砷、锑、铋、铅和锌在铜闪速熔炼过程中的行为

BEHAVIORS OF As, Sb, Bi, Pb AND Zn IN COPPER FLASH SMELTING PROCESS

利用已开发的铜熔炼过程的计算机模型，对贵溪冶炼厂的铜闪速熔炼过程进行了模拟，其预测结果与贵溪冶炼厂的实际生产数据一致。利用Ｎａｇａｍｏｒｉ的悬浮指数方程对渣中铜和硫的机械夹杂损失进行了计算，分析了铜机械损失的形态。同时，对熔炼温度进行了计算机模拟，探讨了熔炼温度对Ａｓ，Ｓｂ，Ｂｉ，Ｐｂ和Ｚｎ等的分压、活度系数及它们在冰铜、炉渣和气相中分配率的影响。

The copper flash smelting process of Guixi smelter is simulated with the newly developed computer model, obtaining the predicted results similiar to the actual production results. Losses in copper and sulfur in residue resulting from mechanical entrainment are calculated using Nagamori′s physical suspension exponential equation, and the mechanical loss form of copper is analysed. In addition, computer simulation of smelting temperature is conducted, and the influences of smelting temperature on the partial pressure, and activity coefficients of As, Sb, Bi, Pb and Zn and their distributions in matte, slag and gaseous phase are analysed. Finally, the authors discuss the importance of the results by thermodynamical analysis to its actual operation.