RECYCLING OF SPENT POT LININGS

A process is described for the treatment of spent pot lining material from electrolyte reduction cells, this spent material having a substantial content of cryolit e. The spent material is first leached with water at a dilution and a time sufficient to dissolve substantially all water soluble fluori...

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Bibliographische Detailangaben
Hauptverfasser:	KIMMERLE, FRANK M, BERNIER, JEAN-LUC, KASIREDDY, VIJAYA
Format:	Patent
Sprache:	eng ; fre
Schlagworte:	CHEMISTRY CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION ORPROCESSING OF GOODS CONVEYING DISPOSAL OF SOLID WASTE FERROUS OR NON-FERROUS ALLOYS GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS HANDLING THIN OR FILAMENTARY MATERIAL METALLURGY PACKING PERFORMING OPERATIONS PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL PNEUMATIC TUBE CONVEYORS PRETREATMENT OF RAW MATERIALS PRODUCTION AND REFINING OF METALS RECLAMATION OF CONTAMINED SOIL SOIL SEPARATION SHOP CONVEYOR SYSTEMS STORING TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINSTCLIMATE CHANGE TRANSPORT OR STORAGE DEVICES, e.g. CONVEYORS FOR LOADING ORTIPPING TRANSPORTING TREATMENT OF ALLOYS OR NON-FERROUS METALS
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