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[1]余 洪,邢张溪,周 峰,等.H2SO4-NaCl体系下硫精矿中铜的浸出[J].武汉工程大学学报,2019,(05):466-470.[doi:10. 3969/j. issn. 1674?2869. 2019. 05. 011]
 YU Hong,XING Zhangxi,ZHOU Feng,et al.Leaching of Copper in Sulfur Concentrate with H2SO4-NaCl System[J].Journal of Wuhan Institute of Technology,2019,(05):466-470.[doi:10. 3969/j. issn. 1674?2869. 2019. 05. 011]
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H2SO4-NaCl体系下硫精矿中铜的浸出(/HTML)
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《武汉工程大学学报》[ISSN:1674-2869/CN:42-1779/TQ]

卷:
期数:
2019年05期
页码:
466-470
栏目:
材料科学与工程
出版日期:
2021-01-24

文章信息/Info

Title:
Leaching of Copper in Sulfur Concentrate with H2SO4-NaCl System
文章编号:
20190511
作者:
余 洪1邢张溪1周 峰1蔡 祥1肖林波2金艳锋2张汉泉*1
1. 武汉工程大学兴发矿业学院,湖北 武汉 430074;2. 湖北三宁化工股份有限公司,湖北 枝江 443206
Author(s):
YU Hong1XING Zhangxi1ZHOU Feng1CAI Xiang1XIAO Linbo2JIN Yanfeng2ZHANG Hanquan*1
1. Xingfa School of Mining Engineering,Wuhan Institude of Technology,Wuhan 430074,China;2. Hubei Sanning Chemical Co., Ltd,Zhijiang 443206,China
关键词:
硫精矿铜浸出H2SO4-NaCl动力学
Keywords:
sulfur concentrate copper leaching H2SO4-NaCl leaching kinetics
分类号:
TD982
DOI:
10. 3969/j. issn. 1674?2869. 2019. 05. 011
文献标志码:
A
摘要:
某硫精矿直接采用浮选或硫酸浸出均无法回收其中的铜,导致铜资源浪费,且影响精矿的再利用。采用NaCl为助浸剂,H2SO4浸出该硫精矿中的铜。探讨了助浸剂的种类、NaCl浓度、H2SO4体积分数、固液比、浸出温度、浸出时间等因素对铜浸出的影响。试验表明,在H2SO4体积分数为5%、NaCl浓度为0.5 mol/L、浸出温度为85 ℃、固液比为1∶3(g/g)时,8 h内铜的浸出率可达84.02%。动力学研究表明,在H2SO4-NaCl浸出体系下硫精矿中铜的浸出受固膜扩散控制,可以通过增加温度提高浸出剂在矿物颗粒表面的扩散速率,从而提高铜的浸出率。
Abstract:
The copper in the sulfur concentrate can not be recovered by direct flotation or sulfuric acid leaching,which results into the waste of copper resources,and affects the reuse of concentrate. NaCl was used as the additive in H2SO4 leaching system to leach copper from sulfur concentrate. The effects of leach aid,concentration of NaCl,volume fraction of H2SO4,solid-liquid ratio,leaching temperature and leaching time on copper leaching rate were investigated. The results show that the copper leaching rate is 84.02% at H2SO4 volume fraction of 5%,NaCl concentration of 0.5 mol/L,solid-liquid ratio (g/g) of 1∶3,leaching temperature of 85 ℃,and leaching time of 8 h. Kinetic studies show that the leaching of copper in the sulfur concentrate under the H2SO4-NaCl leaching system was controlled by solid film diffusion. And the diffusion rate of leaching aid on the surface of mineral particles can be improved by increasing the temperature,so as to enhance the leaching rate of copper.

参考文献/References:

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备注/Memo

备注/Memo:
收稿日期:2019-06-28基金项目:国家自然科学基金(51974204);湖北省教育厅科学技术研究项目(B2017055);武汉工程大学科学研究基金(K201735)作者简介:余 洪,博士,讲师。E-mail:yu908250@126.com*通讯作者:张汉泉,博士,教授,博士研究生导师。E-mail:springt@139.com引文格式:余洪,邢张溪,周峰,等. H2SO4-NaCl体系下硫精矿中铜的浸出[J]. 武汉工程大学学报,2019,41(5):466-470.
更新日期/Last Update: 2019-10-29