Roasting-induced phase change and its influence on phosphorus removal through acid leaching for high-phosphorus iron ore | |
Yang, Min1,2,3; Zhu, Qing-shan1; Fan, Chuan-lin1; Xie, Zhao-hui1; Li, Hong-zhong1 | |
刊名 | INTERNATIONAL JOURNAL OF MINERALS METALLURGY AND MATERIALS |
2015-04-01 | |
卷号 | 22期号:4页码:346-352 |
关键词 | goethite phosphorus removal roasting leaching |
ISSN号 | 1674-4799 |
通讯作者 | Zhu, QS (reprint author), Chinese Acad Sci, Inst Proc Engn, State Key Lab Multiphase Complex Syst, Beijing 100190, Peoples R China. |
英文摘要 | In the present study, roasting-induced phase change and its influence on phosphorus removal via leaching has been investigated for high-phosphorus iron ore. The findings indicate that phosphorus in the ore is associated with goethite and exists mainly in amorphous Fe3PO7 phase. The phosphorus remains in the amorphous phase after being roasted below 300A degrees C. Grattarolaite (Fe3PO7) is found in samples roasted at 600-700A degrees C, revealing that phosphorus phase is transformed from the amorphous form to crystalline grattarolaite during roasting. Leaching tests on synthesized pure grattarolaite reveal a low rate of phosphorus removal by sulfuric acid leaching. When the roasting temperature is higher than 800A degrees C, grattarolaite is found to react with alumina to form aluminum phosphate, and the reactivity of grattarolaite with alumina increases with increasing roasting temperature. Consequently, the rate of phosphorus removal also increases with increasing roasting temperature due to the formation of acid-soluble aluminum phosphate. |
学科主题 | Materials Science ; Metallurgy & Metallurgical Engineering ; Mining & Mineral Processing |
WOS标题词 | Science & Technology ; Technology ; Physical Sciences |
类目[WOS] | Materials Science, Multidisciplinary ; Metallurgy & Metallurgical Engineering ; Mining & Mineral Processing |
研究领域[WOS] | Materials Science ; Metallurgy & Metallurgical Engineering ; Mining & Mineral Processing |
关键词[WOS] | HYDROMETALLURGICAL PROCESS ; DEPHOSPHORIZATION ; KINETICS |
收录类别 | SCI |
语种 | 英语 |
WOS记录号 | WOS:000352702700002 |
内容类型 | 期刊论文 |
源URL | [http://ir.ipe.ac.cn/handle/122111/13786] |
专题 | 过程工程研究所_研究所(批量导入) |
作者单位 | 1.Chinese Acad Sci, Inst Proc Engn, State Key Lab Multiphase Complex Syst, Beijing 100190, Peoples R China 2.Univ Chinese Acad Sci, Beijing 100049, Peoples R China 3.Univ Sci & Technol Beijing, Sch Chem & Biol Engn, Dept Chem, Beijing 100083, Peoples R China |
推荐引用方式 GB/T 7714 | Yang, Min,Zhu, Qing-shan,Fan, Chuan-lin,et al. Roasting-induced phase change and its influence on phosphorus removal through acid leaching for high-phosphorus iron ore[J]. INTERNATIONAL JOURNAL OF MINERALS METALLURGY AND MATERIALS,2015,22(4):346-352. |
APA | Yang, Min,Zhu, Qing-shan,Fan, Chuan-lin,Xie, Zhao-hui,&Li, Hong-zhong.(2015).Roasting-induced phase change and its influence on phosphorus removal through acid leaching for high-phosphorus iron ore.INTERNATIONAL JOURNAL OF MINERALS METALLURGY AND MATERIALS,22(4),346-352. |
MLA | Yang, Min,et al."Roasting-induced phase change and its influence on phosphorus removal through acid leaching for high-phosphorus iron ore".INTERNATIONAL JOURNAL OF MINERALS METALLURGY AND MATERIALS 22.4(2015):346-352. |
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