An approach towards utilization of water-quenched blast furnace slag for recovery of titanium, magnesium, and aluminum
文献类型：期刊论文
| 作者 | Ju, Jinrong1,2,3; Feng, Yali1; Li, Haoran2,3; Wu, Ruifeng1; Wang, Ben1 |
| 刊名 | Journal of Environmental Chemical Engineering
 |
| 出版日期 | 1905-07-14 |
| 卷号 | 10期号:4 |
| 关键词 | Alumina - Aluminum - Aluminum oxide - Ammonia - Blast furnaces - Calcination - Extraction - Leaching - Magnesium - Magnesium compounds - Metal recovery - Precipitation (chemical) - Slags - Steelmaking - Sulfur compounds - Titanium dioxide |
| DOI | 10.1016/j.jece.2022.108153 |
| 英文摘要 | Resource utilization of water-quenched blast furnace slag (BFS) for recovery of valuable metals such as titanium, magnesium, and aluminum are strategic issues for the iron and steel industry's long-term development. This study proposed a sustainable strategy for simultaneous Ti, Mg, and Al extraction from water-quenched BFS using the ammonium sulfate roasting-dilute acid leaching method. The results showed that the roasting reaction was carried out at a roasting temperature of 380 掳C, a mass ratio of (NH4)2SO4 to water-quenched BFS of 2.5:1, and a roasting time of 90 min, and the valuable metals were converted into the corresponding sulfates. The roasted slag was then leached by the 1 mol/L sulfuric acid solution, with Ti, Mg, and Al leaching efficiency reaching 95.45%, 98.92%, and 92.32%, respectively. We proposed the mechanism for extracting valuable metals from water-quenched BFS using an ammonium sulfate roasting-dilute acid leaching process based on XRD and SEM-EDS analysis. Furthermore, an efficient separation process for converting Ti, Mg, and Al in the pregnant solution to TiO2, MgC2O4.2H2O, and Al2O3 was developed. The final filtrate was directly evaporated and crystallized to obtain (NH4)2SO4, which can be used in the roasting process, resulting in ammonia and sulfur recycling. The method proposed in this paper can be effectively applied to the extraction, separation, and recovery of Ti, Mg, and Al in water-quenched BFS, which is completely consistent with the concept of clean production and efficient utilization of industrial solid wastes. It is extremely important for the iron and steel industry's long-term production. 漏 2022 Elsevier Ltd. |
| 学科主题 | Oxalic Acid |
| 项目编号 | This research was supported by China Ocean Mineral Resources R&D Association under Grant No. JS-KTHT-2019-01 and No. DY135-B2-15 . I want to thank my wife, Lina Ma (Xi&rsquo ; an Shiyou University), for her encouragement during the writing of this paper. |
| 出版者 | Elsevier Ltd |
| 源URL | [http://ir.ipe.ac.cn/handle/122111/61214]  |
| 作者单位 | 1.Civil and Resource Engineering School, University of Science and Technology Beijing, Beijing; 100083, China 2.University of Chinese Academy of Sciences, Beijing; 100049, China 3.Key Laboratory of Biochemical Engineering, Institute of Process Engineering, Chinese Academy of Sciences, Beijing; 100190, China |
| 推荐引用方式 GB/T 7714 | Ju, Jinrong,Feng, Yali,Li, Haoran,et al. An approach towards utilization of water-quenched blast furnace slag for recovery of titanium, magnesium, and aluminum[J]. Journal of Environmental Chemical Engineering,1905,10(4). |
| APA | Ju, Jinrong,Feng, Yali,Li, Haoran,Wu, Ruifeng,&Wang, Ben.(1905).An approach towards utilization of water-quenched blast furnace slag for recovery of titanium, magnesium, and aluminum.Journal of Environmental Chemical Engineering,10(4). |
| MLA | Ju, Jinrong,et al."An approach towards utilization of water-quenched blast furnace slag for recovery of titanium, magnesium, and aluminum".Journal of Environmental Chemical Engineering 10.4(1905). |
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来源：过程工程研究所
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