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Biohydrometallurgy of Chalcopyrite

  • 1st Edition - July 29, 2021
  • Latest edition
  • Authors: Hongbo Zhao, Congren Yang, Xian Zhang, Yisheng Zhang, Guanzhou Qiu
  • Language: English

Bioleaching of chalcopyrite is always a challenge and research hotspot. The low copper extraction and dissolution kinetics restricted the industrial application of chalcopyrite… Read more

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Description

Bioleaching of chalcopyrite is always a challenge and research hotspot. The low copper extraction and dissolution kinetics restricted the industrial application of chalcopyrite bioleaching. To solve this problem, the dissolution process and passivation mechanism of chalcopyrite in bioleaching should be first studied, then the rate-limiting steps should be analysed explicitly, and finally the intensifying method can be put forward. Many scholars have made efforts to investigate the dissolution mechanism of chalcopyrite in bioleaching. However, there is no congruence of opinion as yet. Biohydrometallurgy of Chalcopyrite summarizes and discusses the reported research findings. In addition, this book publishes the related results found by the authors’ research. Then, the dissolution mechanism of chalcopyrite in bioleaching is interpreted. Finally, the process intensification techniques of chalcopyrite bioleaching are provided and discussed. Hence, this book provides useful reference and guidance in both laboratory research and industrial production.

Key features

  • Interprets the dissolution mechanism of chalcopyrite in bioleaching
  • Provides feasible technologies for intensifying chalcopyrite bioleaching
  • Overviews the current situations of chalcopyrite bioleaching
  • Helps the readers to deeply understand the bioleaching mechanisms of chalcopyrite
  • Provides topics for future research and potential industrial applications

Readership

Researchers and graduate students in the area of Minerals Processing and Extractive Metallurgy (including biohydrometallurgy). This book would also benefit researchers and graduate students in the other areas, such as environmental science and engineering (like solid waste treatment and disposal, AMD prevention), biological environment, biomass conversion, biodeterioration, biogeochemistry, biomineralization, microbiology, biochemistry, molecular biology, bioengineering and chemical engineering

Table of contents

1. Microorganisms used in chalcopyrite bioleaching
Overview of bioleaching microorganisms
Structure composition and functional diversity of microbial communities
Functional role of co-existing bacteria in bioleaching systems
Ecology and metabolism of sulfur- and/or iron-oxidizing Acidithiobacillus

2. Properties of chalcopyrite
Oxidation state of Cu, Fe and S element
Electronic structure
Anisotropies
Surface compositions

3. Electrochemical dissolution process of chalcopyrite
Surface species of chalcopyrite after treating by different potentials
Surface properties of chalcopyrite after treating by different potentials
Discussion of electrochemical dissolution process of chalcopyrite
The optimum range of redox potential for chalcopyrite bioleaching

4. Passivation mechanism of chalcopyrite in bioleaching
Bioleaching of chalcopyrite by sulfur-oxidizing microorganism
Bioleaching of chalcopyrite by iron-oxidizing microorganism
Bioleaching of chalcopyrite with different mineralogical properties

5. Role of gangue minerals in chalcopyrite bioleaching
Role of pyrite in chalcopyrite bioleaching
Role of bornite in chalcopyrite bioleaching
Role of sphalerite/marmatite in chalcopyrite bioleaching
Role of hematite in chalcopyrite bioleaching

6. Chalcopyrite bioleaching catalysed by silver
Bioleaching behaviour
DFT calculation on the catalytic mechanism of Ag+
Surface transformation and properties
Silver catalysed bioleaching using silver containing waste

7. Industrial bioleaching of chalcopyrite
Commercial practices examples
Key parameters/conditions
Controlling techniques

Product details

  • Edition: 1
  • Latest edition
  • Published: July 30, 2021
  • Language: English

About the authors

HZ

Hongbo Zhao

Prof. Hongbo Zhao obtained his BSc, MSc and PhD degrees from Central South University in Changsha, China. Prof. Zhao obtained his doctoral degree in Minerals Processing Engineering in 2016. From 2016.06 to 2021.08, he worked at Central South University as an associate professor. Since 2021.08, he has been working at Central South University as full professor. His research mainly focuses on mineral processing and extractive metallurgy, biohydrometallurgy/biomining. He also has rich practical experiences in the mining and metallurgical industries.

Affiliations and expertise
Associate Professor, Central South University, China

CY

Congren Yang

Prof. Congren Yang (1985. 03-) received B.Sc. (2008), M.Sc. (2011), and Ph.D. (2015) degrees in minerals processing engineering from the School of Minerals Processing and Bioengineering, Central South University (Changsha, China). His doctoral supervisor is Prof. Wenqing Qin. Prof. Yang was a postdoctoral fellow at the School of Environment of Tsinghua University (Beijing, China) in 2015.12-2018.06. Since 2018, he has been working at Central South University as an associate professor. His research interest focuses on mineral processing, hydrometallurgy, electronic waste treatment, and metals recycling and sustainability. Prof. Yang published over 20 peer-reviewed journal articles, and applied more than 1o patents.
Affiliations and expertise
Associate Professor, Central South University

XZ

Xian Zhang

Prof. Xian Zhang (1988. 11-) obtained the PhD degree in microbiology at Central South University in Changsha, China. Since 2017, he has been employed by Central South University as an associate professor. He is experienced in the field of environmental microbiology and microbial ecology. Prof. Zhang has long been devoted to the omics-based study on mineral-bioleaching microorganisms, with a specific focus on their ecological roles and metabolic functions. As of now, he as the first author/corresponding author has over 10 SCI papers that have been published in various international authoritative journals, such as BMC Genomics, Applied and Environmental Microbiology, and Frontiers in Microbiology.
Affiliations and expertise
Lab of Biohydrometallurgy, Ministry of Education, Central South University

YZ

Yisheng Zhang

Dr. Yisheng Zhang is a professor in the School of Minerals Processing & Bioengineering, Central South University, and a scientist at the Key Lab of Biohydrometallurgy of Ministry of Education, both in Changsha, Hunan, China.
Affiliations and expertise
School of Minerals Processing and Bioengineering, Central South University and Key Lab of Biohydrometallurgy of Ministry of Education, Changsha, Hunan, China

GQ

Guanzhou Qiu

Prof. Guanzhou Qiu, Scientist of Mineral Engineering, born in Guangdong Province of China. Prof. Qiu obtained his PhD degree in September of 1987 and has ever served as the vice president of Central South University for about 20 years. He was selected as the Academician of the Chinese Academy of Engineering (CAE) in 2011. Prof. Qiu mainly focus on the research of efficient and clean utilization of mineral resources. Prof. Qiu has more than 200 publications and five monographs, he has achieved four National Science and Technology Awards and two Ten Major Scientific and Technological Progress of China's Colleges and Universities. Prof. Qiu has conducted many key scientific projects, including two “973 Program” and “863 Program”. Prof. Qiu is the vice chairman of International Society for Biohydrometallurgy and was the chairman of 19th International Biohydrometallurgy Symposium (IBS).

Affiliations and expertise
Lab of Biohydrometallurgy, Ministry of Education, Central South University, China

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