Dry processing technology of exhaust gas emitted by roasting of rare earth concentrates with concentrated sulfuric acid
文献类型：期刊论文
| 作者 | Zhao J(赵京)2,3 ; Li B(李波)3; Wei XL(魏小林)1,3; Li B(李博); Wei XL(魏小林); Zhao J(赵京)
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| 刊名 | JOURNAL OF CLEANER PRODUCTION
 |
| 出版日期 | 2021-12-10 |
| 卷号 | 327页码:11 |
| ISSN号 | 0959-6526 |
| 关键词 | Rare earth concentrates Concentrated sulfuric acid roasting Roasting exhaust gas Wet spraying Dry processing technology |
| DOI | 10.1016/j.jclepro.2021.129489 |
| 通讯作者 | Li, Bo(libo@imech.ac.cn) |
| 英文摘要 | At present, wet spraying is the main process for treatment of exhaust gas emitted by the concentrated sulfuric acid roasting method for decomposition of rare earth concentrates, which not only consumes a large amount of resources but also wastes the residual heat corresponding to temperatures of approximately 300 degrees C. In this paper, an exhaust gas dry processing technology that is completely different from the original wet spray process is proposed and successfully implemented in a rare earth roasting kiln. The dry process has successfully realized dust removal, cooling and acid condensation from exhaust gas through a cyclone separator and heat exchange-condensing acid system, and the waste heat can be converted into steam through a steam drum, which greatly simplifies the process for treatment of roasting exhaust gas. Compared with wet spraying, the dry process has the advantages of operational simplicity, small footprint, low energy consumption, low maintenance cost and no wastewater production, which makes it a promising process for the treatment of exhaust gas from rare earth roasting. |
| 分类号 | 一类 |
| WOS关键词 | BAOTOU ; HYDROMETALLURGY ; DECOMPOSITION ; SEPARATION ; MINERALS ; RECOVERY ; BEHAVIOR ; ELEMENTS ; THORIUM ; METALS |
| 资助项目 | National Natural Science Foundation of China[51736010] ; Strategic Priority Research Program of the Chinese Academy of Sciences[XDA21040500] |
| WOS研究方向 | Science & Technology - Other Topics ; Engineering ; Environmental Sciences & Ecology |
| 语种 | 英语 |
| WOS记录号 | WOS:000735847700020 |
| 资助机构 | National Natural Science Foundation of China ; Strategic Priority Research Program of the Chinese Academy of Sciences |
| 其他责任者 | Li, Bo |
| 源URL | [http://dspace.imech.ac.cn/handle/311007/88290]  |
| 专题 | 力学研究所_非线性力学国家重点实验室 |
| 作者单位 | 1.Univ Chinese Acad Sci, Sch Engn Sci, Beijing 100049, Peoples R China 2.Chinese Acad Sci, Inst Engn Thermophys, Beijing 100190, Peoples R China; 3.Chinese Acad Sci, Inst Mech, State Key Lab High Temp Gas Kinet, Beijing 100190, Peoples R China; |
| 推荐引用方式 GB/T 7714 | Zhao J,Li B,Wei XL,et al. Dry processing technology of exhaust gas emitted by roasting of rare earth concentrates with concentrated sulfuric acid[J]. JOURNAL OF CLEANER PRODUCTION,2021,327:11. |
| APA | 赵京,李波,魏小林,Li B,Wei XL,&Zhao J.(2021).Dry processing technology of exhaust gas emitted by roasting of rare earth concentrates with concentrated sulfuric acid.JOURNAL OF CLEANER PRODUCTION,327,11. |
| MLA | 赵京,et al."Dry processing technology of exhaust gas emitted by roasting of rare earth concentrates with concentrated sulfuric acid".JOURNAL OF CLEANER PRODUCTION 327(2021):11. |
入库方式： OAI收割
来源：力学研究所
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