发明名称 |
METHOD FOR RECOVERING VALUABLE MATERIAL FROM SCRAPPED NICKEL HYDROGEN OCCLUDING ALLOY SECONDARY BATTERY |
摘要 |
<p>PURPOSE:To provide a method for recovering a valuable material from a scrapped nickel hydrogen occluding alloy secondary battery arranging a hydrogen occluding alloy at a negative electrode. CONSTITUTION:The scrapped nickel hydrogen occluding alloy secondary battery is cut into 5-20mm length under a water curtain. The cut material content capable of being made into a slurry with a ball mill or by imparting ultrasonic wave is taken out in water as the slurry. A part incapable of being made into the slurry is separated from the slurry and is offered to a steel raw material of ferronickel or the like. The slurry is further separated into a crude hydrogen occluding alloy part and a crude nickel hydroxide part by the difference of specific gravity. The crude hydrogen occluding alloy part is recovered as a hydrogen occluding alloy powder by cleaning with an organic solvent and drying. The nickel hydroxide part is chemically treated to recover a nickel compound or the like. As a result, the valuable material is efficiently and easily recovered.</p> |
申请公布号 |
JPH0820825(A) |
申请公布日期 |
1996.01.23 |
申请号 |
JP19940153643 |
申请日期 |
1994.07.05 |
申请人 |
JAPAN METALS & CHEM CO LTD |
发明人 |
SASAI KOUJI;HAYAMIZU NOBORU;NAKAMURA MASARU;KENMOCHI YOJI;HONDA JITOKU |
分类号 |
C22B7/00;H01M10/54;(IPC1-7):C22B7/00 |
主分类号 |
C22B7/00 |
代理机构 |
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代理人 |
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主权项 |
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地址 |
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