The Chemistry of Gold Extraction

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Author: John Marsden,Iain House

Publisher: SME

ISBN: 9780873352406

Category: Science

Page: 651

View: 1981

The Chemistry of Gold Extraction bridges the gap between research and industry by emphasizing the practical applications of chemical principles and techniques. Covering what everyone in the gold extraction and processing industries should know: Historical Developments; Ore Deposits and Process Mineralogy; Process Selection; Principles of Gold Hydrometallurgy; Oxidative Pretreatment; Leaching; Solution Purification and Concentration; Recovery; Surface Chemical Methods; Refining; Effluent Treatment; and Industrial Applications. This book is a valuable asset for all professionals involved in the precious metals industries. It will be of particular interest and use to engineers and scientists (including extraction metallurgists, mineral/metallurgical engineers, electrochemists, chemical engineers, mineral technologists, mining engineers, and material scientists), plant managers and operators, academics, educators, and students working in gold extraction in either production, research, or consulting capacities.

Chemistry of Gold Extraction

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Author: Mineekshi Awasthi

Publisher: N.A

ISBN: 9781681174761

Category:

Page: 235

View: 9499

Gold extraction or recovery from its ores may require a combination of comminution, mineral processing, hydrometallurgical, and pyrometallurgical processes to be performed on the ore. Gold mining from alluvium ores was once achieved by techniques associated with placer mining such as simple gold panning and sluicing, resulting in direct recovery of small gold nuggets and flakes. Placer mining techniques since the mid to late 20th century have generally only been the practice of artisan miners. Hydraulic mining was used widely in the Californian gold rush, and involved breaking down alluvial deposits with high-pressure jets of water. Hard rock ores have formed the basis of the majority of commercial gold recovery operations since the middle of the 20th century where open pit and or sub-surface mining techniques are used.

Chemical Hydrometallurgy

Theory and Principles

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Author: Alfred Richard Burkin

Publisher: World Scientific

ISBN: 9781860941849

Category: Technology & Engineering

Page: 414

View: 376

This book is based on the undergraduate and MSc courses in hydrometallurgy which Professor A R Burkin gave from 1961 until he retired in 1988. It is divided into two sections. The first deals with the fundamental chemical and physical principles on which the technology is based. In the second, processes which are used for the production of individual metals are described, in terms of those principles where appropriate.

Gold

Advances in Precious Metals Recovery

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Author: Nathaniel Arbiter,Kenneth N. Han

Publisher: CRC Press

ISBN: 9782881243974

Category: Technology & Engineering

Page: 232

View: 3140

The eight articles first appeared as volume 6 (no date) of Mineral processing and extractive metallurgy review. They review new methods of recovery for gold, and to some extent, silver, focus on the particular challenges of extraction from carbonaceous ores and from various sulfide-bearing ore, and the treatment of refractory gold ore, and discuss high-temperature and biological oxidation, high- temperature chlorination, and removing metals from leach liquor. Book club price, $40. Annotation copyrighted by Book News, Inc., Portland, OR

Hydrometallurgy

Fundamentals and Applications

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Author: Michael L. Free

Publisher: John Wiley & Sons

ISBN: 1118732588

Category: Technology & Engineering

Page: 444

View: 3201

As the first book to compile the fundamentals, applications, reference information and analytical tools on the topic, Hydrometallurgy presents a condensed collection of information that can be used to improve the efficiency and effectiveness with which metals are extracted, recovered, manufactured, and utilized in aqueous media in technically viable and reliable, environmentally responsible, and economically feasible ways. Suitable for students and researchers, this college-level overview addresses Fundamentals of Chemical Metallurgy in Aqueous Media, Speciation and Phase Diagrams, Rate Processes in Aqueous Metal Processing, Aqueous Metal Extraction and Leaching, Fundamentals of Metal Concentration Processes and more.

