Study on Desulphurization of Hot Metal Using Different Agents

摘要：

　　The abilities of the different agents to desulfurize hot metal under the same experimental conditions were compared.For pure Mg,90%of the addition rushed out in less than 2 seconds.MgS was formed on particles of MgO originating from the surface of Mg granules.The remaining dissolved Mg(<10%)in hot metal continued to form MgS on the surface of micro particles.Single CaO particles desulfurize hot metal by forming CaS.In the case of CaC2,an outer layer of CaS grew around the particle.An inner layer of graphite was detected between the CaS layer and the CaC2.Large CaO particles and agglomerates of CaO led to the formation of 2CaO.SiO2.It hindered further utilization of CaO.Formation of 2CaO.SiO2 was favoured by a high oxygen potential.Adding mixtures of lime and Mg showed that Mg improved the ability of commercial lime.The use of fluidized lime was found to have great advantage over the commonly used lime.

关键词： desulfurization hot metal lime Flucal Mg CaC2

作者: David LINDSTR(O)M Spyridon KARAMOUTSOS Sichen DU

作者单位: Department of Materials Science and Engineering,Royal Institute of Technology,Stockholm,Sweden Lhoist Recherche et Developpement S.A.,Rue de IIndustrie,31-B-1400 Nivelles,Belgium

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: 49-52

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）