Sulfur in Ladle Slag

An impressive amount of sulfide capacity measurements have been made for a variety of slag systems over the years, but the results are scattered. Allertz [2016All] used a different method with equilibrium between copper and slag. Sulfur was added as Cu2S. Different CMAS slags were then equilibrated with Cu and Cu2S under controlled oxygen partial pressures. The equilibrium sulfur contents in the copper and slag were then analyzed as shown in this example using the TCS Metal Oxide Solutions Database (TCOX).

Sulfur in ladle slag.See the caption for details.

Figure 1: Experimental obtained composition of sulfur in the slag against calculated values.

Sulfur in ladle slag.See the caption for details.

Figure 2: Experimentally obtained composition of sulfur in the metallic liquid against calculated values.

Reference

[2016All] C. Allertz, PhD. thesis, KTH Royal Institute of Technology, Stockholm, Sweden (2016).