Advances in Gold Ore Processing

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Author: Mike D. Adams

Publisher: Elsevier

ISBN: 9780080459080

Category: Science

Page: 1076

View: 7907

The gold processing industry is experiencing change. As free-milling and oxide ores become depleted, more complex polymetallic and refractory ores are being processed, coupled with increasing pressure for stricter environmental compliance. Recent years have also seen a steady reduction in mineral processing and metallurgy graduates and a gradual loss of older operating experience. A contribution to documenting current and future best practice in gold ore processing seems timely. The focus of this volume is on advances in current gold plant operation, from conception to closure; chapters also cover innovations at the bench and pilot-scale level that would be expected to find commercial application at some stage. Sufficient coverage is also given to the chemistry and engineering aspects. The general principle behind the structure of the volume is that of flowsheeting based on unit operations and applied to a mineralogical classification of gold ore types. From concept to closure, this book covers all unit operations, mineralogies and processes that are relevant to dealing with today's complex orebodies. Practical experience is vital to the successful development, operation and closure of any operation. The 42 chapters have been contributed by a total of 66 authors and co-authors who are experts from countries spanning the globe, and representing exhaustive practical knowledge covering many disciplines relevant to gold processing. * Current best practice as elucidated by a select panel of experts in the field * Innovations at the bench and pilot-scale level that would be expected to find commercial application at some stage * Mineralogical-based approach to flowsheeting

Gold Metallurgy and the Environment

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Author: Sadia Ilyas,Jae-chun Lee

Publisher: CRC Press

ISBN: 1351367439

Category: Science

Page: 214

View: 6655

This book gives an overview of all the gold extraction processes along with their mechanistic study and environmental impact. Reviews extraction techniques previously employed as well as recently evolved technology for gold leaching, provides technical flow sheets for processing of ores with a diversity of lixiviants and offers a compulsory overview of every gold processing technique It also discusses recent integrated techniques including hydro- and bio-metallurgical techniques with examples

Mineral Processing and the Environment

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Author: G.P. Gallios,Kostas A. Matis

Publisher: Springer Science & Business Media

ISBN: 9401722846

Category: Science

Page: 403

View: 7126

Mineral processing technologies have been used for decades to protect the environment and many examples of such applications are given here. The book covers four major subject areas: fundamentals; environmental pollution and its prevention; separation processes; and innovative techniques. Audience: Scientists, engineers and technologists conducting both applied and basic research into the different environmental aspects of mineral processing.

Die Sisters Brothers

Roman

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Author: Patrick deWitt

Publisher: Manhattan

ISBN: 3641073642

Category: Fiction

Page: 352

View: 9466

Ein tragikomischer Roman über zwei Auftragsmörder und ihre blutige, bizarre Reise durch Amerikas Westen im Jahre 1851 Hermann Kermit Warm wird sterben. Sein Tod wurde von dem geheimnisvollen und mächtigen »Kommodore« befohlen, und die Brüder Charlie und Eli Sisters werden den Auftrag ausführen. Die beiden machen sich auf den Weg von Oregon nach Kalifornien, wo sie Warm aufspüren sollen. Ihre Reise durch den vom Goldrausch geprägten amerikanischen Westen wird allerdings immer wieder von bizarren und blutigen Begegnungen unterbrochen. Zugleich zeigt sich, wie verschieden die beiden Brüder sind: Charlie ein eiskalter, skrupelloser Killer – Eli ein Grübler, der sich mit geradezu existenziellen Fragen beschäftigt. Er beginnt an seinem Beruf zu zweifeln – und an seinem Partner. Doch als die beiden schließlich in Kalifornien eintreffen, nehmen die Ereignisse eine höchst unerwartete Wendung ...

The Chemistry of Uranium

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Author: J.J. Katz,Eugene Rabinowitch

Publisher: Рипол Классик

ISBN: 5881359666

Category: History

Page: N.A

View: 1504

Solution Mining

Leaching and Fluid Recovery of Materials

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Author: Robert W. Bartlett

Publisher: Psychology Press

ISBN: 9789056996338

Category: Technology & Engineering

Page: 443

View: 1030

First published in 1998. Routledge is an imprint of Taylor & Francis, an informa company.

Nature, Choice and Social Power

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Author: Erica Schoenberger

Publisher: Routledge

ISBN: 1135051585

Category: Business & Economics

Page: 224

View: 9201

We are at an environmental impasse. Many blame our personal choices about the things we consume and the way we live. This is only part of the problem. Different forms of social power - political, economic and ideological - structure the choices we have available. This book analyses how we make social and environmental history and why we end up where we do. Using case studies from different environmental domains – earth and water, air and fire – Nature, Choice and Social Power examines the form that social power takes and how it can harm the environment and hinder our efforts to act in our own best interests. The case studies challenge conventional wisdoms about why gold is valuable, why the internal combustion engine triumphed, and when and why suburbs sprawled. The book shows how the power of individuals, the power of classes, the power of the market and the power of the state at different times and in different ways were critical to setting us on a path to environmental degradation. It also challenges conventional wisdoms about what we need to do now. Rather than reducing consumption and shrinking from outcomes we don’t want, it proposes growing towards outcomes we do want. We invested massive resources in creating our problems; it will take equally large investments to fix them. Written in a clear and engaging style, the book is underpinned with a political economy framework and addresses how we should understand our responsibility to the environment and to each other as individuals within a large and impersonal system.

