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过程工程学报 ›› 2015, Vol. 15 ›› Issue (3): 424-429.DOI: 10.12034/j.issn.1009-606X.215128

• 反应与分离 • 上一篇    下一篇

铜渣氯化烟尘中铜的湿法回收

谢晓峰 李磊 王飞 蔚俊强 邱士伟 张仁杰   

  1. 冶金节能减排教育部工程研究中心 昆明理工大学冶金与能源工程学院 昆明理工大学冶金与能源工程学院 昆明理工大学冶金与能源工程学院 昆明理工大学冶金与能源工程学院 昆明理工大学冶金与能源工程学院
  • 收稿日期:2015-02-03 修回日期:2015-03-17 出版日期:2015-06-20 发布日期:2015-06-20
  • 通讯作者: 谢晓峰

Recovery of Copper from Chlorination Dust of Copper-containing Slag by Hydrometallurgical Methods

XIE Xiao-feng LI Lei WANG Fei YU Jun-qiang QIU Shi-wei ZHANG Ren-jie   

  1. Faculty of Metallurgical and Engineering, Kunming University of Science and Technology Faculty of Metallurgical and Energy Engineering, Kunming University of Science and Technology Faculty of Metallurgical and Energy Engineering, Kunming University of Science and Technology Faculty of Metallurgical and Energy Engineering, Kunming University of Science and Technology Faculty of Metallurgical and Energy Engineering, Kunming University of Science and Technology Faculty of Metallurgical and Engineering, Kunming University of Science and Technology
  • Received:2015-02-03 Revised:2015-03-17 Online:2015-06-20 Published:2015-06-20
  • Contact: XIE Xiao-feng

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被引次数

7

摘要： 采用盐酸搅拌浸出-N902萃取工艺回收铜渣氯化烟尘中的铜，考察了影响铜渣氯化烟尘浸出的主要因素. 结果表明，在盐酸浓度15%(w)、液固比4 mL/g、60℃的条件下浸出1 h，铜浸出率可达98.95%，铁、锌、镍浸出率分别达91.58%, 95.8%和93.66%，铅浸出率为5.96%. 盐酸浸出可实现铜与铅的有效分离. 萃取剂N902对浸出液中的铜具有较好的萃取选择性，振荡时间120 s、相比为1、N902浓度30%和pH=3.0的条件下，浸出液铜浓度由7.4 g/L降至0.11 g/L，回收率达98.51%，浸出液中Fe, Zn, Ni和Pb萃取率均不高于1.5%.

关键词: 铜渣, 氯化烟尘, 浸出, 萃取, N902, 铜回收

Abstract: Copper in the chlorination dust of copper-containing slag was recovered through the hydrochloric acid agitation leaching-N902 extraction process, and the main influential factors on the leaching of the chlorination dust were studied. The results show that under the conditions of 15% concentration of hydrochloric acid, ratio of liquid to solid 4 mL/g, reaction temperature 60℃ and reaction time 1 h, the leaching rate of copper is 98.95%. Meanwhile, the leaching rates of iron, nickel and zinc are 91.58%, 95.8% and 93.66%, but the leaching rate of lead is low at 5.96%. The leaching process realizes the separation of copper and lead effectively. N902 for copper extraction has good selectivity. When the mixing time, phase ratio, N902 concentration and pH value are 120 s, 1:1, 30% and 3.0 respectively, the copper concentration in the leaching solution decreases from 7.4 to 0.11 g/L, the extraction rate of copper is 98.51%, and the extraction rates of iron, nickel, zinc and lead are all lower than 1.5%.

Key words: copper slag, chlorination dust, leaching, extraction, N902, copper recovery

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