Knowledge Management System Of Institute of process engineering,CAS
| Investigation of Reaction Mechanism on the Lime-Free Roasting of Chromium-Containing Slag | |
| Yu, Kai-Ping1,2,3; Zhang, Hong-Ling1,3,4; Chen, Bo2; Xu, Hong-Bin1,3,4; Zhang, Yi1,3,4 | |
| 2015-12-01 | |
| Source Publication | METALLURGICAL AND MATERIALS TRANSACTIONS B-PROCESS METALLURGY AND MATERIALS PROCESSING SCIENCE
 |
| ISSN | 1073-5615 |
| Volume | 46Issue:6Pages:2553-2563 |
| Abstract | The lime-free roasting process of trivalent chromium-containing slag was investigated. The effect of Fe and liquid phase on the conversion reaction of chromium was discussed. The oxidation of trivalent chromium depends greatly on the diffusion of Na+ and O-2. Both the raw material Na2CO3 and the intermediate product NaFeO2 serve as the carriers of Na+. The Na+ diffusion is improved by the binary liquid phase of Na2CrO4-Na2CO3, whereas excess liquid phase results in a low conversion rate of chromium by hindering the diffusion of oxygen towards the reaction interface. With the increasing of liquid volume, the controlled step of chromium oxidation changes from Na+ diffusion to oxygen diffusion. The mechanism study showed that the volume of liquid phase increased while raising the reaction temperature or prolonging the reaction time. Based on the role of both liquid phase and Fe, the oxidation process of chromium was summarized as a three-stage model: the Na+ diffusion-controlled stage, the O-2 diffusion-controlled stage, and the oxidation reaction halted stage. (C) The Minerals, Metals & Materials Society and ASM International 2015 |
| Subtype | Article |
| WOS Headings | Science & Technology ; Technology |
| DOI | 10.1007/s11663-015-0428-5 |
| Indexed By | SCI |
| Language | 英语 |
| WOS Keyword | TITANOMAGNETITE ; MINERALS |
| WOS Research Area | Materials Science ; Metallurgy & Metallurgical Engineering |
| WOS Subject | Materials Science, Multidisciplinary ; Metallurgy & Metallurgical Engineering |
| Funding Organization | National Natural Science Foundation of China(11204304 ; National Basic Research Program (973 Program) of China(2013CB632600) ; National High-tech Research and Development Program of China(2011AA060702) ; 21376251 ; 21406233) |
| WOS ID | WOS:000367067600018 |
| Citation statistics | |
| Document Type | 期刊论文 |
| Identifier | http://ir.ipe.ac.cn/handle/122111/20083 |
| Collection | 研究所（批量导入） |
| Affiliation | 1.Chinese Acad Sci, Inst Proc Engn, Natl Engn Lab Hydromet Cleaner Prod Technol, Beijing 100190, Peoples R China 2.Fuzhou Univ, Coll Zijin Min, Fuzhou 350108, Fujian, Peoples R China 3.Chinese Acad Sci, Key Lab Green Proc & Engn, Beijing 100190, Peoples R China 4.Chinese Acad Engn, Beijing, Peoples R China |
| Recommended Citation GB/T 7714 | Yu, Kai-Ping,Zhang, Hong-Ling,Chen, Bo,et al. Investigation of Reaction Mechanism on the Lime-Free Roasting of Chromium-Containing Slag[J]. METALLURGICAL AND MATERIALS TRANSACTIONS B-PROCESS METALLURGY AND MATERIALS PROCESSING SCIENCE,2015,46(6):2553-2563. |
| APA | Yu, Kai-Ping,Zhang, Hong-Ling,Chen, Bo,Xu, Hong-Bin,&Zhang, Yi.(2015).Investigation of Reaction Mechanism on the Lime-Free Roasting of Chromium-Containing Slag.METALLURGICAL AND MATERIALS TRANSACTIONS B-PROCESS METALLURGY AND MATERIALS PROCESSING SCIENCE,46(6),2553-2563. |
| MLA | Yu, Kai-Ping,et al."Investigation of Reaction Mechanism on the Lime-Free Roasting of Chromium-Containing Slag".METALLURGICAL AND MATERIALS TRANSACTIONS B-PROCESS METALLURGY AND MATERIALS PROCESSING SCIENCE 46.6(2015):2553-2563. |
| Files in This Item: | ||||||
| File Name/Size | DocType | Version | Access | License | ||
| Investigation of Rea（4290KB） | 期刊论文 | 出版稿 | 限制开放 | CC BY-NC-SA | Application Full Text | |
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