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Study on sulphide capacity of CaO-SiO_2-Al_2O_3-MgO-Fe_tO slags

查看全文 作　　者：Chengli [1]Wang;Qing [2]Lu;Shuhui [1]Zhang;Fumin [1,2]Li 高影响力作者 机构地区：[1]School of Materials and Metallurgy, Northeastern University, Shenyang 110004, China;[2]College of Metallurgy and Energy, Hebei Polytechnic University, Tangshan 063009, China高影响力机构 出　　处：《Journal of University of Science and Technology Beijing》索引2006年第13卷第3期,共5页高影响力期刊 基　　金：This project was financially supported by the National Natural Science Foundation of China (No.50574036) and Natural Science Foun-dation of HeBei Province, China (No.502267). 摘　　要：The sulphide capacity of CaO-SiO2-Al2O3-MgO-FetO slags was studied at 1773 K using gas-slag equilibrium techniques. Utilizing a Pt crucible, the slag was equilibrated with a mixture of gases, namely, CO, CO2, SO2 and N2 to provide the partial pressure of oxygen and sulphur. It was shown that at fixed FetO and Al2O3 contents and a fixed {(%CaO)+(%MgO)}/(%SiO2) ratio, the sulphide capacity decreases with increasing MgO content. At a constant (%CaO)/(%SiO2) ratio and constant MgO and Al2O3 contents, increas- ing the FetO content of the slags also results in an increase of the sulphide capacity. The rising basicity of (%CaO)/(%SiO2) from 1.0 to 1.4 at fixed MgO, FetO and Al2O3 contents significantly increases the sulphide capacity. 关 键 词：CaO-SiO2-Al2O3-MgO-FetO 矿渣 硫化物 物料平衡
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