东北大学学报(自然科学版) ›› 2013, Vol. 34 ›› Issue (2): 240-243.DOI: -

• 材料与冶金 • 上一篇    下一篇

含碱高炉渣的氧化铁活度

李建朝1,孔延厂2,李福民2,吕庆2   

  1. (1东北大学材料与冶金学院,辽宁沈阳110819;2河北联合大学冶金与能源学院,河北唐山063009)
  • 收稿日期:2012-08-31 修回日期:2012-08-31 出版日期:2013-02-15 发布日期:2013-04-04
  • 通讯作者: -
  • 作者简介:李建朝(1963-),男,河北平山人,高级工程师,东北大学博士研究生;李福民(1971-),男,河北玉田人,河北联合大学教授;吕庆(1954-),男,河北晋县人,河北联合大学教授,东北大学博士生导师.
  • 基金资助:
    国家自然科学基金资助项目(50874036).

Ferrous Oxide Activity of BF Slag Containing Alkali

LI Jianchao1, KONG Yanchang2, LI Fumin2, L Qing2   

  1. 1. School of Materials & Metallurgy, Northeastern University, Shenyang 110819, China;2. College of Metallurgy and Energy, Hebei United University, Tangshan 063009, China.
  • Received:2012-08-31 Revised:2012-08-31 Online:2013-02-15 Published:2013-04-04
  • Contact: L Qing
  • About author:-
  • Supported by:
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摘要: 为了研究高炉渣化学成分与FetO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FetO活度.结果表明:二元碱度增加,FetO活度增加,钾容量减小,硫容量增大;MgO,Al2O3含量增加,FetO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FetO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.

关键词: 含碱高炉渣, FetO活度, 钾容量, 硫容量, 化学成分

Abstract: The FetO activity (aFetO) 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 aFetO, potassium capacity(CK), sulfide capacity(CS) and the composition. The results show that the aFetO and CS increase with the binary basicity, while CK decreases. As the MgO content and Al2O3 content increase, the aFetO decreases and CK increases, and the CS increases first and then decreases. When the alkali load of BF is high, the aFetO 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.

Key words: BF slag containing alkali, iron oxide activity, potassium capacity, sulfide capacity, composition

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