Mathematical modeling of the deoxidation kinetics of liquid blister copper with carbon

Abstract

The mathematical description of various stages of the deoxidation kinetics of copper with charcoal is performed as applied to the reduction stage of fire refining of blister copper. It is shown that the process rate is controlled by the carbon mass transfer in the melt bulk and the reduction of oxygen contained in metal is performed according to the two-stage scheme. To intensify the copper deoxidation, it is recognized as reasonable to blow-in the finely dispersed coal immediately into the liquid metal bulk with inert or natural gas.