Discovery of impurities existing state in carbide slag by chemical dissociation
文献类型：期刊论文
| 作者 | Yang, Hang2; Cao, Jianwei1; Wang, Zhi1; Chen, Huahui2; Gong, Xuzhong1 |
| 刊名 | INTERNATIONAL JOURNAL OF MINERAL PROCESSING
 |
| 出版日期 | 2014-07-10 |
| 卷号 | 130期号:JUL页码:66-73 |
| 关键词 | Carbide slag Chemical dissociation Thermodynamics Eh-pH Impurities existing state |
| ISSN号 | 0301-7516 |
| 其他题名 | Int. J. Miner. Process. |
| 中文摘要 | The existing states of impurities in carbide slag were investigated which can be a good guide for impurity removal by physical methods. The calcium phase and the impurities wrap each other made it hard to research impurities. Therefore an acid chemical dissociation method was firstly proposed via plotting Eh-pH-diagram of the Ca(OH)(2), CaCO3, MgSiO3, Al2SiO5, Fe3O4 and H+ system. The optimum dissociation condition (pH = 4.0) was deduced from Eh-pH-diagram and verified by X-ray diffraction, X-ray fluorescence spectrum and morphology analysis. Morphological and elemental chemical analyses of the dissociated residues revealed the existence of Si in the form of SiO2. Fe and C existed as isolated particles of Fe3O4 and carbon respectively. Al and Mg were existed in the form of silicates such as Al2SiO5 and MgSiO3. Si, Al and Mg always appeared together in the carbide slag, providing a possibility for their integral removal. (C) 2014 The Authors. Published by Elsevier B.V. This is an open access article under the CC BY-NC-ND license (http://creativecommons.org/licenses/by-nc-nd/3.0/). |
| 英文摘要 | The existing states of impurities in carbide slag were investigated which can be a good guide for impurity removal by physical methods. The calcium phase and the impurities wrap each other made it hard to research impurities. Therefore an acid chemical dissociation method was firstly proposed via plotting Eh-pH-diagram of the Ca(OH)(2), CaCO3, MgSiO3, Al2SiO5, Fe3O4 and H+ system. The optimum dissociation condition (pH = 4.0) was deduced from Eh-pH-diagram and verified by X-ray diffraction, X-ray fluorescence spectrum and morphology analysis. Morphological and elemental chemical analyses of the dissociated residues revealed the existence of Si in the form of SiO2. Fe and C existed as isolated particles of Fe3O4 and carbon respectively. Al and Mg were existed in the form of silicates such as Al2SiO5 and MgSiO3. Si, Al and Mg always appeared together in the carbide slag, providing a possibility for their integral removal. (C) 2014 The Authors. Published by Elsevier B.V. This is an open access article under the CC BY-NC-ND license (http://creativecommons.org/licenses/by-nc-nd/3.0/). |
| WOS标题词 | Science & Technology ; Technology ; Physical Sciences |
| 类目[WOS] | Engineering, Chemical ; Mineralogy ; Mining & Mineral Processing |
| 研究领域[WOS] | Engineering ; Mineralogy ; Mining & Mineral Processing |
| 关键词[WOS] | CALCIUM |
| 收录类别 | SCI |
| 原文出处 | |
| 语种 | 英语 |
| WOS记录号 | WOS:000340311100009 |
| 公开日期 | 2014-09-30 |
| 版本 | 出版稿 |
| 源URL | [http://ir.ipe.ac.cn/handle/122111/11583]  |
| 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, Natl Engn Lab Hydromet Cleaner Prod Technol, Beijing 100190, Peoples R China 2.China Univ Min & Technol Beijing, Sch Mech & Elect Engn, Beijing 100083, Peoples R China |
| 推荐引用方式 GB/T 7714 | Yang, Hang,Cao, Jianwei,Wang, Zhi,et al. Discovery of impurities existing state in carbide slag by chemical dissociation[J]. INTERNATIONAL JOURNAL OF MINERAL PROCESSING,2014,130(JUL):66-73. |
| APA | Yang, Hang,Cao, Jianwei,Wang, Zhi,Chen, Huahui,&Gong, Xuzhong.(2014).Discovery of impurities existing state in carbide slag by chemical dissociation.INTERNATIONAL JOURNAL OF MINERAL PROCESSING,130(JUL),66-73. |
| MLA | Yang, Hang,et al."Discovery of impurities existing state in carbide slag by chemical dissociation".INTERNATIONAL JOURNAL OF MINERAL PROCESSING 130.JUL(2014):66-73. |
入库方式： OAI收割
来源：过程工程研究所
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