高级搜索

直接还原法回收铜渣中铁、铜和锌的热力学

,  ,  ,  , 

downloadPDF

上一篇

下一篇

赵凯, 宫晓然, 李杰, 刘卫星, 邢宏伟. 直接还原法回收铜渣中铁、铜和锌的热力学[J]. 环境工程学报, 2016, 10(5): 2638-2646. doi: 10.12030/j.cjee.201412190
引用本文: 赵凯, 宫晓然, 李杰, 刘卫星, 邢宏伟. 直接还原法回收铜渣中铁、铜和锌的热力学[J]. 环境工程学报, 2016, 10(5): 2638-2646. doi: 10.12030/j.cjee.201412190
shu
Zhao Kai, Gong Xiaoran, Li Jie, Liu Weixing, Xing Hongwei. Thermodynamics of recovering iron, copper, zinc in copper slag by direct reduction method[J]. Chinese Journal of Environmental Engineering, 2016, 10(5): 2638-2646. doi: 10.12030/j.cjee.201412190
Citation: Zhao Kai, Gong Xiaoran, Li Jie, Liu Weixing, Xing Hongwei. Thermodynamics of recovering iron, copper, zinc in copper slag by direct reduction method[J]. Chinese Journal of Environmental Engineering, 2016, 10(5): 2638-2646. doi: 10.12030/j.cjee.201412190
shu

直接还原法回收铜渣中铁、铜和锌的热力学

  • 1.

    华北理工大学冶金与能源学院, 唐山 063009

  • 基金项目:

    河北省自然科学基金-钢铁联合基金资助项目(E2014209113)

    唐山市科技计划项目(14110208a)

  • 中图分类号: X705

Thermodynamics of recovering iron, copper, zinc in copper slag by direct reduction method

  • 1.

    Eollege of Metallurgy and Energy, North China University of Science and Technology, Tangshan 063009, China

  • Fund Project:

