Spectral Analysis of Trace Fluorine Phase in Phosphogypsum
文献类型：期刊论文
| 作者 | Zhao Hong-tao1,2,3; Li Hui-quan1; Bao Wei-jun1; Wang Chen-ye1; Li Song-geng3; Lin Wei-gang3 |
| 刊名 | SPECTROSCOPY AND SPECTRAL ANALYSIS
 |
| 出版日期 | 2015-08-01 |
| 卷号 | 35期号:8页码:2333-2338 |
| 关键词 | Phosphogypsum Fluorine Phase distribution XPS EMPA |
| ISSN号 | 1000-0593 |
| 英文摘要 | Phosphogypsum, which contains more than 90% of the calcium sulfate dihydrate(CaSO4 . 2H(2)O), is a kind of important renewable gypsum resources. Unlike the natural gypsum, however, phosphorus, fluorine, organic matter and other harmful impurities in phosphogypsum limit its practical use. To ascertain the existence form, content and phase distribution of trace fluoride in phosphogypsum has important theoretical values in removing trace fluoride effectively. In this present paper, the main existence form and phase distribution of trace fluoride in phosphogypsum was investigated by the combination of X-ray photoelectron spectroscopy (XPS) and Electron microprobe analysis (EMPA). The results show that trace fluoride phase mainly includes NaF, KF, CaF2, K2SiF6, Na2SiF6, Na3AlF6, K3AlF6, AlF3 . 3H(2)O, AlF2.3 (OH)(0.7) . H2O, Ca-5 (PO4)(3)F, Ca-10 (PO4)(6) F-2 Among them, 4. 83% of fluorine exists in the form of fluoride (NaF, KF, CaF2); Accordingly, 8. 43% in the form of fluoride phosphate(Ca-5 (PO4)(3)F, C-10 (PO4)(6) F-2); 12. 21% in the form of fluorine aluminate(Na3AlF6, K-3 AlF6); 41. 52% in the form of fluorosilicate ( K2SiF6 , Na2SiF6); 33. 02% in the form of aluminum fluoride with crystal water ( AlF3 . 3H(2)O, AlF2.3 (OH) (0.7) . H2O). In the analysis of phase constitution for trace elements in solid samples, the method of combining XPS and EMPA has more advantages. This study also provides theoretical basis for the removal of trace fluorine impurity and the effective recovery of fluorine resources. |
| WOS标题词 | Science & Technology ; Technology |
| 类目[WOS] | Spectroscopy |
| 研究领域[WOS] | Spectroscopy |
| 关键词[WOS] | GAS DESULFURIZATION GYPSUM ; CARBONATION |
| 收录类别 | SCI |
| 语种 | 英语 |
| WOS记录号 | WOS:000359272300053 |
| 源URL | [http://ir.ipe.ac.cn/handle/122111/19444]  |
| 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, Natl Engn Lab Hydromet Cleaner Prod Technol, Inst Proc Engn, Beijing 100190, Peoples R China 2.Univ Chinese Acad Sci, Beijing 100049, Peoples R China 3.Chinese Acad Sci, State Key Lab Multiphase Complex Syst, Inst Proc Engn, Beijing 100190, Peoples R China |
| 推荐引用方式 GB/T 7714 | Zhao Hong-tao,Li Hui-quan,Bao Wei-jun,et al. Spectral Analysis of Trace Fluorine Phase in Phosphogypsum[J]. SPECTROSCOPY AND SPECTRAL ANALYSIS,2015,35(8):2333-2338. |
| APA | Zhao Hong-tao,Li Hui-quan,Bao Wei-jun,Wang Chen-ye,Li Song-geng,&Lin Wei-gang.(2015).Spectral Analysis of Trace Fluorine Phase in Phosphogypsum.SPECTROSCOPY AND SPECTRAL ANALYSIS,35(8),2333-2338. |
| MLA | Zhao Hong-tao,et al."Spectral Analysis of Trace Fluorine Phase in Phosphogypsum".SPECTROSCOPY AND SPECTRAL ANALYSIS 35.8(2015):2333-2338. |
入库方式： OAI收割
来源：过程工程研究所
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