| 刚果(金)水钴矿高压酸浸实验研究 |
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| 引用本文： | 郭秋松,朱薇,刘志强.刚果(金)水钴矿高压酸浸实验研究[J].矿冶工程,2015,35(5):107-109. |
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| 作者姓名： | 郭秋松 朱薇 刘志强 |
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| 作者单位： | 1.广东省工业技术研究院(广州有色金属研究院), 广东 广州 510650;
2.广东省稀土开发及应用重点实验室, 广东 广州 510650 |
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| 基金项目： | 广东省科技计划项目(2012B010500023) |
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| 摘 要： | 以刚果(金)水钴矿为原料, 对其焙烧预处理后, 采用高压酸浸方法获取浸出液, 考察了硫酸浓度、液固比、浸出时间等因素对浸出过程中主元素及杂质元素浸出率的影响。研究结果表明:在硫酸浓度为0.2 mol/L、液固比为10∶1、浸出时间180 min的条件下, 经高压浸出最终可获得钴、铜、镍、铁和镁浸出率分别为92.8%、96.7%、95.3%、2.3%和2.5%的浸出后液, 较好实现了原料中高价值元素的高效回收以及与杂质铁、镁的初步分离。
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| 关 键 词： | 水钴矿 高压酸浸 钴 铜 镍 浸出率 |
| 收稿时间： | 2015-04-03 |
Test of High-pressure Acid Leaching of Congo( Kinshasa) Heterogenite |
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| GUO Qiu-song,ZHU Wei,LIU Zhi-qiang.Test of High-pressure Acid Leaching of Congo( Kinshasa) Heterogenite[J].Mining and Metallurgical Engineering,2015,35(5):107-109. |
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| Authors: | GUO Qiu-song ZHU Wei LIU Zhi-qiang |
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| Affiliation: | 1.Guangdong General Research Institute of Industrial Technology(Guangzhou Research Institute of Non-ferrous Metals), Guangzhou 510650, Guangdong, China;
2.Guangdong Province Key Laboratory of Rare Earth Development and Application, Guangzhou 510650, Guangdong, China |
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| Abstract: | The Congo(Kinshasa) heterogenite pretreated by roasting was taken in the test of high-pressure acid leaching to obtain leaching solution, for investigating influences of sulfuric acid concentration, liquid-solid ratio and leaching time on the leaching rates of valuable elements and impurity elements. The results shows that with sulfuric acid concentration at 0.2 mol/L, liquid-solid ratio of 10∶1 and leaching time of 180 min, the leaching rates of cobalt, copper, nickel, iron and magnesium reach to 92.8%, 96.7%, 95.3%, 2.3% and 2.5%, respectively. The high-pressure acid leaching can realize efficient recovery of valuable elements and their preliminary separation from impurity elements such as iron and magnesium. |
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| Keywords: | heterogenite high-pressure acid leaching cobalt copper nickel leaching rate |
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