| 某锰银矿富银浸出渣的硫脲浸出研究 |
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| 引用本文： | 徐本军,丁先胜,黄彩娟.某锰银矿富银浸出渣的硫脲浸出研究[J].矿冶工程,2013,33(4):88-90. |
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| 作者姓名： | 徐本军 丁先胜 黄彩娟 |
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| 作者单位： | 贵州大学 材料与冶金学院, 贵州 贵阳 550003 |
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| 摘 要： | 对云南某锰银矿采用生物质还原剂-硫酸介质下预处理, 得到的富银渣采用硫脲法进行银的富集试验研究。得出最佳试验条件为: 矿样的粒度为-0.074 mm粒级占75%左右, 浸出pH值为1.5, 硫脲用量10 kg/t, 浸出温度35 ℃, 浸出时间3 h, 浸出液固比4∶1。在最佳试验条件下银的回收率达到78%以上。硫脲法具有选择性好、无毒性等优点。
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| 关 键 词： | 锰银矿 富银渣 硫脲 浸出 |
| 收稿时间： | 2013-03-02 |
Thiourea Leaching of Silver-rich Leach Residue of Some Manganese-silver Ore |
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| XU Ben-jun,DING Xian-sheng,Huang Cai-juan.Thiourea Leaching of Silver-rich Leach Residue of Some Manganese-silver Ore[J].Mining and Metallurgical Engineering,2013,33(4):88-90. |
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| Authors: | XU Ben-jun DING Xian-sheng Huang Cai-juan |
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| Affiliation: | College of Materials and Metallurgy, Guizhou University, Guiyang 550003, Guizhou, China |
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| Abstract: | Pretreatment of Yunnan manganese-silver ore was carried out with biomass as reductant in sulfuric acid. The enrichment experiment was made on the obtained silver-rich residues using thiourea method. The optimum experimental conditions are as follows: size fraction of ore sample of 75% -0.074 mm, leaching pH value of 1.5, thiourea dosage of 10 kg/t, leaching temperature of 35 ℃, leaching time of 3 hours and leaching liquid-solid ratio of 4∶1. Under the optimal conditions, the recovery of silver reached to more than 78%. The thiourea method has the advantages of good selectivity and non-toxicity. |
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| Keywords: | manganese-silver ore silver-rich residue thiourea leaching |
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