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首页> 外文会议>International Symposium on East Asian Resources Recycling Technology（EARTH 2005); 20051109-15; Beijing(CN) >Development of Eco-Processing for Recovery of Cobalt and Lithium from the Liquor of Spent Lithium Ion Batteries
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Development of Eco-Processing for Recovery of Cobalt and Lithium from the Liquor of Spent Lithium Ion Batteries

机译：从废锂离子电池中回收钴和锂的生态工艺开发

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Scale-up leaching test proceeded to 250g/5L. Leaching conditions are as followings : 250g/5L, S/L concentration, 2M H_2SO_4, 10 vol.% H_2O_2(30%), 75℃, 300rpm, reaction time 30minutes. leaching efficiency of metal ions such as Co, Li, Fe, Ni, Al and Cu are recorved over 95%. Oxalic acid solution was added to leaching solution to recover cobalt. In the state of mole ratio of cobalt to oxalic acid changed from 1:1 to 1:4 to improve recovery efficiency of cobalt in leaching solution. In the results, Ni, Cu and Co were recovered over 90%, Li, Fe, Al is almost no reacted, The mole ratio of cobalt to oxalic acid in leaching solution controlled to 1:1 and reaction of the result to leaching efficient 50% of cobalt. But the increase of mole ratio of cobalt to oxalic acid improves recovery efficiency of cobalt in leaching solution.
机译：放大浸出试验进行到250g / 5L。浸出条件如下：250g / 5L，S / L浓度，2M H_2SO_4，10vol。％H_2O_2（30％），75℃，300rpm，反应时间30分钟。钴，锂，铁，镍，铝和铜等金属离子的浸出效率超过95％。将草酸溶液添加到浸出溶液中以回收钴。钴与草酸的摩尔比从1：1变为1：4，提高了浸出液中钴的回收率。结果表明，镍，铜和钴的回收率超过90％，锂，铁，铝几乎没有反应，浸出溶液中钴与草酸的摩尔比控制为1：1，结果对浸出的反应有效50钴的百分比。但是，钴与草酸摩尔比的增加提高了浸出液中钴的回收率。

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