Rio Tinto Alcan International Limited

Alain Larouche

Guy Peloquin

Alain Boivin

Guy Simard

Matthieu St-Laurent

Régis Girard

Regis Girard

An apparatus for refining a process liquor that includes solids, which apparatus includes a vessel having a base and a side wall that define an internal volume for containing the process liquor and for allowing gravity settling of the solids in the liquor, whereby to produce a refined liquor toward a top of the internal volume and a slurry toward a bottom of the internal volume, the apparatus further includes solids displacement elements disposed within the internal volume for directing settled solids and/or settling solids in the vicinity of the side wall or of the base toward a flow path of the slurry being extracted from the slurry outlet. A processing plant including the above refining apparatus and a method for refining a process liquor.

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Jonquière, Canada

Alain Larouche