Harmless treatment and resource utilization of stainless steel pickling sludge via direct reduction and magnetic separation
文献类型：期刊论文
| 作者 | Wu, Ming-Tao1,2,3; Li, Yong-Li1,2; Guo, Qiang1,2; Shao, Da-Wei1,2; He, Ming-Ming1,2; Qi, Tao1,2 |
| 刊名 | JOURNAL OF CLEANER PRODUCTION
 |
| 出版日期 | 2019-12-10 |
| 卷号 | 240页码:7 |
| 关键词 | Pickling sludge Direct reduction Magnetic separation Resourcing |
| ISSN号 | 0959-6526 |
| DOI | 10.1016/j.jclepro.2019.118187 |
| 英文摘要 | The process of neutralization of stainless steel pickling wastewater will produce a lot of pickling sludge, and improper treatment of this sludge poses a serious threat to the environment. This paper presents a new process for disposing stainless steel pickling sludge in an environmentally friendly manner while effectively reusing the elements contained in the sludge. This process involved direct reduction with magnetic separation. First, the harmful components of sludge were turned into harmless components by converting Fe3+, Cr3+, and Ni2+ to Fe, Cr, and Ni metals by direct reduction. The temperature of reduction was 1473 K, which was lower than the existing process temperature (1673 K). Then, the reduction product was subjected to magnetic separation, whose efficiency is high, to separate metals and nonmetals. Consequently, the metal alloy powder (Ni + Cr + Fe) and nonmetallic phase, which were harmless, were collected. The nonmetallic phase was mainly composed of CaF2. The recovery rates of Fe, Cr, and Ni were 95.3%, 88.7%, and 97.53%, respectively, and their grades were 69.31%, 7.60%, and 16.71%, respectively. Alloy powder can be used as raw material for stainless steel smelting. (C) 2019 Published by Elsevier Ltd. |
| WOS关键词 | SOLID-STATE REDUCTION ; CHROMIUM |
| 资助项目 | National Natural Science Foundation of China[51304181] ; Key Research Program of Frontier Sciences of Chinese Academy of Sciences[QYZDJ-SSW-JSC021] ; Key Research Program of Chinese Academy of Sciences[ZDRW-ZS-2018-1] |
| WOS研究方向 | Science & Technology - Other Topics ; Engineering ; Environmental Sciences & Ecology |
| 语种 | 英语 |
| WOS记录号 | WOS:000487936100091 |
| 出版者 | ELSEVIER SCI LTD |
| 资助机构 | National Natural Science Foundation of China ; Key Research Program of Frontier Sciences of Chinese Academy of Sciences ; Key Research Program of Chinese Academy of Sciences |
| 源URL | [http://ir.ipe.ac.cn/handle/122111/31094]  |
| 专题 | 中国科学院过程工程研究所 |
| 通讯作者 | Li, Yong-Li; Guo, Qiang |
| 作者单位 | 1.Chinese Acad Sci, Inst Proc Engn, Natl Engn Lab Hydromet Cleaner Prod Technol, Beijing 100190, Peoples R China 2.Chinese Acad Sci, Inst Proc Engn, Key Lab Green Proc & 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 | Wu, Ming-Tao,Li, Yong-Li,Guo, Qiang,et al. Harmless treatment and resource utilization of stainless steel pickling sludge via direct reduction and magnetic separation[J]. JOURNAL OF CLEANER PRODUCTION,2019,240:7. |
| APA | Wu, Ming-Tao,Li, Yong-Li,Guo, Qiang,Shao, Da-Wei,He, Ming-Ming,&Qi, Tao.(2019).Harmless treatment and resource utilization of stainless steel pickling sludge via direct reduction and magnetic separation.JOURNAL OF CLEANER PRODUCTION,240,7. |
| MLA | Wu, Ming-Tao,et al."Harmless treatment and resource utilization of stainless steel pickling sludge via direct reduction and magnetic separation".JOURNAL OF CLEANER PRODUCTION 240(2019):7. |
入库方式： OAI收割
来源：过程工程研究所
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