摘要
为了研究高炉渣化学成分与FetO活度、钾容量、硫容量间的规律,采用氧化锆固体电解质电池测定了气-渣-金平衡时的含碱高炉渣中FetO活度.结果表明:二元碱度增加,FetO活度增加,钾容量减小,硫容量增大;MgO,Al2O3含量增加,FetO活度降低,钾容量增大,硫容量先增大后减小;当高炉的碱负荷较高时,控制炉渣的化学成分,使FetO活度保持在0.074～0.078之间,可以使炉渣具有适宜的脱硫能力和较大的排碱能力,有助于降低碱金属的危害.
The FetO activity（aFetO） of BF slag containing alkali was determined by the zirconia solid electrolyte battery using gas-slag-metal balance technique so as to understand the relationship between aFetO,potassium capacity（CK）,sulfide capacity（CS） and the composition.The results show that the aFetO and CS increase with the binary basicity,while CK decreases.As the MgO content and Al2O3 content increase,the aFetO decreases and CK increases,and the CS increases first and then decreases.When the alkali load of BF is high,the aFetO of slag should be maintained in the range of 0.074-0.078 by controlling composition,thus the slag has suitable desulphurization capacity and large capacity of removing alkali,which is helpful to reduce the alkali metal hazards to BF.
出处
《东北大学学报（自然科学版）》
EI
CAS
CSCD
北大核心
2013年第2期240-243,共4页
Journal of Northeastern University(Natural Science)
基金
国家自然科学基金资助项目(50874036)
关键词
含碱高炉渣
FetO活度
钾容量
硫容量
化学成分
BF slag containing alkali
iron oxide activity
potassium capacity
sulfide capacity
composition
