Title
Etude et caractrisation de carboxylates mtalliques: Application la sparation slective de mtaux (Omn.Pres.Franc.) (Fre,Used
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Laugmentation du prix des mtaux associ au cot de lenfouissement des dchets font que les industries se tournent de plus en plus vers la valorisation de leurs dchets. Le Laboratoire dElectrochimie des Matriaux a dmontr la possibilit de prcipiter slectivement les mtaux contenus dans les effluents industriels liquides en utilisant des carboxylates de sodium prpars partir dacides carboxyliques dorigine naturelle (huiles vgtales, graisses animales...). Lobtention des valeurs de solubilit des dcanoates mtalliques a permis dobtenir un diagramme de prvision de la faisabilit dune sparation entre deux cations divalents. La sparation a ensuite t applique un mlange Ni/Cd synthtique reprsentatif dune problmatique industrielle (lixiviat des batteries nickel cadmium) puis sur lixiviat rel.
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