C - Chemistry – Metallurgy – 22 – B
Patent
C - Chemistry, Metallurgy
22
B
C22B 11/00 (2006.01) C22B 3/02 (2006.01) C22B 7/00 (2006.01)
Patent
CA 2697367
The membrane electrode assemblies of fuel cells are recycled by pulverizing the membrane electrode assemblies into a powder by cryo-grinding and contacting with acid to leach precious metals. Surfactants can optionally be used to increase yield of precious metals recovered.
Selon l'invention les ensembles d'électrodes à membrane de piles à combustible sont recyclés par pulvérisation des ensembles d'électrodes à membrane en une poudre par cryobroyage et mis en contact avec un acide pour lixivier les métaux précieux. Des agents tensio-actifs peuvent éventuellement être utilisés pour augmenter le rendement des métaux précieux récupérés.
Matlin Ramail
Shore Lawrence
Basf Catalysts Llc
Sim & Mcburney
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