Lanzhou University of Technology Institutional Repository (LUT_IR)
Phase transformations during the oxidation of fayalite in iron-rich nickel slag | |
Ma, Yongbo1,2; Du, Xueyan1,2 | |
2020-04 | |
发表期刊 | INTERNATIONAL JOURNAL OF MATERIALS RESEARCH |
ISSN | 1862-5282 |
卷号 | 111期号:4页码:290-296 |
摘要 | Phase transformations during the oxidation of fayalite (Fe2SiO4) are investigated for the recovery of iron from iron-rich nickel slag by oxidation-magnetic separation. The proportions of various phases calculated by FactSage 7.1 show that augite and spinel are the major phases in the FeO-SiO2-MgO-CaO-O-2 system in air atmosphere. The decreased content of Fe2+ shows that Fe2SiO4 is gradually oxidized into Fe3O4 with increasing oxidation time. XRD patterns demonstrate that Fe3O4 and Ca(Mg,Fe)Si2O6 are the dominant phases after the oxidation. The Mossbauer spectrum indicates that 93.1 wt.% of iron in oxidized nickel slag is in magnetic minerals, while a limited amount of iron is contained in non-magnetic minerals. Ca(Mg,Fe)Si2O6 was formed during the heating stage in Ar atmosphere through the polymerization of SiO44- and also via peritectic reaction after the isothermal oxidation. |
关键词 | Phase transformation Oxidation Fayalite Magnetite Augite |
DOI | 10.3139/146.111888 |
收录类别 | SCI ; SCIE ; EI |
语种 | 英语 |
资助项目 | Science and Technology Major Project Plan of Gansu Province[145RTSA004] |
WOS研究方向 | Metallurgy & Metallurgical Engineering |
WOS类目 | Metallurgy & Metallurgical Engineering |
WOS记录号 | WOS:000527105900003 |
出版者 | CARL HANSER VERLAG |
EI入藏号 | 20202208757625 |
来源库 | WOS |
引用统计 | |
文献类型 | 期刊论文 |
条目标识符 | https://ir.lut.edu.cn/handle/2XXMBERH/64293 |
专题 | 省部共建有色金属先进加工与再利用国家重点实验室 材料科学与工程学院 研究生院 |
通讯作者 | Du, Xueyan |
作者单位 | 1.Lanzhou Univ Technol, State Key Lab Adv Proc & Recycling Nonferrous Met, Lanzhou, Peoples R China; 2.Lanzhou Univ Technol, Sch Mat Sci & Engn, 287 Langongping Rd, Lanzhou 730050, Peoples R China |
第一作者单位 | 省部共建有色金属先进加工与再利用国家重点实验室; 材料科学与工程学院 |
通讯作者单位 | 省部共建有色金属先进加工与再利用国家重点实验室; 材料科学与工程学院 |
第一作者的第一单位 | 省部共建有色金属先进加工与再利用国家重点实验室 |
推荐引用方式 GB/T 7714 | Ma, Yongbo,Du, Xueyan. Phase transformations during the oxidation of fayalite in iron-rich nickel slag[J]. INTERNATIONAL JOURNAL OF MATERIALS RESEARCH,2020,111(4):290-296. |
APA | Ma, Yongbo,&Du, Xueyan.(2020).Phase transformations during the oxidation of fayalite in iron-rich nickel slag.INTERNATIONAL JOURNAL OF MATERIALS RESEARCH,111(4),290-296. |
MLA | Ma, Yongbo,et al."Phase transformations during the oxidation of fayalite in iron-rich nickel slag".INTERNATIONAL JOURNAL OF MATERIALS RESEARCH 111.4(2020):290-296. |
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