Occurrence of the Impurities in Phosphorus Rock and the Research of Acidolysis Process
文献类型：期刊论文
| 作者 | Li Xu1,2; Zhu Gan-yu3,4; Gong Xiao-kang1; Li Shao-peng3,4; Xu Wei1; Li Hui-quan3,4,5 |
| 刊名 | SPECTROSCOPY AND SPECTRAL ANALYSIS
 |
| 出版日期 | 2019-04-01 |
| 卷号 | 39期号:4页码:1288-1293 |
| 关键词 | X-ray photoelectron spectroscopy Impurity Occurrence Phosphorus rock Acidolysis |
| ISSN号 | 1000-0593 |
| DOI | 10.3964/j.issn.1000-0593(2019)04-1288-06 |
| 英文摘要 | In the process of wet-process phosphoric acid, the impurities in the mineral have great effects on the crystallization of calcium sulfate and restrict the utilization of phosphogypsum. Choosing the typical low-grade phosphorus rock in Hubei province of China as the material, the types and contents of main impurities in phosphorus rock and phosphogypsum have been analyzed through X-ray photoelectron spectroscopy, scanning electron microscopy, and EDS. The main changes of the impurities have been evolved in wet-process phosphoric acid. The results show that fluorapatite and quartz are the main phases in phosphorus rock. The highest impurity components are silicon, aluminum, fluorine, and magnesium. Silicon exists in silica and calcium silicate, and fluorine is all in fluorapatite, and aluminum exists in different kinds of aluminosilicate, and most of magnesium exists as MgF2. Calcium reacts with sulfuric acid to form gypsum through acidolysis reaction. Silicon mainly remains in solid phase. Most of aluminum, fluorine, and magnesium decompose into liquid phosphoric acid. Silica still remains in phosphogypsum, and calcium silicate dissolves in acid solution. The compound comprised of aluminum, silicon and phosphorus forms in acidolysis process. Fluorine is mainly in silicofluoride. Most of MgF2 dissolve into solution, and remaining part of Mg in phosphogypsum mainly exists as magnesium silicate. Through the research of occurrence of impurities, the system change may be better acknowledged in the process, and it can provide a basis for the investigation and control of phosphogypsum crystallization. |
| WOS关键词 | CALCIUM-SULFATE DIHYDRATE ; X-RAY PHOTOELECTRON ; SIMULATED CONDITIONS ; CRYSTALLIZATION ; MAGNESIUM |
| WOS研究方向 | Spectroscopy |
| 语种 | 英语 |
| WOS记录号 | WOS:000466450300047 |
| 出版者 | OFFICE SPECTROSCOPY & SPECTRAL ANALYSIS |
| 源URL | [http://ir.ipe.ac.cn/handle/122111/28260]  |
| 专题 | 中国科学院过程工程研究所 |
| 通讯作者 | Li Hui-quan |
| 作者单位 | 1.Yidu Xingfa Chem Co Ltd, Yidu 443311, Peoples R China 2.Hubei Xingfa Chem Grp Co Ltd, Yichang 443007, Peoples R China 3.Chinese Acad Sci, Inst Proc Engn, Key Lab Green Proc & Engn, Beijing 100190, Peoples R China 4.Chinese Acad Sci, Inst Proc Engn, Natl Engn Lab Hydromet Cleaner Prod Technol, Beijing 100190, Peoples R China 5.Univ Chinese Acad Sci, Sch Chem & Chem Engn, Beijing 100049, Peoples R China |
| 推荐引用方式 GB/T 7714 | Li Xu,Zhu Gan-yu,Gong Xiao-kang,et al. Occurrence of the Impurities in Phosphorus Rock and the Research of Acidolysis Process[J]. SPECTROSCOPY AND SPECTRAL ANALYSIS,2019,39(4):1288-1293. |
| APA | Li Xu,Zhu Gan-yu,Gong Xiao-kang,Li Shao-peng,Xu Wei,&Li Hui-quan.(2019).Occurrence of the Impurities in Phosphorus Rock and the Research of Acidolysis Process.SPECTROSCOPY AND SPECTRAL ANALYSIS,39(4),1288-1293. |
| MLA | Li Xu,et al."Occurrence of the Impurities in Phosphorus Rock and the Research of Acidolysis Process".SPECTROSCOPY AND SPECTRAL ANALYSIS 39.4(2019):1288-1293. |
入库方式： OAI收割
来源：过程工程研究所
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