高砷酸性浸出液中回收铜的试验研究

韩光辉; 黄玉代; 王省超; 魏炎斌

doi:10.13568/j.cnki.651094.651316.2020.07.13.0001

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高砷酸性浸出液中回收铜的试验研究

化学与化工 | 更新时间：2026-01-21

- 高砷酸性浸出液中回收铜的试验研究
- 高砷酸性浸出液中回收铜的试验研究
- 新疆大学学报（自然科学版中英文） 2021年38卷第1期页码：29-36
- 作者机构：
  
  1. 新疆大学化学学院
  2. 应用化学研究所
  3. 能源材料化学教育部重点实验室
  4. 先进功能材料自治区重点实验室
- 作者简介：
- 基金信息：
  
  国家自然科学基金（21965034;U1903217）资助
- DOI：10.13568/j.cnki.651094.651316.2020.07.13.0001
  中图分类号： X758;TF811;O658.2
- 纸质出版：2021
- 稿件说明：
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[1]韩光辉,黄玉代,王省超,等.高砷酸性浸出液中回收铜的试验研究[J].新疆大学学报(自然科学版)(中英文),2021,38(01):29-36.
[1]韩光辉,黄玉代,王省超,等.高砷酸性浸出液中回收铜的试验研究[J].新疆大学学报(自然科学版)(中英文),2021,38(01):29-36. DOI： 10.13568/j.cnki.651094.651316.2020.07.13.0001.

DOI：10.13568/j.cnki.651094.651316.2020.07.13.0001.

摘要

采用市场上比较有代表性的三种醛肟类萃取剂AcorgaM5640、N902和Mextral5640H对含铜量为8.4 g/L高砷酸性废水进行萃取回收铜.通过考察三种萃取剂在不同条件下的萃取率

结合三种萃取剂的市场价格

以高效、低价的原则选择出最佳的萃取剂Mextral5640H.萃取铜的最佳条件为:室温下

萃取剂Mextral5640H的浓度为20%

水相pH=2.00～2.30

有机相与水相的相比O/A (体积比)为3:5

萃取时间40～50 s

两段萃取

萃取效率最高达到97%～99%.反萃铜的最佳条件为:室温下

有机相与4 mol/L硫酸以相比O/A=2:1反萃

萃取时间60s

一段反萃

反萃液中的铜离子浓度为24.8～25.4 g/L

反萃率达到96%～99%.由本试验可见

Mextral5640H能够达到萃取分离铜的目的

适合大规模湿法冶铜工业.

Abstract

In this paper

three representative aldoxime extractants

Acorga M5640

N902 and Mextral 5640 H

were used to extract and recycle copper from high arsenic acid leaching solution which containing 8.4 g/L copper.By examining the extraction efficiency of three extractants under different conditions and combining with the market prices of them

the best extractant of Mextral 5640 H was selected according to the principle of high efficiency and low price.The optimal conditions for copper extraction are as follows:at room temperature

the concentration of Mextral 5640 H is 20%

the pH of aqueous phase is 2.00～2.30

the O/A(volume ratio) of organic phase and aqueous phase is 3:5

the extraction time is 40～50 s

and the extraction efficiency is up to 97%～99%.The optimal conditions for reextraction of copper are as follows:at room temperature

the O/A(volume ratio) of organic phase and 4 mol/L sulfuric acid is 2:1

the reextraction time is 60 s

the copper ion concentration in the reextraction solution is 24.8～25.4 g/L

and the reextraction rate reaches 96%～99%.The results of this experimental show that the extractant of Mextral 5640 H can achieve the purpose of extraction and separation of copper

it can be suitable for large-scale wet metallurgy copper industry.

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references

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