Efficient process for previous metal recovery from cell membrane electrode assemblies
Patent
·
OSTI ID:1176271
A method is provided for recovering a catalytic element from a fuel cell membrane electrode assembly. The method includes grinding the membrane electrode assembly into a powder, extracting the catalytic element by forming a slurry comprising the powder and an acid leachate adapted to dissolve the catalytic element into a soluble salt, and separating the slurry into a depleted powder and a supernatant containing the catalytic element salt. The depleted powder is washed to remove any catalytic element salt retained within pores in the depleted powder and the catalytic element is purified from the salt.
- Research Organization:
- BASF Corporation, Florham Park, NJ (United States)
- Sponsoring Organization:
- USDOE
- DOE Contract Number:
- FC36-03GO13104
- Assignee:
- BASF Corporation (Florham Park, NJ)
- Patent Number(s):
- 7,709,135
- Application Number:
- 12/134,394
- OSTI ID:
- 1176271
- Country of Publication:
- United States
- Language:
- English
Solubility of chlorine in aqueous hydrochloric acid solutions
|
journal | March 2005 |
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