Research on Rare Earth Tailings-Based Slag Used for Dephosphorization of Hot Metal Containing Moderate Amounts of Chromium
Research on Rare Earth Tailings-Based Slag Used for Dephosphorization of Hot Metal Containing Moderate Amounts of Chromium
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稀土尾矿渣用于中铬铁水脱磷的研究
DOI：
10.1007/s11663-022-02536-z
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发表时间：
2022-05
影响因子：
3
通讯作者：
Changji Lv
中科院分区：
文献类型：
--
作者：
Liangjun Chen;Haimeng Xue;Jie Li;Yong Wan;Yunjin Xia;Changji Lv
The utilization of rare earth tailings still has various disadvantages such as high energy consumption, low utilization ratio and serious pollution, which severely restricts the industrialization. As a result, it is difficult to solve the solid waste treatment problems of rare earth tailings fundamentally. To achieve bulk utilization in a way of energy conservation and environmental protection, a novel technology of dephosphorization using rare earth tailings-based slag was proposed to realize both dephosphorization and chromium retention of hot metal containing moderate amounts of chromium. To develop this new technology, a series of equilibrium experiments between slag and hot metal containing moderate amounts of chromium was carried out using a molybdenum disilicide resistance furnace at 1723 K. The effect of slag composition on the oxidation of phosphorus and chromium in hot metal was investigated, and the commercial software FactSage 7.2 was also utilized for analyses. The effective dephosphorization and recycle of rare earth tailings were realized via optimizing chemical composition of slag. In addition, the addition of Cr2O3 inhibits the chromium loss significantly, resulting from increased activity of Cr2O3. When the CaO/Fe2O3 ratio in the initial slag increases, the chromium loss ratio shows a continual declining tendency, while the dephosphorization efficiency first increases and then decreases. With the increase of rare earth tailings proportion (abbreviated as RETP), both the dephosphorization efficiency and chromium loss ratio fall. Both the dephosphorization efficiency and chromium loss ratio show a decreasing tendency with increasing CaF2 content.
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影响因子：
4.4
作者：
Tang Rong;Xue Xiang-xin;Li Yong;Li Ying-nan
通讯作者：
Li Ying-nan
DOI：
10.1017/cbo9781139207249.009
发表时间：
2012
期刊：
--
影响因子：
--
作者：
W. Marsden
通讯作者：
W. Marsden
DOI：
10.3390/met7060195
发表时间：
2017-05
期刊：
--
影响因子：
--
作者：
Yan Zhou;He Yang;X. Xue;Shuai Yuan
通讯作者：
Yan Zhou;He Yang;X. Xue;Shuai Yuan
DOI：
10.1007/s11663-021-02270-y
发表时间：
2021-07
期刊：
Metallurgical and Materials Transactions B
影响因子：
--
作者：
Han Sun;Jian Yang;Runhao Zhang;Wenkui Yang
通讯作者：
Han Sun;Jian Yang;Runhao Zhang;Wenkui Yang
影响因子：
8.8
作者：
Yue Zhang;H. Lin;Ying-bo Dong;Xiao-fang Xu;Xin Wang;Yue-Jiao Gao
通讯作者：
Yue Zhang;H. Lin;Ying-bo Dong;Xiao-fang Xu;Xin Wang;Yue-Jiao Gao