Mine Wastes

Characterization, Treatment and Environmental Impacts

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Author: Bernd Lottermoser

Publisher: Springer Science & Business Media

ISBN: 9783642124198

Category: Science

Page: 400

View: 5216

This book is not designed to be an exhaustive work on mine wastes. It aims to serve undergraduate students who wish to gain an overview and an understanding of wastes produced in the mineral industry. An introductory textbook addressing the science of such wastes is not available to students despite the importance of the mineral industry as a resource, wealth and job provider. Also, the growing imp- tance of the topics mine wastes, mine site pollution and mine site rehabilitation in universities, research organizations and industry requires a textbook suitable for undergraduate students. Until recently, undergraduate earth science courses tended to follow rather classical lines, focused on the teaching of palaeontology, cryst- lography, mineralogy, petrology, stratigraphy, sedimentology, structural geology, and ore deposit geology. However, today and in the future, earth science teachers and students also need to be familiar with other subject areas. In particular, earth science curriculums need to address land and water degradation as well as rehabili- tion issues. These topics are becoming more important to society, and an increasing number of earth science students are pursuing career paths in this sector. Mine site rehabilitation and mine waste science are examples of newly emerging disciplines. This book has arisen out of teaching mine waste science to undergraduate and graduate science students and the frustration at having no appropriate text which documents the scienti?c fundamentals of such wastes.

Mine Wastes

Characterization, Treatment and Environmental Impacts ; with 45 Tables

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Author: Bernd G. Lottermoser

Publisher: Springer Science & Business Media

ISBN: 9783540005261

Category: Science

Page: 277

View: 4485

This book provides a thorough, up-to-date overview of wastes accumulating at mine sites. It deals comprehensively with sulfidic mine wastes, mine water, tailings, cyanidation wastes of gold-silver ores, radioactive wastes of uranium ores, and wastes of phosphate and potash ores. The book emphasizes the characterization, prediction, monitoring, disposal and treatment as well as environmental impacts of problematic mine wastes.

The Chemistry of Mercury

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Author: Charles Andrew McAuliffe

Publisher: Springer

ISBN: 1349024899

Category: Science

Page: 288

View: 7045

The Chemical News and Journal of Industrial Science

With which is Incorporated the "Chemical Gazette". A Journal of Practical Chemistry in All Its Applications to Pharmacy, Arts and Manufactures

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Author: William Crookes,James H. Gardiner,Gerald Druce,H. W. Blood Ryan

Publisher: N.A

ISBN: N.A

Category: Chemistry

Page: N.A

View: 6991

Treatise on Process Metallurgy, Volume 3: Industrial Processes

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Author: N.A

Publisher: Newnes

ISBN: 0080969895

Category: Technology & Engineering

Page: 1810

View: 6729

Process metallurgy provides academics with the fundamentals of the manufacturing of metallic materials, from raw materials into finished parts or products. Coverage is divided into three volumes, entitled Process Fundamentals, encompassing process fundamentals, extractive and refining processes, and metallurgical process phenomena; Processing Phenomena, encompassing ferrous processing; non-ferrous processing; and refractory, reactive and aqueous processing of metals; and Industrial Processes, encompassing process modeling and computational tools, energy optimization, environmental aspects and industrial design. The work distils 400+ years combined academic experience from the principal editor and multidisciplinary 14-member editorial advisory board, providing the 2,608-page work with a seal of quality. The volumes will function as the process counterpart to Robert Cahn and Peter Haasen’s famous reference family, Physical Metallurgy (1996)--which excluded process metallurgy from consideration and which is currently undergoing a major revision under the editorship of David Laughlin and Kazuhiro Hono (publishing 2014). Nevertheless, process and extractive metallurgy are fields within their own right, and this work will be of interest to libraries supporting courses in the process area. Synthesizes the most pertinent contemporary developments within process metallurgy so scientists have authoritative information at their fingertips Replaces existing articles and monographs with a single complete solution, saving time for busy scientists Helps metallurgists to predict changes and consequences and create or modify whatever process is deployed