| 沉淀转化法回收酸浸渣中铅的酸溶工艺研究 |
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| 引用本文： | 张福元,卓俭进,张玉明,彭国敏.沉淀转化法回收酸浸渣中铅的酸溶工艺研究[J].无机盐工业,2013,45(11):47-49. |
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| 作者姓名： | 张福元 卓俭进 张玉明 彭国敏 |
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| 作者单位： | 河南中原黄金冶炼厂有限责任公司，河南省黄金资源综合利用重点实验室，河南三门峡 472000 |
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| 摘 要： | 以金精矿焙烧-酸浸除杂后的酸浸渣与碳酸氢铵反应生成的转化渣为原料，进行酸溶浸铅工艺研究。通过正交实验考察了液固质量比、浸出pH和浸出时间等因素对铅浸出率的影响，得到最佳工艺条件：浸出液固质量比为2∶1、浸出液pH=0.5、浸出时间为2 h。在此条件下，金属铅浸出率可达83%。
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| 关 键 词： | 酸浸渣 沉淀转化 铅 硝酸 浸出 |
Research on acid leaching process of lead from leaching residue
with precipitation transformation method |
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| Zhang Fuyuan;Zhuo Jianjin;Zhang Yuming;Peng Guomin.Research on acid leaching process of lead from leaching residue
with precipitation transformation method[J].Inorganic Chemicals Industry,2013,45(11):47-49. |
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| Authors: | Zhang Fuyuan;Zhuo Jianjin;Zhang Yuming;Peng Guomin |
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| Affiliation: | Henan Key Laboratory of Gold Resources Utilization，Henan Zhongyuan Gold Smelter Co.，Ltd.，Sanmenxia 472000，China |
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| Abstract: | With the transformation slag，prepared from the reaction of the refined acid leaching residue from gold concentrate roasting-acid leaching process with ammonium hydrogen carbonate，as the raw material，the acid leaching technology of lead was researched.Through the orthogonal experiment，the influences of various factors，such as liquid/solid mass ratio of leaching solution，pH，and leaching time，on the lead leaching rate were investigated.The optimum process conditions were obtained: liquid/solid mass ratio of leaching solution was 2∶1，pH of leaching solution was 0.5，and leaching time was 2 h.Under those conditions the metal lead leaching rate could reach 83%. |
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| Keywords: | acid leaching residue precipitation transformation lead nitric acid leaching |
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