| Removal of iron from ilmenite by KOH leaching-oxalate leaching method | |
| Wang Yuanbo1,2; Qi Tao1; Chu Jinglong1; Zhao Wei1; Qi, T | |
| 2010-02-01 | |
| Source Publication | RARE METALS
 |
| ISSN | 1001-0521 |
| Volume | 29Issue:1Pages:9-15 |
| Abstract | 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. |
| Keyword | Ilmenite Iron Removal Titanium Oxide Oxalate Potassium Hydroxide Koh Leaching |
| Subtype | Article |
| WOS Headings | Science & Technology ; Technology |
| DOI | 10.1007/s12598-010-0002-x |
| Indexed By | SCI |
| Language | 英语 |
| WOS Keyword | OXALIC-ACID ; PANZHIHUA ILMENITE ; SULFURIC-ACID ; DISSOLUTION ; HEMATITE ; OXIDES ; KINETICS |
| WOS Research Area | Materials Science ; Metallurgy & Metallurgical Engineering |
| WOS Subject | Materials Science, Multidisciplinary ; Metallurgy & Metallurgical Engineering |
| WOS ID | WOS:000273685700002 |
| Citation statistics | |
| Document Type | 期刊论文 |
| Version | 出版稿 |
| Identifier | http://ir.ipe.ac.cn/handle/122111/6221 |
| Collection | 湿法冶金清洁生产技术国家工程实验室 |
| Corresponding Author | Qi, T |
| Affiliation | 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 |
| Recommended Citation 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,&Qi, T.(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. |
| Files in This Item: | ||||||
| File Name/Size | DocType | Version | Access | License | ||
| 20131127-1333-复件 s12（1153KB） | 限制开放 | CC BY-NC-SA | Application Full Text | |||
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