Download or read book Biennial Report of the Bureau of Mines of the State of Colorado for the Years written by and published by . This book was released on 1914 with total page 294 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Gold Deposits Of Georgia written by Samuel Washington McCallie and published by Legare Street Press. This book was released on 2022-10-27 with total page 0 pages. Available in PDF, EPUB and Kindle. Book excerpt: 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 The Cyanide Process of Gold Extraction written by James Park and published by . This book was released on 1913 with total page 788 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Cyanide Extraction of Gold and Silver Associated with Arsenic and Antimony in Ores written by Edmund Spriggs Leaver and published by . This book was released on 1928 with total page 62 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book The Cyanide Process of Gold Extraction written by James Park and published by . This book was released on 1897 with total page 182 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book The Cyanide Process written by A. Scheidel and published by . This book was released on 1894 with total page 182 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book The Cyanide Process of Gold Extraction written by James Park and published by Forgotten Books. This book was released on 2017-10-13 with total page 290 pages. Available in PDF, EPUB and Kindle. Book excerpt: Excerpt from The Cyanide Process of Gold Extraction: A Textbook for the Use of Mining Students, Metallurgists, and Cyanide Operators The exhaustion of the last edition has enabled the author to revise the text and add much new matter relating to recent improvements in cyanide practice in different parts of the globe. The principles underlying the treatment Of silicious silver ore carrying more or less gold is dealt with more fully than in former editions. The weak point in the present treatment of these ores is the low extraction of the silver. At the current price of silver this is perhaps not of much moment with ores in which the chief value lies in the gold contents but in the case of low-grade silver ores carrying from 1 to 3 dwt. Of gold, and from 10 to 20 oz. Of silver, per ton, the subject is one of increasing concern to the mine owner. The difference between an extraction of 50 per cent. And 85 per cent. Of the silver may represent the sole margin of profit in a low-grade venture. 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 PHYSIOGRAPHY OF WESTERN UNITED STATES written by NEVIN MELANCTHON. FENNEMAN and published by . This book was released on 2019 with total page 0 pages. Available in PDF, EPUB and Kindle. Book excerpt:
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Download or read book The Cyanide Process of Gold Extraction written by James Park and published by . This book was released on 1904 with total page 278 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..
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Download or read book Burroughs Encyclopaedia of Astounding Facts and Useful Information 1889 written by Barkham Burroughs and published by Independently Published. This book was released on 2021-01-23 with total page 446 pages. Available in PDF, EPUB and Kindle. Book excerpt: Universal Assistant and Treasure-House of Information to be Consulted on Every Question That Arises in Everyday Life by Young and Old Alike!Including: 521 Recipes * 236 Remedies * 150 Themes for Debate * How to Be Handsome * Mother Shipton's Prophesy * The Cure for Baldness * How to Distinguish Death * PLUS 20,000 Things Worth Knowing, and Much Much More.
Download or read book Cyaniding Gold and Silver Ores written by Henry Forbes Julian and published by . This book was released on 1904 with total page 478 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Cyanidation in the Mercor District of Utah written by Leland Ossian Howard and published by . This book was released on 1913 with total page 82 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Cyaniding Gold and Silver Ores written by Henry Forbes Julian and published by . This book was released on 1921 with total page 478 pages. Available in PDF, EPUB and Kindle. Book excerpt:
