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Established Procedures And New Advances In The Extraction Of Gold Uranium And Pyrite From Witwatersrand Ores
Download Established Procedures And New Advances In The Extraction Of Gold Uranium And Pyrite From Witwatersrand Ores full books in PDF, epub, and Kindle. Read online Established Procedures And New Advances In The Extraction Of Gold Uranium And Pyrite From Witwatersrand Ores ebook anywhere anytime directly on your device. Fast Download speed and no annoying ads. We cannot guarantee that every ebooks is available!
Book Synopsis Established Procedures and New Advances in the Extraction of Gold, Uranium, and Pyrite from Witwatersrand Ores by :
Download or read book Established Procedures and New Advances in the Extraction of Gold, Uranium, and Pyrite from Witwatersrand Ores written by and published by . This book was released on 1982 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt: The evolution of basic industrial circuits for the extraction of gold, uranium, and pyrite from Witwatersrand (WWR) ores is described. Special emphasis is placed on the influence of the mineralogical composition of the ore on the choice of the various circuits that have been used for the treatment of the three major types of WWR ore: banket, carbon seam, and pyritic quartzite. The impact of recent developments in the processing of WWR ores on the basic metallurgical circuits and possible future trends in the extractive metallurgy of WWR ores are discussed.
Book Synopsis Developments in the Extraction of Gold from Witwatersrand Ores by :
Download or read book Developments in the Extraction of Gold from Witwatersrand Ores written by and published by . This book was released on 1980 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt: An account is given of the developments that have taken place in the extraction of gold from Witwatersrand ores. They are attributed to the introduction of processes for the extraction of the small amounts of uranium present in the ores; to the advances in technology resulting from scientific studies of the processes involved; and to recent sharp increases in the gold price and in working costs. Processing for uranium extraction has encouraged the use of separate high-grade and low-grade circuits, and of a 'reverse-leach' process in which acid leaching for the dissolution of uranium precedes cyanidation. Uranium extraction has also created a market for pyrite, which is used for the manufacture of sulphuric acid. The ways in which these factors benefit the extraction of gold are explained. Scientific studies and advances in technology have led, among other developments, to: an increased use of run-of-mine milling; the introduction of the carbon-in-pulp process for the adsorption of gold and electrolytic recovery of the eluted gold; the design of a wet high-intensity magnetic separator that is free from blockage by wood pulp for the recovery of gold and uranium in cyanidation residues; the development of a multi-variable mill-control system; techniques for the treatment of gravity concentrates other than amalgamation; a centrifugal mill for underground milling; and the production of gold of high purity by electrorefining. The increased price of gold has made the re-treatment of cyanidation residues profitable, and various processes have been developed for this purpose. Similarly, the higher capital and operating costs have encouraged simpler, more economical flowsheets, which involve large items of equipment and automatic sorting methods.
Download or read book Energy Research Abstracts written by and published by . This book was released on 1984 with total page 706 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Energy Research Abstracts written by and published by . This book was released on 1984 with total page 744 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Some Developments in the Extraction of Gold from Witwatersrand Ores by : P. A. Laxen
Download or read book Some Developments in the Extraction of Gold from Witwatersrand Ores written by P. A. Laxen and published by . This book was released on 1975 with total page 10 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Some Developments in Gold Extraction from Witwatersrand Ores by :
Download or read book Some Developments in Gold Extraction from Witwatersrand Ores written by and published by . This book was released on 1975 with total page 16 pages. Available in PDF, EPUB and Kindle. Book excerpt: The extraction of gold from most ores of the Witwatersrand has been consistently high - approximately 95 per cent - for many years. The present high price of gold has stimulated research and development into potential improvements of the standard procedures. The occurrence of the gold and its association with other minerals is described briefly. The Witwatersrand reefs also contain uranium and pyrite, and some of the improvements to the standard gold-extraction process are associated with the recovery or concentration of one or both of these valuable constituents. For instance, the 'reverse-leach' process - in which acid treatment for the extraction of uranium precedes cyanidation - results in improved gold extraction. Some concentration techniques used on the present residues from cyanidation offer promise in improving the overall gold recoveries. Thucholite is an important carrier of residual gold, and its recovery from some residues by flotation appears to be economically justifiable. Wet high-intensity magnetic separation has given promising results in the laboratory and on a pilot plant for the recovery of both uranium and gold from a number of cyanide tailings. The benefits of gravity concentration and of the application of empirical modelling to the gold-extraction process have been demonstrated by a mining group. Some developments in instrumentation for control during cyanidation are discussed briefly.
