IMPROVED DEVICES AND METHOD FOR SMELTERLESS RECYCLING OF LEAD ACID BATTERIES

Lead from lead acid battery scrap is recovered in two separate production streams as clean grid lead and as high-purity lead without smelting. In preferred aspects, lead recovery is performed in a continuous process that uses an aqueous electroprocessing solvent and electro- refining. Spent electrop...

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Bibliographische Detailangaben
Hauptverfasser:	KING, MICHAEL JOHN, HURWITZ, MICHAEL DAVID, CLARKE, STEPHEN R, CLARKE, ROBERT LEWIS, DOUGHERTY, BRIAN
Format:	Patent
Sprache:	eng ; fre
Schlagworte:	APPARATUS THEREFOR BASIC ELECTRIC ELEMENTS CHEMISTRY ELECTRICITY ELECTROLYTIC OR ELECTROPHORETIC PROCESSES FERROUS OR NON-FERROUS ALLOYS METALLURGY PRETREATMENT OF RAW MATERIALS PROCESSES FOR THE ELECTROLYTIC PRODUCTION, RECOVERY ORREFINING OF METALS PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSIONOF CHEMICAL INTO ELECTRICAL ENERGY PRODUCTION AND REFINING OF METALS TREATMENT OF ALLOYS OR NON-FERROUS METALS
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Beschreibung
Zusammenfassung:	Lead from lead acid battery scrap is recovered in two separate production streams as clean grid lead and as high-purity lead without smelting. In preferred aspects, lead recovery is performed in a continuous process that uses an aqueous electroprocessing solvent and electro- refining. Spent electroprocessing solvent and/or base utilized to treat lead paste from the lead acid battery scrap can be recycled to the recovery process. Le plomb des batteries au plomb-acide usées est récupéré dans deux flux de production distincts comme plomb en grille propre et comme plomb de grande pureté sans fusion. Selon des aspects privilégiés, la récupération du plomb s'effectue dans un procédé continu qui utilise un solvant d'électrotraitement aqueux et l'électroaffinage. Le solvant d'électrotraitement usé et/ou la base utilisés pour traiter la pâte de plomb des batteries au plomb-acide usées peuvent être recyclés dans le procédé de récupération.