High-speed rotary vessel that uses an ex-combustion lance. The technique of the lance and the rotation of the container provide a remarkable increase in mass transfer rates. It can be used for smelting and refining in the same container.

• - Conversion from Copper to Nickel.
• - Reductive smelting and/or flow of common metals and concentrated prices.
• - Elimination of selenium arsenic antimony and other volatile metals.

A refractory brick capable of withstanding thermal shocks, redox reactions and the chemical attack produced by the slag is needed.