HTML全文

  • 摘要: 为了实现铜渣中的铁与硅及其他元素分离,提出了含碳球团-转底炉直接还原工艺综合回收铜渣中的铁、铜和锌等有价元素,首先对水淬铜渣配碳还原进行了热力学分析,然后采用FactSage热力学计算软件中的Equilib模块对碳热还原过程进行了理论计算,研究了温度、碱度和配碳量等工艺参数,对水淬铜渣碳热还原产物组成及收得率的影响。计算结果表明:Fe的收得率主要受温度的影响较大,碱度的影响不大,配碳量有一定影响,铁的收得率最高可以达到91%以上;Zn的收得率主要受温度的影响较大,900 ℃左右达到最大;Cu的收得率最高可达99%,并且受上述因素的影响相对小。为了保证铁的收得率,建议优化的工艺条件为:配碳量(C/O比)大于1.2、还原温度大于1 200 ℃、碱度大于0.6。
    Abstract: In order to achieve the separation of iron, silicon, and other elements in copper slag, a method of comprehensive recovery of valuable elements such as iron, copper, and zinc in copper slag, which uses a direct reduction of carbon pellet rotary hearth furnace process, will be proposed. First, carbon reduction thermodynamic analysis on granulated copper slag was carried out, and then carbon thermal reduction process theoretical calculations from FactSage thermodynamic calculation software module Equilib were used in order to discuss the impacts of temperature, basicity, carbon content, and other process parameters on the water quenching carbothermic reduction composition of products and recycle rate. The results showed that the recycle rate of iron was mainly affected by the temperature, while basicity had little effect and carbon content had a certain influence; the highest recycle rate was 91%. The recycle rate of zinc was mainly affected by temperature, and was maximized at approximately 900 ℃. The highest recycle rate of copper was 99%, and the effects of the above factors were relatively small. In order to ensure that the recycle rate of iron is achieved, optimization of the process conditions is recommended; the carbon content (C/O ratio) should be more than 1.2, the reduction temperature should be higher than 1 200 ℃, and the basicity should be greater than 0.6.
  • [1] 汤宏. 铜渣选矿实验的探讨. 有色矿山, 2001, 30(5): 38-40 Tang Hong. Discussion on concentrating test of copper cinder. Nonferrous Mines, 2001, 30(5): 38-40(in Chinese)
    [2] 陈知若. 粗铜熔炼技术改造. 有色冶炼, 1992(3): 28-37 Chen Zhiruo. Blister copper smelting technology reform. Nonferrous Smelting, 1992(3): 28-37(in Chinese)
    [3] 陈远望. 智利铜炉渣贫化方法概述. 世界有色金属, 2001(9): 53-58 Chen Yuanwang. Cleaning of copper smelting slag in Chile. World Nonferrous Metals, 2001(9): 53-58(in Chinese)
    [4] Banda W., Morgan N., Eksteen J. J. The role of slag modifiers on the selective recovery of cobalt and copper from waste smelter slag. Minerals Engineering, 2002, 15(11): 899-907
    [5] 张林楠, 张力, 王明玉, 等. 铜渣的处理与资源化. 矿产综合利用, 2005(5): 22-27 Zhang Linnan, Zhang Li, Wang Mingyu, et al. Treatment and resourceful disposal of copper slag. Multipurpose Utilization of Mineral Resources, 2005(5): 22-27(in Chinese)
    [6] 吴礼杰. 转炉渣中有价金属的选别. 矿业研究与开发, 2001, 21(4): 29-31 Wu Lijie. Selective recovery of valuable metals from rotary furnace slag. Mining R & D, 2001, 21(4): 29-31(in Chinese)
    [7] Banza A. N., Gock E., Kongolo K. Base metals recovery from copper smelter slag by oxidising leaching and solvent extraction. Hydrometallurgy, 2002, 67(1-3): 63-69
    [8] 王珩. 炼铜转炉渣中铜铁的选矿研究. 有色矿山, 2003, 32(4): 19-23 Wang Heng. Study on copper and iron concentrating from coverter slag of copper smelting. Nonferrous Mines, 2003, 32(4): 19-23(in Chinese)
    [9] 孙培梅, 魏岱金, 李洪桂, 等. 铜渣氯浸渣中有价元素分离富集工艺. 中南大学学报(自然科学版), 2005, 36(1): 38-43 Sun Peimei, Wei Daijin, Li Honggui, et al. Separation and enrichment of valuable elements from copper residue leached by chlorine. Journal of Central South University (Science and Technology), 2005, 36(1): 38-43(in Chinese)
    [10] 秦洁. 含碳球团转底炉直接还原的关键技术. 钢铁研究, 2012, 40(5): 55-59 Qin Jie. Study on key technologies of rotary hearth furnace for direct reduction process to deal with carbon containing pellet. Research on Iron and Steel, 2012, 40(5): 55-59(in Chinese)
    [11] 伦志刚, 胡途, 吕学伟. 多层含碳球团转底炉内直接还原行为. 钢铁, 2013, 48(1): 15-19 Lun Zhigang, Hu Tu, Lü Xuewei. Direct reduction behavior of multi-layer pellets with carbon-containing in rotary hearth furnace. Iron and Steel, 2013, 48(1): 15-19(in Chinese)
    [12] 曹战民, 宋晓艳, 乔芝郁. 热力学模拟计算软件FactSage及其应用. 稀有金属, 2008, 32(2): 216-219 Cao Zhanmin, Song Xiaoyan, Qiao Zhiyu. Thermodynamic modeling software FactSage and its application. Chinese Journal of Rare Metals, 2008, 32(2): 216-219(in Chinese)
    [13] 梅贤功, 孙宗毅, 陈荩. 高铁赤泥煤基直接还原过程中固相反应的热力学分析. 轻金属, 1994(7): 8-12 Mei Xiangong, Sun Zongyi, Chen Jin. Thermodynamic analysis of solid state reaction in high iron red mud coal-based direct reduction process. Light Metals, 1994(7): 8-12(in Chinese)
    [14] 曹新鑫, 胡蕾阳, 樊斌斌, 等. 五水硫酸铜脱水机理及硫酸铜高温分解的热力学研究. 精细与专用化学品, 2011, 19(6): 30-32 Cao Xinxin, Hu Leiyang, Fan Binbin, et al. The study of thermodynamics on the dehydration mechanism of CuSO4·5H2O and the heat decomposition of CuSO4. Fine and Specialty Chemicals, 2011, 19(6): 30-32(in Chinese)
    [15] Hara Y. S. R. Mineral sulphide-lime reactions and effect of CaO/C mole ratio during carbothermic reduction of complex mineral sulphides. International Journal of Minerals, Metallurgy, and Materials, 2014, 21(1): 1-11
    [16] 徐采栋, 林蓉, 汪大成. 锌冶金物理化学. 上海: 上海科学技术出版社, 1979: 40-66, 143-150
    [17] 张芳, 李荣, 安胜利, 等. Zn在高炉中热力学行为研究. 内蒙古科技大学学报, 2012, 31(3): 213-217 Zhang Fang, Li Rong, An Shengli, et al. Thermodynamic behavior of zinc in blast furnace. Journal of Inner Mongolia University of Science and Technology, 2012, 31(3): 213-217(in Chinese)
  • 加载中
WeChat 点击查看大图
计量
  • 文章访问数:  1922
  • HTML全文浏览数:  1523
  • PDF下载数:  268
  • 施引文献:  0
出版历程
  • 收稿日期:  2015-02-26
  • 刊出日期:  2016-06-03
赵凯, 宫晓然, 李杰, 刘卫星, 邢宏伟. 直接还原法回收铜渣中铁、铜和锌的热力学[J]. 环境工程学报, 2016, 10(5): 2638-2646. doi: 10.12030/j.cjee.201412190
引用本文: 赵凯, 宫晓然, 李杰, 刘卫星, 邢宏伟. 直接还原法回收铜渣中铁、铜和锌的热力学[J]. 环境工程学报, 2016, 10(5): 2638-2646. doi: 10.12030/j.cjee.201412190
shu
Zhao Kai, Gong Xiaoran, Li Jie, Liu Weixing, Xing Hongwei. Thermodynamics of recovering iron, copper, zinc in copper slag by direct reduction method[J]. Chinese Journal of Environmental Engineering, 2016, 10(5): 2638-2646. doi: 10.12030/j.cjee.201412190
Citation: Zhao Kai, Gong Xiaoran, Li Jie, Liu Weixing, Xing Hongwei. Thermodynamics of recovering iron, copper, zinc in copper slag by direct reduction method[J]. Chinese Journal of Environmental Engineering, 2016, 10(5): 2638-2646. doi: 10.12030/j.cjee.201412190
shu

