|Author||: Jianhua Chen,Zhenghe Xu,Ye Chen|
|Release Date||: 2020-04-23|
|ISBN 10||: 0128179759|
|Pages||: 396 pages|
Electronic Structure and Surfaces of Sulfide Minerals: Density Functional Theory and Applications examines the mineral structure and electronic properties of minerals and their relationship to mineral floatability by density functional theory (DFT). This pragmatic guide explores the role of minerals in flotation by focusing on the mineral surface structure, electronic properties, and the adsorption of flotation agents through the study of the microscopic mechanism of reagents from the structure and properties of minerals. The flotation mechanism is explained from the point-of-view of solid physics, which is of great significance for both theoretical research and practical applications. The study of the structure and properties of the minerals can reveal the essential nature of mineral flotation, hence why minerals have floatability, the mechanism of response of different minerals to different chemicals, and the origin of the selectivity of flotation agents. Discusses the relationship between mineral properties and floatability in terms of crystal structure, atomic coordination structure and electronic properties Covers the influence of the surface structure of the mineral on surface charge distribution, reactivity and electron density, including a quantitative calculation method for the atomic reactivity of the mineral surface Includes research on the microstructure and mechanism of reagent molecules adsorption on the surface of minerals, focusing on the interactions between water molecules, oxygen molecules and reagents
Volume 61 of Reviews in Mineralogy and Geochemistry presents an up-to-date review of sulfide mineralogy and geochemistry. The crystal structures, electrical and magnetic properties, spectroscopic studies, chemical bonding, thermochemistry, phase relations, solution chemistry, surface structure and chemistry, hydrothermal precipitation processes, sulfur isotope geochemistry and geobiology of metal sulfides are reviewed. Where it is appropriate for comparison, there is brief discussion of the selenide or telluride analogs of the metal sulfides. When discussing crystal structures and structural relationships, the sulfosalt minerals as well as the sulfides are considered in some detail.
A set of surface-sensitive analytical techniques, collectively called scanning probe microscopy (SPM), has been developed and applied to a wide variety of materials. With SPM one can image nearly any surface in vacuum, in air, or in solution, and often can actually observe surfaces during reaction. Scanning tunneling microscopy (STM) and scanning force microscopy (SFM) have been used successfully in geosciences, and this volume introduces the theory and operation of SPM to clay mineralogists, summarises previous work using STM and SFM in mineralogy, and outlines the advantages and limitations of SPM for future research applications.
Provides an overview of recent research on the environmental effects of sulfide oxidation in geochemistry and related disciplines. Features new techniques, including scanning tunneling microscopy, x-ray absorption near-edge structure (XANES) spectroscopy, and evolved gas analysis. Describes kinetics of sulfide mineral dissolution, microbiological processes, solubility of secondary minerals, and effects on groundwater and surface-water systems. Presents advances in numerical modeling, prediction of acid generation, and remediation technology for mining wastes. Includes review of stable isotope (S, O) geochemistry in sulfate from acid mine drainage and acid rain environments
This book is concerned with the theoretical principles of hydrometallurgical processes and engineering aspects. The hydrometallurgical processes of production of copper are discussed and leaching of chalcopyrite as the main sulphide mineral of copper processed in industry is used as an example. The book is suitable as a university textbook for students of metallurgy. Examines the different techniques involved Discusses the production of specific metals using hydrometalluric processes Looks at the future of hydrometallurgy
Biotechnology is defined as the evaluation and use of biological agents and materials in the production of goods and services for industry, trade and commerce. In this four-volume set there are two main divisions of the subject matter: an academic coverage of the disciplinary underpinnings of the field in Volumes 1 and 2, followed by a practical view of the various processes and products in Volumes 3 and 4. In the integration of these two areas, other common factors dealing with product quality, process economics and government policies are introduced at appropriate points throughout all four volumes. Volume 4 specifically describes various specialized services, potential applications and related government concerns. As in the other volumes, a glossary of terms and nomenclature guidelines is included to assist both the beginner and the non-specialist.
Revised and expanded second edition of the standard work on new techniques for studying solid surfaces.
|Release Date||: 2003|
|Pages||: 329 pages|