C - Chemistry – Metallurgy – 22 – B
Patent
C - Chemistry, Metallurgy
22
B
C22B 3/06 (2006.01) C22B 1/00 (2006.01) C22B 3/26 (2006.01) C22B 11/00 (2006.01) C22B 15/00 (2006.01) C22B 23/00 (2006.01) C22B 23/02 (2006.01)
Patent
CA 2497993
The process of the present invention recovers platinum group metal(s), such as platinum and palladium, from PGM-containing materials containing base metals, such as copper and nickel. The process controls sulfur levels by using solvent extraction (306) to remove acid in the nickel recovery circuit. The acid product (326) can then be neutralized and/or recycled as desired.
Le procédé de la présente invention permet la récupération de métal/métaux faisant partie du groupe du platine (platinum group metal(s) / PGM), tels que le platine et le palladium, à partir de matière contenant ce(s) PGM et des métaux de base tels que le cuivre et le nickel. Le procédé permet de réguler les teneurs en soufre grâce à une extraction par solvant (306) qui permet de retirer l'acide dans le circuit de récupération de nickel. Le produit acide (326) peut être neutralisé et/ou recyclé selon les besoins.
Placer Dome Technical Services Limited
Sim & Mcburney
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