Advances in Gold Ore Processing, (Developments in Mineral Processing)

Book Description Advances in Gold Ore Processing, Volume 15 (Developments in Mineral Processing) [Hardcover]

Release Date: December 13, 2005 | ISBN-10: 0444517308 | ISBN-13: 978-0444517302 | Edition: 1

   

      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

"The book should be of great use to mineral processing engineers, metallurgists, process mineralogists, mining engineers, environmental engineers, consultants, plant managers, and students. It is certain that it will be the source book for those working in the field for decades to come. I consider this is the Book of the Year!"

Book Mineral Processing Technology Ore Treatment and Mineral Recovery

    Book Wills' Mineral Processing Technology, Seventh Edition: An Introduction to the Practical Aspects of Ore Treatment and Mineral Recovery . This comprehensive book focuses on beneficiation methods. These include crushing, grinding, comminution, froth flotation, dense medium separation, etc. Parts of this book are quantitative, and suggested Excel spreadsheet formats are provided.
    There is a relatively sophisticated introduction to the economics of metal recovery. For instance, when tin occurs within easily-accessible alluvial deposits, as little as 0.01% tin (that's a mere 100 ppm) is commercially exploitable. In contrast, when tin occurs in veins that require deep mining to reach it, a minimum level of 1.5% may be necessary to make it worth getting (p. 4).
Considering their increasing importance in recent years, there is little attention devoted to the rare earth minerals. However, the table provided on the polarity of minerals (p. 270) includes some commonly REE-bearing ones (e. g. apatite, monazite). Likewise, the table provided on the electrical behavior of minerals (p. 367) includes the same two minerals.
Virtually all mining operations involve the production of mine waste. Apropos to this, there is a helpful chapter on methods of dealing with mine tailings.

Book Description Mineral Processing Technology Ore Treatment and Mineral Recovery

Publication Date: October 27, 2006 | ISBN-10: 0750644508 | ISBN-13: 978-0750644501 | Edition: 7

Wills' Mineral Processing Technology provides practising engineers and students of mineral processing, metallurgy and mining with a review of all of the common ore-processing techniques utilized in modern processing installations.

Now in its Seventh Edition, this renowned book is a standard reference for the mineral processing industry. Chapters deal with each of the major processing techniques, and coverage includes the latest technical developments in the processing of increasingly complex refractory ores, new equipment and process routes. This new edition has been prepared by the prestigious J K Minerals Research Centre of Australia, which contributes its world-class expertise and ensures that this will continue to be the book of choice for professionals and students in this field.

This latest edition highlights the developments and the challenges facing the mineral processor, particularly with regard to the environmental problems posed in improving the efficiency of the existing processes and also in dealing with the waste created. The work is fully indexed and referenced.

• The classic mineral processing text, revised and updated by a prestigious new team
• Provides a clear exposition of the principles and practice of mineral processing, with examples taken from practice
• Covers the latest technological developments and highlights the challenges facing the mineral processor
• New sections on environmental problems, improving the efficiency of existing processes and dealing with waste. 

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The Chemistry of Gold Extraction by John Marsden

     In the gold mining mineral processing separation process valuable minerals from impurities is very important to do, which is mechanically to produce products that are rich in valuable minerals. Currently a lot of various processing techniques used to obtain the maximum results in the gold mining industry is growing very rapidly at this time. I saw some references a book about The Chemistry of Gold Extraction that maybe you can use in the learning process in the gold mining industry

    This technical reference provides the broad base of knowledge necessary for those working in gold extraction and gold processing industries. The Chemistry of Gold Extraction is an extensively revised and comprehensively updated edition of the well-known reference first published in 1992. It provides the broad base of knowledge that is now required by all those working in the gold extraction and gold processing industries. The book The Chemistry of Gold Extraction by  John Marsden bridges the gap between research and industry by emphasizing the practical applications of chemical principles and techniques.

10 world gold mining industries biggest 2012

          Based on data from the U.S. Geological Society, estimated gold ore reserves that have not been mined and available on the planet about 51,000 tons, making gold business is getting bigger. As quoted from the latest data issued by Thompson Reuters and the Metals Economics Group reported by CNBC, Monday (19/03/2012), here are 10 of the world's biggest gold mine owned by public companies. Mines is considered as the greatest because it comes from one mine alone, not the production of several mines which are then combined by a single company.

 
It's her 10 largest gold mine in the world, among others :

1. Grasberg Mine

     Grasberg is a world-class mining complex in Indonesia, where Freeport-McMoRan Copper & Gold is engaged in exploration and development, mining and milling of ore containing copper, gold and silver. The Grasberg mine is located at Tembagapura in Irian Jaya, which is Indonesia's easternmost province, on the western half of the island of New Guinea. The mine is about 60 miles north of Timika, a town of about 100,000 people. There are about two million people living in this region. The Lorentz National Park, which has several glaciers on its peaks, lies to the east of the mine. The mine is 96 km north of the southwest coast of Indonesia at elevations of 2,500 to 4,200 m above sea level. 

•  Location: Papua, Indonesia
• Gold production in 2011: 1.444.000 0z
• The area: 527,400 acres
• Miners: Freeport-McMoRan Copper & Gold
• Type of mine: open mine and underground

Extracting Gold By Carbon In Pulp with Activated Carbon

       Carbon In Pulp is the absorption of compounds into carbon Dicyano Aurrat. In the process extracting gold by carbon in pulp with activated carbon occurs after the leaching of mineral ore slurry in a tank. And during the washing, the carbon-in-leach and adsorption occur simultaneously. In both processes mineral ore leaching slurry will be transferred from one tank into the recovery tank of carbon using a pumping machine.  

This is generally accomplished by passing the slurry through a series of adsorption vessels coupled with the periodic transfer of carbon, usually associated with pulp, and in the opposite direction. Column tanks are often used consists of a large carbon column (diameter 5 to 8 feet) and 15 to 20 feet in height, and filled with activated carbon. Minimum load of carbon rule of thumb is one pound of activated carbon per 0.1 ounces of gold are present in solution, and usually it's a few pounds per 1 / 10 ounce

         Two main methods Carbon In Pulp (CIP) and Carbon Columns may consist of the most widely used technique for extracting gold today. Both methods use a large tank in the column parallel step where gold is dissolved in the slurry (pulp) through a chemical process and combine agitation, oxygen and cyanide. In CIP, the carbon is mixed with a solution of cyanide leach and ore agitated in the Tank leaching, and the adsorption process will separate the gold. 

 This will bring together between carbon and gold cyanide solution which is attached to the carbon. Granular carbon is often hard to use in a variety of sizes between 10-16 mesh. Carbon is then filtered by using the screening, on-screen screening of carbon will settle and the liquid is finely ground ore (-100 mesh) will be screened out through the screen into the tank.CIP treatment system can be described simply as a picture diagram below:

Diagram of the processing of gold with carbon in pulp