History of electrolytic cobalt refining at Vale Canada (Inco)

CIM Journal, Vol. 6, No. 1, 2015
B. R. Conard
BRConard Consulting Inc., Oakville, Ontario, Canada
http://dx.doi.org/10.15834/cimj.2015.6
Résumé L’affinage du cobalt chez Vale Canada (anciennement Inco) a été associé à la production de nickel. Puisque certains composés de ces deux métaux comportent des risques d’effets néfastes pour la santé par exposition à l’inhalation, il est essentiel de comprendre les concentrations en aérosol des substances spécifiques ainsi que les procédés métallurgiques par lesquels ils entrent dans l’air. Vale Canada a donc décidé de décrire les historiques de ses opérations liées au nickel et de divulguer les mesures d’hygiène industrielle lorsqu’elles sont disponibles. Le présent article décrit les opérations électrolytiques effectuées sur le Co à Port Colborne, Ontario (1954–1966), et fournit des mesures de la teneur en aérosol (1995–2008) pour l’extraction électrolytique actuelle du Co.
Mots clés : Aérosols, cobalt, électroaffinage, exposition par inhalation, extraction électrolytique, Inco, nickel, purification des électrolytes
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