Thermodynamic simulation modeling of copper anode furnace refining process based on MetCal software
Based on the principle of multiphase equilibrium,process reaction mechanism and MetCal software platform,the thermodynamic simulation model and simulation system of copper anode furnace refining process were established by chemical equilibrium constant method.Under typical production conditions,the product composition and key technical indexes of oxidation and reduction periods were simulated.The results show that the relative errors of Cu,S and O elements in copper liquid during oxidation stage are 0.14%,19.29%and 47.94%,respectively,the relative errors of Cu,S and O elements in copper liquid during reduction stage are 0.16%,5.47%and 1.15%,respectively,and the calculation error of Cu in refining slag is 4.69%.The distribution ratios of Pb,Zn,As,Sb and Bi in liquid copper and crude copper during oxidation are only 2.82%,4.94%,6.24%,6.69%and 0.07%,respectively.Therefore,the established model and calculation system can reflect the actual production of copper anode furnace refining process well,and has the potential to accurately predict the refining process and optimize the process parameters,and can effectively guide the production practice of copper anode furnace refining process.
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