含镍粗铜精炼过程的热力学分析

Thermodynamic Analysis for Refining Process of Raw Copper Containing Nickel

用热力学分析了氧在阳极铜精炼过程中的变化规律及氧化、还原终点应控制的杂质水平,计算了相应的氧化和还原终点应控制的氧活度范围。在阳极铜精炼试验中采用高温快速定氧技术跟踪氧的变化并指导精炼操作,成功地用含高镍和高硫的粗铜炼出表面平整,物理质量高的阳极铜板。

The behaviour of oxygen in melting copper in the refining process of anodic copper was studied by thermodynamic analysis. The level of impurity and the extent of oxygen in melting copper which must be controlled at end-point of oxidation and reduction were also evaluated by thermodynamics. A high temperature oxygen sensor was used to track the change of oxygen and to direct the refining operation during the test of refining anodic copper. The result of experiment, a smooth surface and high physical quality anodic plate was successfully got from raw copper containing high nickel and sulphur.