直接还原法回收铜渣中铁、铜和锌的热力学

  • 1. 华北理工大学冶金与能源学院, 唐山 063009
  • 收稿日期:  2015-02-26
基金项目:

河北省自然科学基金-钢铁联合基金资助项目(E2014209113)

唐山市科技计划项目(14110208a)

摘要: 为了实现铜渣中的铁与硅及其他元素分离,提出了含碳球团-转底炉直接还原工艺综合回收铜渣中的铁、铜和锌等有价元素,首先对水淬铜渣配碳还原进行了热力学分析,然后采用FactSage热力学计算软件中的Equilib模块对碳热还原过程进行了理论计算,研究了温度、碱度和配碳量等工艺参数,对水淬铜渣碳热还原产物组成及收得率的影响。计算结果表明:Fe的收得率主要受温度的影响较大,碱度的影响不大,配碳量有一定影响,铁的收得率最高可以达到91%以上;Zn的收得率主要受温度的影响较大,900 ℃左右达到最大;Cu的收得率最高可达99%,并且受上述因素的影响相对小。为了保证铁的收得率,建议优化的工艺条件为:配碳量(C/O比)大于1.2、还原温度大于1 200 ℃、碱度大于0.6。

English Abstract

    全文HTML

参考文献 (17)

返回顶部

目录

/

返回文章
返回

Copyright © 2019 中国科学院生态环境研究中心