| 溶剂萃取法提取电镀污泥氨浸出渣中的金属资源 |
| 摘要点击 932 全文点击 2229 投稿时间：1997-10-03 |
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| 中文关键词 萃取 铁铬渣 电镀污泥 最佳工艺参数 回收率 |
| 英文关键词 extraction iron-chromium residue plating sludge optimum operation parameters recovery rate |
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| 中文摘要 |
| 研究硫酸浸出、P507-煤油-硫酸体系萃取分离铁、钠皂-P204-煤油-硫酸体系共萃铬、铝,反萃取分离铬、铝工艺回收电镀污泥氨浸渣中的金属。通过优化实验,确定了全流程的最佳工艺参数。结果表明,铁铬渣中的金属铬、铝和铁均可以高纯度盐类形式回收,可作为化学试剂使用,回收率达95%以上。 |
| 英文摘要 |
| A solvent extraction process for valuable metals recovery from residue left ammonia carbonate leaching of plating sludge has been developed.This process include sulfuric leaching of the residue,separation of Fe3+ using PC-88A-kerosene-H2SO4 extraction system,co-extraction of Cr3+ and Al3+ using saponated D2EHPA-kerosene-H2SO4 extraction system and stripping separation of Cr3+ and Al3+.The optimum operation parameters of each unit were determined in laboratory.The results showed that the recovery rates of chromium,aluminum and iron are all more than 95%.CrCl3·6H2O,Al2(SO4)3·18H2O and FeCl3·6H2O with high purity were obtained in this process and could be used as chemical reagents. |
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