硅还原转炉熔渣气化脱磷热力学分析  

Thermodynamic analysis on gasificating dephosphorization of converter slag by silicon reduction

作　　者：王书桓[1] 吴艳青[1] 徐志荣[2] 吕晓芳[3] 张响[1] 王春梅[2] 刘太新[2] 

机构地区：[1]河北理工大学冶金与能源学院,河北唐山063009 [2]唐山钢铁公司第一钢轧厂,河北唐山063016 [3]邢台职业技术学院,河北邢台054009

出　　处：《炼钢》2008年第1期31-34,共4页Steelmaking

基　　金：国家自然科学基金资助项目(50444028)

摘　　要：以离子理论为基础,从转炉渣脱磷热力学分析入手,计算确定了气化脱磷反应的最终产物,对转炉溅渣护炉过程中气化脱磷的热力学可行性提供了理论依据。结果表明,在转炉内还原炉渣气化脱磷是可行的。并讨论了温度、碱度、FeO含量、流动氮气等因素对炉渣气化脱磷产物平衡分压的影响。According to the ionic theory proceeding from the thermodynamic analysis of converter slag dephosphorization the final products in the gasification dephosphorization reaction have been calculated and determined, thus providing a theoretical basis for thermodynamic feasibility of gasification dephosphorization in the process of furnace protection by slag splashing. Results show that gasification dephosphorization in converter by slag reduction is feasible. Effects of such a few factors as temperature, basicity, FeO content and flowing nitrogen on the balance partial pressure are discussed.

关 键 词：转炉渣 还原脱磷 硅热还原 热力学分析 

分 类 号：X757[环境科学与工程—环境工程]