[PDF] Oxidation Of Sulfide Minerals In Benefication Processes eBook

Author : A Abramov
Publisher : CRC Press
Page : 336 pages
File Size : 24,69 MB
Release : 1998-01-23
Category : Science
ISBN : 9789056995706

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Results of recent experimental studies and modern theoretical concepts are combined in this volume to provide a comprehensive analysis of sulfide mineral oxidation processes. Introductory chapters discuss the properties of sulfide minerals and various investigative techniques, followed by chapters on oxidation mechanisms and the behavior of minerals under these various oxidizing conditions. This book also demonstrates modern methods of physical-chemical modelling and the regulation and optimization of flotation processes.

Author : Angelica Sarah Hunt
Publisher :
Page : 0 pages
File Size : 18,93 MB
Release : 2022
Category :
ISBN :

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The issue of iron-sulfide degradation in concrete aggregates has proven to be a major problem in concrete infrastructure, causing insufficient concrete durability and extensive structural damages which include expansion, cracking, and popouts. Over the years, there have been various reports of iron-sulfide minerals like pyrite and pyrrhotite causing oxidation reactions and leading to extensive residential concrete foundation damage in Connecticut and Quebec, Canada. In many of these cases, damages have been so serious to the structural integrity of the structures that immediate remediation has been required to repair the deterioration. The issue is not well documented despite reports of damage in the United States, Canada, and parts of Europe. Currently, there are limited existing standardized testing methods or mitigation strategies for the presence of iron-sulfide minerals in concrete aggregates because the mechanisms by which degradation occurs are not fully understood. The objective of this research is to experimentally measure the kinetics of iron-sulfide oxidation reactions in dissolution systems with oxidizing agents and analyze existing dissolution rate data available to assist in determining the factors that influence the deterioration of aggregates used in concrete infrastructure.

Author : Yuehua Hu
Publisher : Springer Science & Business Media
Page : 317 pages
File Size : 27,94 MB
Release : 2010-06-30
Category : Science
ISBN : 3540921796

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"Electrochemistry of Flotation of Sulphide Minerals" systematically covers various electrochemical measurements, especially electrochemical corrosive methods, electrochemical equilibrium calculations, surface analysis, semiconductor energy band theory as well as molecular orbital theory. Behaviour and mechanism of collectorless and collector-induced flotation of sulphide minerals in various flotation systems are also discussed. The example of electrochemical flotation separation of sulphide ores shows an industrial application. Prof. Yuehua Hu is a professor at the School of Minerals Processing & Bioengineering of Central South University and Vice Chairman of the Mineral Processing Committee of the China Nonferrous Metals Society. Dr. Wei Sun is an associate professor at the School of Minerals Processing & Bioengineering of Central South University. Prof. Dianzuo Wang is both a member of Chinese Academy of Sciences and Chinese Academy of Engineering, and a foreign associate of the National Academy of Engineering (USA).

Author : David J. Vaughan
Publisher : Walter de Gruyter GmbH & Co KG
Page : 728 pages
File Size : 18,92 MB
Release : 2018-12-17
Category : Science
ISBN : 1501509497

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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.

Author : P. Massacci
Publisher : Elsevier
Page : 821 pages
File Size : 45,6 MB
Release : 2000-07-13
Category : Science
ISBN : 0080543898

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These three volumes (Golden Nuggets) present the latest knowledge in the science and technology of mineral processing and new industry applications, related to the following topics: mineral and material characterization and liberation, comminution, classification and agglomeration, hydro and biohydrometallurgy, physical separation processing, flotation, and process simulation and control. Due to the increasing application of mineral processing techniques in waste treatment, recycling and soil remediation have received special attention. The three volumes present a selected collection of peer-reviewed papers devoted both to the theory of mineral processing (Volumes A and B) and to process design and plant application (Volume C).