METHOD FOR RECOVERING LITHIUM, COBALT AND OTHER METAL

• Main Author: KUME SHOICHI
• Format: Patent
• Language: English
• Published: 14.06.2012
• Subjects: BASIC ELECTRIC ELEMENTS; CHEMISTRY; CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION ORPROCESSING OF GOODS; CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO WASTEWATERTREATMENT OR WASTE MANAGEMENT; ELECTRICITY; FERROUS OR NON-FERROUS ALLOYS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; METALLURGY; PRETREATMENT OF RAW MATERIALS; PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSIONOF CHEMICAL INTO ELECTRICAL ENERGY; PRODUCTION AND REFINING OF METALS; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS; TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINSTCLIMATE CHANGE; TREATMENT OF ALLOYS OR NON-FERROUS METALS

PROBLEM TO BE SOLVED: To provide a method for recovering lithium, cobalt and the other metal from a lithium ion battery.SOLUTION: In the method for separating and recovering each metal, for the purpose of separating each metal from ores containing lithium and lithium sources, products containing lithium such as the lithium battery, and lithium compounds, or from metals and products containing lithium and aluminum, silica, kalium, cesium, rubidium or the like, a temperature in a furnace is raised in a range of 220°C or higher to 3,600°C or lower, an atmospheric gas (H2+CO) in the furnace is set to 12.8% or higher, and remaining oxygen is set to 2.4% to 0.