Biohydrometallurgy of Chalcopyrite – Ebook PDF Instant Delivery – ISBN(s): 9780128218808,0128218800
Product details:
- ISBN-10 : 0128218800
- ISBN-13 : 978-0128218808
- Author: Hongbo Zhao, Congren Yang, Xian Zhang, Yisheng Zhang, Guanzhou Qiu
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.
Table 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
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