废弃线路板分离富集金属和非金属的方法研究

发布时间：2018-10-10 09:56

【摘要】：采用万能高速粉碎机对废弃线路板进行破碎,采用ICP-AES分析线路板中主要金属含量,研究破碎累积时间对破碎产物以及金属铜在各粒径范围分布的影响,讨论粉末粒径大小对水力摇床分选效果的影响。结果表明,线路板中金属铜的含量达约25%;当破碎累积时间为180 s时,得到的破碎产品在0.15~1 mm粒径范围内的产率最高。采用水力摇床分选时,在0.15~1 mm粒径的粉末比较适合水力摇床分选,此粒级中铜的回收率达到98.3%以上。
[Abstract]:The waste circuit board was broken by a universal high speed pulverizer, and the main metal content in the circuit board was analyzed by ICP-AES. The effect of crushing time on the crushing product and the distribution of copper in each particle size range was studied. The effect of particle size on the separation efficiency of hydraulic rocker was discussed. The results show that the content of metal copper in the circuit board is about 25%, and when the crushing time is 180 s, the yield of the broken product is the highest in the range of 0.15 mm particle size. The powder with 0.15 mm diameter is suitable for hydraulic shaker separation, and the recovery rate of copper in this particle is over 98.3%.
【作者单位】：广西民族大学化学化工学院广西高校化学与生物转化过程新技术重点实验室;广西城投广庆环保有限公司;广西科技经济开发中心;
【基金】：广西科技开发计划项目(桂科攻1355003-1) 广西高校人才小高地:化学与生物转化过程技术创新团队资助(桂教人[2011]47号)
【分类号】：TD952;X705

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