| 铜渣氯化焙烧脱铜机理和动力学研究 |
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| 引用本文： | 李磊,王飞,蔚俊强,谢晓峰,张仁杰. 铜渣氯化焙烧脱铜机理和动力学研究[J]. 四川大学学报(自然科学版), 2016, 53(4): 875-882 |
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| 作者姓名： | 李磊 王飞 蔚俊强 谢晓峰 张仁杰 |
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| 作者单位： | 昆明理工大学复杂有色金属资源清洁利用省部共建国家重点实验室 |
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| 摘 要： | 采用氯化焙烧可有效实现铜渣中含铜、铁物相CuO和Fe3O4的选择性氯化挥发分离,氯化剂种类不同铜氯化挥发过程特异性明显.FeSO4·7H2O为添加剂,NaCl和CaCl2为氯化剂分别对CuO进行氯化焙烧时,物料失重可分为主要失水阶段、微量失水阶段和氯化失重阶段三部分,其中氯化失重部分反应属一级反应.CaCl2焙烧起始反应温度较NaCl较低为315.9℃,且其焙烧反应活化能4.826KJ/mol低于NaCl 6.001KJ/mol.影响CuO氯化挥发效果的主要因素为焙烧温度,焙烧温度1130℃、焙烧时间60min、氧气流量0.2L/min、CaCl2加入量1.6(CaCl2与铜渣质量比)和FeSO4·5H2O加入量4.42(FeSO4与铜渣质量比)条件下,焙烧物料失重率最大达62.3%,基本可实现物料中铜的氯化挥发,同时铁氯化损失率较小,可实现铜铁氧化物的选择性氯化挥发分离.
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| 关 键 词： | 铜渣；铜、铁氧化物；氯化焙烧；分离 |
| 收稿时间： | 2015-03-27 |
| 修稿时间： | 2015-05-09 |
Mechanism and kinetics study of the copper removal from copper slags |
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| LI Lei,WANG Fei,WEI Jun-Qiang,XIE Xiao-Feng and ZHANG Ren-Jie. Mechanism and kinetics study of the copper removal from copper slags[J]. Journal of Sichuan University (Natural Science Edition), 2016, 53(4): 875-882 |
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| Authors: | LI Lei WANG Fei WEI Jun-Qiang XIE Xiao-Feng ZHANG Ren-Jie |
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| Affiliation: | State Key Laboratory of Complex Nonferrous Metal Resources Clean Utilization, Engineering Research Center of Metallurgical Energy Conservation & Emission Reduction, Ministry of Education, Faculty of Metallurgical and Energy Engineering, Kunming University of Science and Technology,State Key Laboratory of Complex Nonferrous Metal Resources Clean Utilization, Engineering Research Center of Metallurgical Energy Conservation & Emission Reduction, Ministry of Education, Faculty of Metallurgical and Energy Engineering, Kunming University of Science and Technology,State Key Laboratory of Complex Nonferrous Metal Resources Clean Utilization, Engineering Research Center of Metallurgical Energy Conservation & Emission Reduction, Ministry of Education, Faculty of Metallurgical and Energy Engineering, Kunming University of Science and Technology,State Key Laboratory of Complex Nonferrous Metal Resources Clean Utilization, Engineering Research Center of Metallurgical Energy Conservation & Emission Reduction, Ministry of Education, Faculty of Metallurgical and Energy Engineering, Kunming University of Science and Technology and State Key Laboratory of Complex Nonferrous Metal Resources Clean Utilization, Engineering Research Center of Metallurgical Energy Conservation & Emission Reduction, Ministry of Education, Faculty of Metallurgical and Energy Engineering, Kunming University of Science and Technology |
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| Abstract: | |
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| Keywords: | Copper slags Copper and iron oxides Chlorination roasting Separation |
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