Abstract:Distribution ratios of S and P are widely used in thermodynamic analysis of desulphurization and dephophorization reaction between slag and metal. Some theoretical issues about distribution ratios of S and P are discussed according to the law of distribution. Analysis indicates that it is not feasible to prove that the amount of slag have nothing to do with distribution ratios of S and P in the current textbooks. And under constant temperature and constant pressure, are not affected by the amount of slag has no influence on the activity ratios of S and P between slag and metal but affects the distribution ratios of S and P. So on the condition of constant temperature and constant pressure, the desulfurization and dephophorization ability can only be measured by w((S))/a(S) and w((P))/a(P). Thus, when the activity coefficient of sulfur and phosphorus in the metal is constant, w((S))/w([S])and w((P))/w([P]) can be on behalf of desulfurization and dephosphorization ability.
黄孝山,储焰平,肖赛君,章俊
. 渣金间硫磷分配比若干理论问题的分析[J]. 中国冶金, 2016, 26(8): 28-31.
Huang Xiao-shan,CHU Yan-ping,XIAO Sai-jun,ZHANG Jun. Theoretical analysis on distribution ratio of S and P between slag. China Metallurgy, 2016, 26(8): 28-31.