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Development of a metal hydride electrode waste treatment process
Author(s) -
Bianco J. C.,
Martin D.,
Ansart F.,
Castillo S.
Publication year - 1999
Publication title -
aiche journal
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.958
H-Index - 167
eISSN - 1547-5905
pISSN - 0001-1541
DOI - 10.1002/aic.690451215
Subject(s) - pyrolysis , hydride , electrolysis , nickel , metal , materials science , electrode , carbon fibers , chemistry , inorganic chemistry , metallurgy , organic chemistry , electrolyte , composite material , composite number
Manufacturing residues of metal hydride electrodes for nickel–metal hydride batteries were chemically processed to recover the metal part and heat treated for the organic part. Chemical recovery yielded Ni‐Co alloy after electrolysis of the solution and hydroxides of other metals, mainly rare earths. The organic part, pyrolyzed at 700°C, led to separation between carbon and fluorinated matter. Infrared coupling at the output of the pyrolysis furnace was used to identify the pyrolysis gases.