Rio Tinto Alcan International Limited

Pierre-Jean Roy

Christian Jonville

Yannick Drouet

Christian Joinville

The invention relates to a ring furnace () having a longitudinal axis and comprising elongated bays (), a plurality of hollow partitions (') arranged within the casing of each bay so as to be parallel to the longitudinal axis, a first end transverse wall () located at a first end of each bay (), a second end transverse wall () located at a second end of each bay () and possibly one or more intermediate transverse walls () located between the first and second ends. The hollow partitions and transverse walls define baking pits () within the bays () for stacking carbonaceous articles therein. The baking pits have a length Lp and a width Wp, said length Lp being at least 15 times greater than said width Wp.

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Bilieu, France

Pierre-Jean Roy