A Novel Approach for Separation and Recovery of Titanium, Scandium, Iron from Acidic Wastewater and Red Gypsum Utilization
文献类型：期刊论文
| 作者 | Ju, Jinrong1,2,3; Feng, Yali1; Li, Haoran2,3; Wang, Ben1,2,3 |
| 刊名 | MINING METALLURGY & EXPLORATION
 |
| 出版日期 | 2022-04-21 |
| 页码 | 16 |
| ISSN号 | 2524-3462 |
| 关键词 | Acidic wastewater Red gypsum Phosphoric acid precipitation Solvent extraction Ammonium jarosite |
| DOI | 10.1007/s42461-022-00600-5 |
| 英文摘要 | At present, acidic wastewater is directly neutralized with lime or limestone, which wastes resources such as titanium, scandium, and iron and generates a great deal of solid waste. This study proposes a novel approach for the separation and recovery of titanium, scandium, and iron from acidic wastewater and red gypsum utilization. The recovery efficiency of titanium in acidic wastewater was 97.59% under the molar ratio of titanium dioxide to phosphoric acid of 1:2.2, the reaction temperature of 85 degrees C, and the reaction time of 45 min. The scandium in the filtrate after the recovery of titanium can be finely extracted with P507, and 99.79% scandium can be extracted by single-stage extraction under the P507 concentration of 15%, the phase ratio (O/A) of 1:13, and extraction time of 6 min. In addition, the process of extracting scandium with P507 is an exothermic reaction by thermodynamic analysis. The raffinate after extracting scandium can be used for leaching red gypsum. As a result, calcium sulfate with a purity of 98.34% and whiteness of 94.27% was obtained under the leaching temperature of 60celcius, the leaching time of 30 min, and the ratio of raffinate volume to red gypsum mass (L/S) of 3.5:1. Subsequently, the 97.64% iron in the leaching solution was recovered by the ammonium jarosite precipitation process, and ammonium sulfate with a purity of 99.65% can be obtained. The process can competently be applied to recover titanium, scandium, and iron in acidic wastewater and resource treatment of red gypsum. |
| WOS关键词 | SOLVENT-EXTRACTION ; SULFURIC-ACID ; PRECIPITATION ; PHOSPHATE ; JAROSITE ; SORPTION ; CONVERSION ; MECHANISM ; VANADIUM ; REMOVAL |
| 资助项目 | China Ocean Mineral Resources RD Association[JS-KTHT-2019-01] ; China Ocean Mineral Resources RD Association[DY135-B2-15] |
| WOS研究方向 | Metallurgy & Metallurgical Engineering ; Mining & Mineral Processing |
| 语种 | 英语 |
| 出版者 | SPRINGER HEIDELBERG |
| WOS记录号 | WOS:000784615300001 |
| 资助机构 | China Ocean Mineral Resources RD Association |
| 源URL | [http://ir.ipe.ac.cn/handle/122111/52829]  |
| 专题 | 中国科学院过程工程研究所 |
| 通讯作者 | Feng, Yali; Li, Haoran |
| 作者单位 | 1.Univ Sci & Technol Beijing, Civil & Resource Engn Sch, Beijing 100083, Peoples R China 2.Chinese Acad Sci, Inst Proc Engn, Key Lab Biochem Engn, Beijing 100190, Peoples R China 3.Univ Chinese Acad Sci, Beijing 100049, Peoples R China |
| 推荐引用方式 GB/T 7714 | Ju, Jinrong,Feng, Yali,Li, Haoran,et al. A Novel Approach for Separation and Recovery of Titanium, Scandium, Iron from Acidic Wastewater and Red Gypsum Utilization[J]. MINING METALLURGY & EXPLORATION,2022:16. |
| APA | Ju, Jinrong,Feng, Yali,Li, Haoran,&Wang, Ben.(2022).A Novel Approach for Separation and Recovery of Titanium, Scandium, Iron from Acidic Wastewater and Red Gypsum Utilization.MINING METALLURGY & EXPLORATION,16. |
| MLA | Ju, Jinrong,et al."A Novel Approach for Separation and Recovery of Titanium, Scandium, Iron from Acidic Wastewater and Red Gypsum Utilization".MINING METALLURGY & EXPLORATION (2022):16. |
入库方式： OAI收割
来源：过程工程研究所
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