Download or read book Experimental Treatment of an Ecuador Gold Ore to Determine the Best Commercial Process for Gold Extraction written by George Bates Harrington and published by . This book was released on 1904 with total page 86 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book General Catalogue written by Massachusetts Institute of Technology and published by . This book was released on 1904 with total page 394 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Annual Catalogue written by Massachusetts Institute of Technology and published by . This book was released on 1903 with total page 1196 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book The Cyanide Process of Gold Extraction a Text Book for the Use of Metallurgists and Students at Schools of Mines Etc written by James Park and published by Theclassics.Us. This book was released on 2013-09 with total page 38 pages. Available in PDF, EPUB and Kindle. Book excerpt: This historic book may have numerous typos and missing text. Purchasers can usually download a free scanned copy of the original book (without typos) from the publisher. Not indexed. Not illustrated. 1897 edition. Excerpt: ... CHAPTER TIL LABORATORY EXPERIMENTS. The cyanide process is essentially a chemical one, and a commodious and well-equipped laboratory forms one of the most important and necessary parts of the whole plant. It is the duty of the metallurgist in charge to determine by actual experiment the lowest strength of cyanide solution to extract an adequate percentage of the gold, and also to devise means of overcoming the problems which are inseparable from the treatment of different classes and grades of ore, with so active and subtle a compound as potassium cyanide. The testing and valuing of the ores before, during, and after treatment must be entrusted to a careful and trustworthy assayer. The testing and making up of the working solutions are very simple operations, that may be left to experienced and intelligent workmen who possess a knowledge of arithmetic extending as far as decimals. With free-milling gold ores the actual working extraction will generally be as high as that obtained in the laboratory, but too much reliance must not be placed on the laboratory experiments in the case of ores containing copper or antimony. The author, s experience is that high extractions may be obtained in the laboratory from ores totally unsuited for treatment by the cyanide process on a working scale. The conditions on the one hand are theoretical, on the other actual, and before adopting the cyanide treatment for a sulphide or mineralized ore, working experiments should be made on parcels ranging from two to five tons, in order to ascei-tain the consumption of cyanide and actual extraction. If the working trials are successful the cyanide treatment may be adopted with confidence. On the other hand, in the case of an ore containing comparatively coarse..
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.
Download or read book Factory and Industrial Management written by John Robertson Dunlap and published by . This book was released on 1904 with total page 1166 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Factory and Industrial Management written by and published by . This book was released on 1903 with total page 1078 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Extraction of Gold from Carbonaceous Ores written by and published by . This book was released on 1972 with total page 28 pages. Available in PDF, EPUB and Kindle. Book excerpt: Oxidation procedures based on the chlorine-hypochlorite system were investigated for improving gold recovery from carbonaceous gold ores. The oxidation pretreatment prior to cyanidation was accomplished by (1) addition of sodium hypochlorite to ore pulp, (2) by addition of chlorine to ore pulp, and (3) by generation of hypochlorite in situ by electrolysis of a brine solution used to pulp the ore. Gold extraction of 90 pct was achieved by cyanidation of carbonaceous ore that had been pretreated with 20 lb per ton sodium hypochlorite at 50° C for 4 hours. Similarly, pretreatment of the ore pulp with 35 lb chlorine per ton at 24° to 30° C and 15 hours reaction time resulted in 89-pct gold extraction by subsequent cyaanidation. Concomitant studies showed that electrolyzing the pulp prepared with a brine solution was equally as effective as electrolyzing hypochlorite and chlorine for oxidizing carbonaceous ore constituents that are deleterious to cyanidation. Gold extraction of 90 pct was obtained by electrolysis when 275 lb of ore was treated at 200 amp for 7 hours in an 8- to 10-pct salt solution. Power consumption was in the range of 60 kwhr per ton.
Download or read book The Extraction of Gold Ore written by Cromwell Bartlett Dickey and published by Forgotten Books. This book was released on 2018-01-11 with total page 46 pages. Available in PDF, EPUB and Kindle. Book excerpt: Excerpt from The Extraction of Gold Ore: With Reference to Electrolytic Methods For each of the modes of the occurence of gold megeds have been and are continually being devised. The majority of these pro cesses are unsuccessful, yet a few are recognised as being of in tense commercial importance. For all ores not containing gold in the free state chemical methods are necessary. For high grade ores these have been successful, but it is still difficult to extract poor ores profitably unless free milling. The principal processes of commercial importance, and it is only of these we desire to treat. About the Publisher Forgotten Books publishes hundreds of thousands of rare and classic books. Find more at www.forgottenbooks.com This book is a reproduction of an important historical work. Forgotten Books uses state-of-the-art technology to digitally reconstruct the work, preserving the original format whilst repairing imperfections present in the aged copy. In rare cases, an imperfection in the original, such as a blemish or missing page, may be replicated in our edition. We do, however, repair the vast majority of imperfections successfully; any imperfections that remain are intentionally left to preserve the state of such historical works.
Download or read book Industrial Management written by and published by . This book was released on 1903 with total page 1636 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book The Extraction of Gold Ore written by Cromwell Bartlett Dickey and published by Legare Street Press. This book was released on 2023-07-18 with total page 0 pages. Available in PDF, EPUB and Kindle. Book excerpt: This classic text, first published in 1911, provides a detailed overview of the various processes involved in extracting gold from ore using electrolytic methods. Written by the noted metallurgist Cromwell Bartlett Dickey, the book is divided into several sections covering topics such as the chemistry of gold extraction, the advantages and disadvantages of different methods, and the equipment and apparatus needed for the process. With its clear, detailed explanations and expert insights, this book remains an important resource for anyone interested in the science of gold mining. This work has been selected by scholars as being culturally important, and is part of the knowledge base of civilization as we know it. This work is in the "public domain in the United States of America, and possibly other nations. Within the United States, you may freely copy and distribute this work, as no entity (individual or corporate) has a copyright on the body of the work. Scholars believe, and we concur, that this work is important enough to be preserved, reproduced, and made generally available to the public. We appreciate your support of the preservation process, and thank you for being an important part of keeping this knowledge alive and relevant.
Download or read book Testing a Gold Ore to Determine Its Treatment written by Theodore A. Edwards and published by . This book was released on 1940 with total page 58 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Treatment of an Arizona Gold Ore written by Scott D. Callaway and published by . This book was released on 1912 with total page 36 pages. Available in PDF, EPUB and Kindle. Book excerpt: "This thesis is a description of experiments preformed [sic] to determine the best scheme of treatment of a gold ore"--Leaf 1.
Download or read book Notes on the Treatment of Gold Ores written by Florence O'Driscoll and published by . This book was released on 1889 with total page 208 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Oxidation Process for Improving Gold Recovery from Carbon bearing Gold Ores written by Bernard J. Scheiner and published by . This book was released on 1971 with total page 22 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Processing Gold Ores Using Heap Leach carbon Adsorption Methods written by Harold J. Heinen and published by . This book was released on 1978 with total page 32 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Experimental Leaching of Gold from Mine Waste written by Harold J. Heinen and published by . This book was released on 1969 with total page 14 pages. Available in PDF, EPUB and Kindle. Book excerpt:
