Development of a metal hydride electrode waste treatment process

✍ Scribed by J. C. Bianco; D. Martin; F. Ansart; S. Castillo

• Publisher: American Institute of Chemical Engineers
• Year: 1999
• Tongue: English
• Weight: 78 KB
• Volume: 45
• Category: Article
• ISSN: 0001-1541
• DOI: 10.1002/aic.690451215

✦ Synopsis

Manufacturing residues of metal hydride electrodes for nickel ᎐ metal hydride batteries were chemically processed to reco®er the metal part and heat treated for the organic part. Chemical reco®ery yielded Ni-Co alloy after electrolysis of the solution and hydroxides of other metals, mainly rare earths. The organic part, pyrolyzed at 700ЊC, led to separation between carbon and fluorinated matter. Infrared coupling at the output of the pyrolysis furnace was used to identify the pyrolysis gases.