| 从高酸浸出锌渣中回收银研究 |
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| 引用本文： | 王瑞祥,唐谟堂,唐朝波,杨声海,何静,杨建广.从高酸浸出锌渣中回收银研究[J].黄金,2008,29(9). |
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| 作者姓名： | 王瑞祥 唐谟堂 唐朝波 杨声海 何静 杨建广 |
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| 作者单位： | 1. 中南大学;江西理工大学
2. 中南大学 |
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| 基金项目： | 国家重点基础研究发展计划(973计划)，国家自然科学基金，江西省教育厅科研项目 |
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| 摘 要： | 针对某锌冶炼厂高酸浸出渣含银高的特点,采用硫酸化焙烧—水浸脱锌铁—氯化浸银—冷却结晶PbCl2—铅片置换沉银工艺,对高酸浸出锌渣进行了回收银研究。结果表明,锌和铁的浸出率分别达到92.66%和94.67%,浸出液返回炼锌主流程生产电锌;银和铅的浸出率分别达到94.17%和97.89%;用铅片置换得到粗银粉,银置换率达到99%以上。
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| 关 键 词： | 高酸浸出锌渣 硫酸化焙烧 氯化浸出 银 |
Recovery silver from zinc acid-leaching residue |
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| Wang Ruixiang,Tang Motang,Tang Chaobo,Yang Shenghai,He Jing,Yang Jianguang.Recovery silver from zinc acid-leaching residue[J].Gold,2008,29(9). |
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| Authors: | Wang Ruixiang Tang Motang Tang Chaobo Yang Shenghai He Jing Yang Jianguang |
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| Affiliation: | 1.Central South University;2.Jiangxi University of Science and Technology |
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| Abstract: | Zinc acid-leaching residue contains silver of high grade,so the process of sulphation roasting-remove zinc and iron by water leaching-chlorination leaching silver-cooling-crystallization PbCl2-cementation silver with lead is used to extracting silver from it.The results indicate that leaching rate of zinc and iron is 92.66% and 94.67% separately,leach liquor retain to main process.Leaching rate of silver and lead is 94.17% and 97.89% separately.Coarse silver powder is prepared by leadcementation and cementation rate is higher than 99%. |
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| Keywords: | zinc acid-leaching residue sulphation roasting chlorination leaching ilver |
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