Patent · US Active

Method for recovering catalytic elements from fuel cell membrane electrode assemblies

US8206682B2 · kind B2 · utility

0Cited by
1References
9Claims
0Family size

Inventors

Key dates

Filing dateMay 15, 2009
Grant dateJun 26, 2012
Priority date—
Expiry dateNov 12, 2030

Classification

  • Technology area (CPC Y)Emerging Cross-Sectional Technologies
  • CPC primaryY02P10/20
  • WIPO fieldMaterials, metallurgy
  • WIPO sectorChemistry

Abstract

A method for recovering catalytic elements from a fuel cell membrane electrode assembly is provided. The method includes converting the membrane electrode assembly into a particulate material, wetting the particulate material, forming a slurry comprising the wetted particulate material and an acid leachate adapted to dissolve at least one of the catalytic elements into a soluble catalytic element salt, separating the slurry into a depleted particulate material and a supernatant containing the catalytic element salt, and washing the depleted particulate material to remove any catalytic element salt retained within pores in the depleted particulate material.

Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.