILMENITE ; SULFURIC-ACID ; DISSOLUTION ; HEMATITE ; OXIDES ; KINETICS |
| 收录类别 | SCI |
| 语种 | 英语 |
| WOS记录号 | WOS:000273685700002 |
| 公开日期 | 2013-11-27 |
| 版本 | 出版稿 |
| 源URL | [http://ir.ipe.ac.cn/handle/122111/6221]  |
| 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.Chinese Acad Sci, Key Lab Green Proc & Engn, Inst Proc Engn, Beijing 100080, Peoples R China 2.Chinese Acad Sci, Grad Sch, Beijing 100039, Peoples R China |
| 推荐引用方式 GB/T 7714 | Wang Yuanbo,Qi Tao,Chu Jinglong,et al. Removal of iron from ilmenite by KOH leaching-oxalate leaching method[J]. RARE METALS,2010,29(1):9-15. |
| APA | Wang Yuanbo,Qi Tao,Chu Jinglong,&Zhao Wei.(2010).Removal of iron from ilmenite by KOH leaching-oxalate leaching method.RARE METALS,29(1),9-15. |
| MLA | Wang Yuanbo,et al."Removal of iron from ilmenite by KOH leaching-oxalate leaching method".RARE METALS 29.1(2010):9-15. |
入库方式： OAI收割
来源：过程工程研究所
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