Book Synopsis The Chemistry of Gold Extraction by : John Marsden
Download or read book The Chemistry of Gold Extraction written by John Marsden and published by SME. This book was released on 2006 with total page 688 pages. Available in PDF, EPUB and Kindle. Book excerpt: Extensively revised and updated, this edition provides the broad base of knowledge required by all working in the gold extraction and gold processing industries. It bridges the gap between research and industry by emphasizing practical applications of chemical principles and techniques.
Book Synopsis Uranium Extraction Technology by : International Atomic Energy Agency
Download or read book Uranium Extraction Technology written by International Atomic Energy Agency and published by . This book was released on 1993 with total page 380 pages. Available in PDF, EPUB and Kindle. Book excerpt: The purpose of this publication is to update and expand the first edition, which was published in 1983, and to report on later advances in uranium ore processing. It includes background information about the principles of the unit operations used in uranium ore processing and summarizes the current state of the art. Extensive references provide sources for specific technological details.
Book Synopsis Proceedings, Twelfth Congress of the Council of Mining and Metallurgical Institutions, Johannesburg, South Africa, 3rd-7th May, 1982 by : Council of Mining and Metallurgical Institutions. Congress
Download or read book Proceedings, Twelfth Congress of the Council of Mining and Metallurgical Institutions, Johannesburg, South Africa, 3rd-7th May, 1982 written by Council of Mining and Metallurgical Institutions. Congress and published by . This book was released on 1982 with total page 576 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Journal of the South African Institute of Mining and Metallurgy by : South African Institute of Mining and Metallurgy
Download or read book Journal of the South African Institute of Mining and Metallurgy written by South African Institute of Mining and Metallurgy and published by . This book was released on 1993 with total page 200 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis S.A. Geology and Mineralogy for Metallurgists by :
Download or read book S.A. Geology and Mineralogy for Metallurgists written by and published by . This book was released on 1983 with total page 544 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis List of Unrestricted Mintek Publications Issued from 1966 to 1982 by : Helena Wilhelmina Glen
Download or read book List of Unrestricted Mintek Publications Issued from 1966 to 1982 written by Helena Wilhelmina Glen and published by . This book was released on 1983 with total page 184 pages. Available in PDF, EPUB and Kindle. Book excerpt: This publication lists the 834 unrestricted reports, 449 papers, 41 patents, and 4 other technical publications that were issued as publications of the National Institute for Metallurgy (NIM) and the Council for Mineral Technology (Mintek) from 1966 (the year of NIM's inception) to 31st December, 1982. For ease of reference, these publications are also classified under research topics. Also included are details of the periodical issued by Mintek and a list of its current miscellaneous publications, which include the annual report, and brochures and leaflets of various kinds.
Author :Australian Institute of Mining and Metallurgy. Perth and Kalgoorlie Branches. Regional Conference Publisher : ISBN 13 : Total Pages :496 pages Book Rating :4.F/5 ( download)
Book Synopsis Gold-mining, Metallurgy and Geology by : Australian Institute of Mining and Metallurgy. Perth and Kalgoorlie Branches. Regional Conference
Download or read book Gold-mining, Metallurgy and Geology written by Australian Institute of Mining and Metallurgy. Perth and Kalgoorlie Branches. Regional Conference and published by . This book was released on 1985 with total page 496 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Applied Mineralogy written by Won C. Park and published by . This book was released on 1985 with total page 708 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book INIS Atomindex written by and published by . This book was released on 1986 with total page 1352 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Advances in Uranium Ore Processing and Recovery from Non-conventional Resources by : International Atomic Energy Agency
Download or read book Advances in Uranium Ore Processing and Recovery from Non-conventional Resources written by International Atomic Energy Agency and published by Agency. This book was released on 1985 with total page 344 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Advances in Gold Ore Processing by : Mike D. Adams
Download or read book Advances in Gold Ore Processing written by Mike D. Adams and published by Elsevier. This book was released on 2005-12-02 with total page 1077 pages. Available in PDF, EPUB and Kindle. Book excerpt: 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
