Effects of Copper Solvent Extraction Reagents on metabolism and Leaching Efficiency of Bioleaching Bacteria

4th International Conference on Advances in Energy Resources and Environment Engineering

能源学;生态环境科学

Zhang, Hao^1 ; Liu, Xiaorong^1^2 ; Su, Chang^1 ; Liu, Yan^1

School of Materials Science and Engineering, Shanghai Institute of Technology, Shanghai

201418, China^1

School of Environmental Science and Engineering, Donghua University, Shanghai

201620, China^2

关键词: Acidithiobacillus ferrooxidans;    Bacterial metabolism;    Biohydrometallurgy;    Copper extraction;    Copper solvent extraction;    Emulsion droplets;    Extractants;    Organic phase;   

Others  :  https://iopscience.iop.org/article/10.1088/1755-1315/237/5/052009/pdf
DOI  :  10.1088/1755-1315/237/5/052009

学科分类：环境科学（综合）

来源: IOP

【 摘 要 】

In the process of copper biohydrometallurgy, a small amount of copper extractant organic phase will remain in raffinate by entrainment of dissolving and emulsion droplets. Copper extraction organic phase can poison the bacteria and further affect the bioleaching process.The effects of organic extractants containing ketoximes and oximes on the metabolism of Acidithiobacillus ferrooxidans (A.ferrooxidans) and its bioleaching efficiency were studied. The results showed that the presence of organic phase inhibited bacterial metabolism and reduced its leaching activity.