Thermodynamics of Sulfur and Carbon in Carbon Saturated Fe-V-Ni-Mo Alloy Melts

摘要：

　　Liquid ferro-alloys containing V,Mo,and Ni can be produced by the carbothermic reduction of spent catalysts used in petrochemical industry.Sulfur can be picked up into the alloy melts from the sulfur bearing spent catalysts,and it is important to keep sulfur in the slag during smelting reduction process.Therefore,thermodynamics of sulfur in these alloy melts is very important for producing low sulfur ferro-alloys.Prediction of carbon content in these alloy melts is also important for refining these alloys.In the present study,using the slag/metal equilibration technique,the sulfur distribution ratio was measured between a CaO-Al2O3 slag with a known sulfide capacity and carbon saturated Fe-V-Mo-Ni alloy melts of various compositions at 1873K.The carbon solubility in these alloy melts was also measured.The experimental results were analyzed using thermodynamic models to determine the first-and the second-order interaction parameters of vanadium,molybdenum and nickel on carbon and sulfur in liquid alloys under carbon saturated condition.Experiments was also carried out to check the accuracy of predicted carbon and sulfur contents in Fe-V-Mo-Ni alloy melts using thermodynamic parameters determined in the present study.

关键词： carbon solubility sulfide capacity vanadium nickel molybdenum

作者: Do-Hyeong KIM Jung-Mock JANG Joon-Suk HAN Jong-Jin PAK

作者单位: Dept.of Materials Engineering,Hanyang University,Ansan,426-791 Korea

会议类型: 国际会议

会议名称: the 6th International Congress on the Science and Technology of Steelmaking,ICS2015(第六届国际炼钢科技大会)

会议地点: 北京

会议语种:英文

页码: 910-913

在线出版日期: 2015-05-12（万方平台首次上网日期，不代表论文的发表时间）