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根据新提出的碱度指标,对低碱度高炉型渣的离子结构作了假定。利用前文提出的、适用于各种碱性炼钢型渣的硫分配比公式: (%S)/[%S]=32L_Sf_S/γ_(Fe~(2+))γ_(S~(2-))·(∑n+∑n-)/n_(FeO)对Hatch和Chipman,Taylor和Stobo以及等的饱和碳铁液和高炉型渣平衡实验数据进行处理分析,得出: Igγ_(Fe~(2+))γ_(S~(2-))=-53.5 N_(O~(2-))+2.12。进一步计算证明了该硫分配比公式也适用于一般的低碱度渣。对碱性炼钢型渣适用的、关于FeO含量对脱硫作用的规律证明了也适用于低碱度渣。将f_S与(%S)/[%S]合并考虑,则(%S)/α_S基本上不受温度和铁液成分的影响。
According to the newly proposed alkalinity index, the ionic structure of slag with low alkalinity was assumed. According to the formula of sulfur distribution which is proposed in the above, which is suitable for all types of alkaline steelmaking slag: (% S) / [% S] = 32L_Sf_S / γ_ (Fe ~ (2 +)) γ_ (S ~ ) (Σn + Σn -) / n_ (FeO) The experimental data of slag saturation of Hatch and Chipman, Taylor and Stobo, and other saturated carbon and liquid iron and blast furnace slag were analyzed. The results showed that Igγ_ (Fe ~ )) γ_ (S ~ (2 -)) = - 53.5 N_ (O ~ (2 -)) + 2.12. Further calculations show that the sulfur distribution ratio formula is also suitable for general low alkalinity slag. Suitable for alkaline steelmaking slag, the law on the effect of the FeO content on the desulfurization proves that it is also suitable for low alkalinity slag. Considering f_S in combination with (% S) / [% S], (% S) / α_S is essentially unaffected by temperature and hot metal components.