ENERGY-EFFICIENT PYROMETALLURGICAL PROCESS FOR TREATING LI-ION BATTERIES

The present disclosure concerns a 2-step smelting process, for recovering of Ni and Co from batteries and other sources.The process comprises the steps of:defining an oxidizing level Ox, and a battery-bearing metallurgical charge;oxidizing smelting of the metallurgical charge by injecting an O2-bear...

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Bibliographische Detailangaben
1. Verfasser:	SCHEUNIS, Lennart
Format:	Patent
Sprache:	eng ; fre ; ger
Schlagworte:	BASIC ELECTRIC ELEMENTS CHEMISTRY ELECTRICITY FERROUS OR NON-FERROUS ALLOYS METALLURGY METALLURGY OF IRON PRETREATMENT OF RAW MATERIALS PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSIONOF CHEMICAL INTO ELECTRICAL ENERGY PROCESSING OF PIG-IRON, e.g. REFINING, MANUFACTURE OFWROUGHT-IRON OR STEEL PRODUCTION AND REFINING OF METALS TREATMENT IN MOLTEN STATE OF FERROUS ALLOYS TREATMENT OF ALLOYS OR NON-FERROUS METALS
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Beschreibung
Zusammenfassung:	The present disclosure concerns a 2-step smelting process, for recovering of Ni and Co from batteries and other sources.The process comprises the steps of:defining an oxidizing level Ox, and a battery-bearing metallurgical charge;oxidizing smelting of the metallurgical charge by injecting an O2-bearing gas into the melt to reach the defined oxidizing level Ox; and,reducing smelting of the obtained slag using a heat source and a reducing agent.The process is more energy-efficient than a single-step reducing smelting process and provides for a higher purity alloy and for a cleaner final slag.