Preparation of Ti-enriched slag from V-bearing titanomagnetite by two-stage hydrochloric acid leaching route
文献类型：期刊论文
| 作者 | Zhong, Binnian1,2; Xue, Tianyan1; Zhao, Longsheng1; Zhao, Hongxin1; Qi, Tao1; Chen, Weiliang2 |
| 刊名 | SEPARATION AND PURIFICATION TECHNOLOGY
 |
| 出版日期 | 2014-11-24 |
| 卷号 | 137期号:NOV.页码:59-65 |
| 关键词 | V-Ti concentrate Hydrochloric acid leaching Molecular simulation Impurity separation Ti-enriched slag |
| ISSN号 | 1383-5866 |
| 其他题名 | Sep. Purif. Technol. |
| 中文摘要 | Low-grade, highly reactive V-Ti concentrate was obtained from V-bearing titanomagnetite via selective reduction-magnetic separation. The main phases of the concentrate are anosovite and pyroxene. Two-stage acid leaching was employed to remove the impurities in the concentrate. The leaching behavior of impurities Ca/Mg/Al/Si under different acid leaching conditions in the first stage was investigated in detail. The optimal leaching conditions of the first-stage were as follows: 383 K leaching temperature, 1.40 mol/L HCl concentration, 1/10 solid-liquid mass ratio, and 120 min leaching time, under which the residue obtained contained 79.54% of TiO2 and 2.50% of V2O5. The result of molecular structure simulation indicate that the Ti-O and Mg-O bonds in the anosovite phase are broken under oxygen pressure conditions in the second stage by reacted with HCl solution. The content of TiO2 in the Ti-enriched slag prepared by two-stage acid leaching can reach 92.5% with further removal of residual carbon. (C) 2014 Elsevier B.V. All rights reserved. |
| 英文摘要 | Low-grade, highly reactive V-Ti concentrate was obtained from V-bearing titanomagnetite via selective reduction-magnetic separation. The main phases of the concentrate are anosovite and pyroxene. Two-stage acid leaching was employed to remove the impurities in the concentrate. The leaching behavior of impurities Ca/Mg/Al/Si under different acid leaching conditions in the first stage was investigated in detail. The optimal leaching conditions of the first-stage were as follows: 383 K leaching temperature, 1.40 mol/L HCl concentration, 1/10 solid-liquid mass ratio, and 120 min leaching time, under which the residue obtained contained 79.54% of TiO2 and 2.50% of V2O5. The result of molecular structure simulation indicate that the Ti-O and Mg-O bonds in the anosovite phase are broken under oxygen pressure conditions in the second stage by reacted with HCl solution. The content of TiO2 in the Ti-enriched slag prepared by two-stage acid leaching can reach 92.5% with further removal of residual carbon. (C) 2014 Elsevier B.V. All rights reserved. |
| WOS标题词 | Science & Technology ; Technology |
| 类目[WOS] | Engineering, Chemical |
| 研究领域[WOS] | Engineering |
| 关键词[WOS] | TITANIUM-DIOXIDE ; ILMENITE |
| 收录类别 | SCI |
| 原文出处 | |
| 语种 | 英语 |
| WOS记录号 | WOS:000345181500008 |
| 公开日期 | 2015-04-01 |
| 源URL | [http://ir.ipe.ac.cn/handle/122111/11905]  |
| 专题 | 过程工程研究所_研究所（批量导入） |
| 作者单位 | 1.Chinese Acad Sci, Inst Proc Engn, Key Lab Green Proc & Engn, Beijing 100190, Peoples R China 2.Kunming Univ Sci & Technol, Fac Met & Energy Engn, Natl Engn Lab Vacuum Met, Kunming 650093, Peoples R China |
| 推荐引用方式 GB/T 7714 | Zhong, Binnian,Xue, Tianyan,Zhao, Longsheng,et al. Preparation of Ti-enriched slag from V-bearing titanomagnetite by two-stage hydrochloric acid leaching route[J]. SEPARATION AND PURIFICATION TECHNOLOGY,2014,137(NOV.):59-65. |
| APA | Zhong, Binnian,Xue, Tianyan,Zhao, Longsheng,Zhao, Hongxin,Qi, Tao,&Chen, Weiliang.(2014).Preparation of Ti-enriched slag from V-bearing titanomagnetite by two-stage hydrochloric acid leaching route.SEPARATION AND PURIFICATION TECHNOLOGY,137(NOV.),59-65. |
| MLA | Zhong, Binnian,et al."Preparation of Ti-enriched slag from V-bearing titanomagnetite by two-stage hydrochloric acid leaching route".SEPARATION AND PURIFICATION TECHNOLOGY 137.NOV.(2014):59-65. |
入库方式： OAI收割
来源：过程工程研究所
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