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金属学报  1957, Vol. 2 Issue (1): 19-30    
  论文 本期目录 | 过刊浏览 |
高炉炉缸内化学平衡的考察——Ⅱ.矽-硫、矽-碳和矽-锰平衡
邹元爔
中国科学院冶金陶瓷研究所
AN INVESTIGATION OF CHEMICAL EQUILIBRIA IN THE BLAST-FURNACE HEARTH Ⅱ. THE SILICON-SULFUR, SILICON-CARBON AND SILICONMANGANESE EQUILIBRIA
CHOU YUAN-HSI Institute of Metallurgy and Ceramics; Academia Sinica
全文: PDF(850 KB)  
摘要: 本文根据前人研究结果,导出了一个计算校正的SiO_2分子分数N′_(SiO_2)的公式。依此式及CaO-SiO_2二元系中logα_(SiO_2)与N_(SiO_2)的关系可以求得液态高炉型熔渣内SiO_2的活度。然后分析了本系列前一文内所提到的122组高炉渣、铁数据,将[%Si]~(1/2)/(α_(SiO_2))~(1/2)与(%S)/[%S]及[%Mn]/(%MnO)分别画成曲线。从曲线的形状得知矽还原度与脱硫及锰还原度间有着平行的关系,但不论矽-硫或矽-锰反应都没有在高炉炉缸内达到平衡。矽-碳反应即矽的还原反应在碱度较高时可能在高炉炉缸内接近平衡。
Abstract:In a previous paper, it has been found that the manganese-sulfur equilibriumis approached in the blast-furnace hearth in agreement with the conelusions of somerecent publications. This paper presents an analysis of the same data used in theprevious paper with a view to investigating the equilibria batween silicon and theother components dissolved in liquid iron sach as salfur, carbon and manganese. It is shown that neither the silicon-sulfur nor the silicon-manganese equilibriumis approached in the blast-furnace hearth, although a parellel relationship existsbetween [%S]~(1/2)/(α_(SiO_2))~(1/2) and (%S)/[%S] and also between [%Si]~(1/2)/(α_(SiO_2))~(1/2)and [%Mn]/(%MnO). By using [%Si]~(1/2)/(α_(SiO_2))~(1/2) as an index ot the degree of silicon reduction,it has been found that an increase in slag basicity promotes silicon reduction in theblast-furnace hearth. Consequently, it is possible for the silicon-carbon reaction toapproach equilibrium in the blast-furnace hearth provided that basicity is highenough. The favorable effect of increasing basicity on the degree of silicon reduc-tion is briefly discussed from the view point of the mechanism of reduction.
收稿日期: 1957-01-18      出版日期: 1957-01-18

引用本文:

邹元爔. 高炉炉缸内化学平衡的考察——Ⅱ.矽-硫、矽-碳和矽-锰平衡[J]. 金属学报, 1957, 2(1): 19-30.
CHOU YUAN-HSI Institute of Metallurgy and Ceramics; Academia Sinica. AN INVESTIGATION OF CHEMICAL EQUILIBRIA IN THE BLAST-FURNACE HEARTH Ⅱ. THE SILICON-SULFUR, SILICON-CARBON AND SILICONMANGANESE EQUILIBRIA. Acta Metall Sin, 1957, 2(1): 19-30.

链接本文:

http://www.ams.org.cn/CN/      或      http://www.ams.org.cn/CN/Y1957/V2/I1/19

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