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氧化还原电位在黄铜矿生物湿法冶金中的作用及其调控:综述(英文)

发布时间:2022-09-30 16:14
  黄铜矿是一种重要的铜资源,但由于黄铜矿晶格能较高,溶解动力学较低,导致其在湿法冶金过程中浸出效率不理想。为了解决这一问题进行了一系列新技术的研究,包括对高效菌株的选育,抑制在矿物表面钝化膜的生成,以及控制溶液氧化还原电位在最佳区间内。目前,对前两个技术的研究工作已有大量的总结,而对于控制氧化还原电位这一过程的工作总结较少。本文通过研究近年来的相关工作,介绍了铜湿法冶金过程中溶液氧化还原电位的定义、作用以及对氧化还原电位的控制等相关内容。 

【文章页数】:16 页

【文章目录】:
1 Introduction
2 Definition of redox potential
3 Role of redox potential in hydrometallurgy of chalcopyrite
    3.1 Thermodynamic calculation
    3.2 Promoting formation of intermediate products
    3.3 Inhibiting formation of passivation layer
4 Maintenance of redox potential
    4.1 Using an electro-bioreactor
    4.2 Limiting oxygen concentration
    4.3 Adding different ions
    4.4 Adding chemical reagents like potassium permanganate or H2O2
    4.5 Adding ferric reductant
    4.6 Adding iron removal agent
5 Conclusions and prospect


【参考文献】:
期刊论文
[1]温度诱导相变对黄铜矿生物浸出的影响(英文)[J]. 常可欣,张雁生,张家明,李腾飞,王军,覃文庆.  Transactions of Nonferrous Metals Society of China. 2019(10)
[2]Stepwise dissolution of chalcopyrite bioleaching by thermophile A.manzaensis and mesophile L. ferriphilum[J]. 顾帼华,熊先学,胡可婷,李双棵,王重庆.  Journal of Central South University. 2015(10)
[3]Bioleaching of chalcopyrite and bornite by moderately thermophilic bacteria: an emphasis on their interactions[J]. Hong-bo Zhao,Jun Wang,Xiao-wen Gan,Wen-qing Qin,Ming-hao Hu,Guan-zhou Qiu.  International Journal of Minerals Metallurgy and Materials. 2015(08)
[4]Adsorption and leaching of chalcopyrite by Sulfolobus metallicus YN24 cultured in the distinct energy sources[J]. Yu-ting Liang,Shan Zhu,Jun Wang,Chen-bing Ai,Wen-qing Qin.  International Journal of Minerals Metallurgy and Materials. 2015(06)
[5]Control of redox potential by oxygen limitation in selective bioleaching of chalcocite and pyrite[J]. Biao Wu,Jian-Kang Wen,Bo-Wei Chen,Guo-Cheng Yao,Dian-Zuo Wang.  Rare Metals. 2014(05)
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