Skip to Content
Find More Like This
Return to Search

Simplified process for leaching precious metals from fuel cell membrane electrode assemblies

United States Patent

December 22, 2009
View the Complete Patent at the US Patent & Trademark Office
The membrane electrode assemblies of fuel cells are recycled to recover the catalyst precious metals from the assemblies. The assemblies are cryogenically embrittled and pulverized to form a powder. The pulverized assemblies are then mixed with a surfactant to form a paste which is contacted with an acid solution to leach precious metals from the pulverized membranes.
Shore; Lawrence (Edison, NJ), Matlin; Ramail (Berkeley Heights, NJ)
BASF Catalysts LLC (Florham Park, NJ)
11/ 844,723
August 24, 2007
GOVERNMENT INTERESTS This invention was made with Government support under Agreement DE-FC36-03GO1314 awarded by the Department of Energy. The Government has certain rights in this invention.