C - Chemistry – Metallurgy – 23 – C
Patent
C - Chemistry, Metallurgy
23
C
C23C 18/54 (2006.01) C23C 18/00 (2006.01) C23C 18/16 (2006.01)
Patent
CA 2460015
Various methods have been proposed to separate precious metal from a fluid utilized for plating. The known methods and devices are complicated and expensive. To overcome this problem, a method and a device for plating work pieces with a fluid containing at least one precious metal are provided. According to the invention the work pieces are contacted with the fluid and the fluid is filtered, after use, through at least one ceramic membrane filter in order to separate the at least one precious metal from the fluid. According to the invention a ceramic membrane filter having an exclusion pore size in excess of 10,000 Dalton is utilized.
Différents procédés ont été envisagés pour séparer le métal précieux du fluide utilisé pour effectuer des placages, mais les procédés et dispositifs connus sont complexes et onéreux. Pour résoudre ce problème, l'invention concerne un procédé et un dispositif pour réaliser des placages sur des pièces au moyen d'un fluide contenant au moins un métal précieux. Selon l'invention, les pièces sont mises en contact avec le fluide, qui est filtré après usage à travers au moins un filtre à membrane céramique, afin de séparer le métal précieux du fluide. Le filtre à membrane céramique utilisé selon l'invention a des pores de séparation de dimension supérieure à 10 000 daltons.
Hahndorf Ina
Kostouros Demitry
Atotech Deutschland Gmbh
Riches Mckenzie & Herbert Llp
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