Invention Grant
US07709135B2 Efficient process for previous metal recovery from cell membrane electrode assemblies 有权
从细胞膜电极组件获得先前金属回收的有效方法

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.
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