Efficient process for previous metal recovery from cell membrane electrode assemblies
Abstract
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.
- Inventors:
- Issue Date:
- Research Org.:
- BASF Corporation, Florham Park, NJ (United States)
- Sponsoring Org.:
- USDOE
- OSTI Identifier:
- 1176271
- Patent Number(s):
- 7709135
- Application Number:
- 12/134,394
- Assignee:
- BASF Corporation (Florham Park, NJ)
- Patent Classifications (CPCs):
-
C - CHEMISTRY C22 - METALLURGY C22B - PRODUCTION AND REFINING OF METALS
H - ELECTRICITY H01 - BASIC ELECTRIC ELEMENTS H01M - PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
- DOE Contract Number:
- FC36-03GO13104
- Resource Type:
- Patent
- Resource Relation:
- Patent File Date: 2008 Jun 06
- Country of Publication:
- United States
- Language:
- English
- Subject:
- 37 INORGANIC, ORGANIC, PHYSICAL, AND ANALYTICAL CHEMISTRY
Citation Formats
Shore, Lawrence, Matlin, Ramail, and Heinz, Robert. Efficient process for previous metal recovery from cell membrane electrode assemblies. United States: N. p., 2010.
Web.
Shore, Lawrence, Matlin, Ramail, & Heinz, Robert. Efficient process for previous metal recovery from cell membrane electrode assemblies. United States.
Shore, Lawrence, Matlin, Ramail, and Heinz, Robert. Tue .
"Efficient process for previous metal recovery from cell membrane electrode assemblies". United States. https://www.osti.gov/servlets/purl/1176271.
@article{osti_1176271,
title = {Efficient process for previous metal recovery from cell membrane electrode assemblies},
author = {Shore, Lawrence and Matlin, Ramail and Heinz, Robert},
abstractNote = {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.},
doi = {},
journal = {},
number = ,
volume = ,
place = {United States},
year = {2010},
month = {5}
}
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- Alkan, M.; Oktay, M.; Kocakerim, M.
- Journal of Hazardous Materials, Vol. 119, Issue 1-3