Change of Iron-containing Phases in Steelmaking Slag in Leaching Process with Organic-Inorganic Composite Medium
REN Yun-liang WANG Chen-ye ZHANG Hong-en BI Ya-mei LI Hui-quan PANG Jie
Henan Zhonghong Group Coal Chemical Co. Ltd Institute of Process Engineering, Chinese Academy of Sciences Henan Zhonghong Group Coal Chemical Co. Ltd Henan Zhonghong Group Coal Chemical Co. Ltd Institute of Process Engineering, Chinese Academy of Sciences Institute of Process Engineering, Chinese Academy of Sciences
Abstract：Steelmaking slag was leached in organic-inorganic composite medium composed of acetic acid and tributyl phosphate. The main existing form and phase distribution of iron in the leached slag were investigated by combination of SEM, EDS, XPS and FT-IR. The results show that the iron phases in raw slag include elemental iron, iron oxide, ferrite and RO phase, while in the leached slag there are iron oxides and iron hydroxides, 88.9% in the form of Fe3+ and 11.1% in the form of Fe2+. The iron resource could be recovered from the leached steelmaking slag by further magnetic separation.
任云亮 王晨晔 张洪恩 毕雅梅 李会泉 庞杰. 有机-无机复合介质浸出对钢渣中含铁物相的影响[J]. 过程工程学报, 2015, 15(3): 430-434.
REN Yun-liang WANG Chen-ye ZHANG Hong-en BI Ya-mei LI Hui-quan PANG Jie. Change of Iron-containing Phases in Steelmaking Slag in Leaching Process with Organic-Inorganic Composite Medium. Chin. J. Process Eng., 2015, 15(3): 430-434.
2015, Vol. 15 
