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Book The Effect of Free Cyanide on Gold Silver and Copper Adsorption Onto Activated Carbon from Calcine Leach Solution Using Carbon Column Techniques

Download or read book The Effect of Free Cyanide on Gold Silver and Copper Adsorption Onto Activated Carbon from Calcine Leach Solution Using Carbon Column Techniques written by K.C. Highet and published by . This book was released on 1983 with total page 176 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Book Gold Adsorption by Alkaline Charcoal

Download or read book Gold Adsorption by Alkaline Charcoal written by Paul McHeehan Horton and published by . This book was released on 1925 with total page 38 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Book Adsorption of Gold from Cyanide Solution Onto Mineral Surfaces

Download or read book Adsorption of Gold from Cyanide Solution Onto Mineral Surfaces written by and published by . This book was released on 1995 with total page 2 pages. Available in PDF, EPUB and Kindle. Book excerpt: In a typical gold recovery plant, it is estimated that as much as 0.2 grams per ton of the gold reporting to the tailings is in a form that is theoretically recoverable; however, this gold is lost. Possible causes of this phenomenon include adsorption of the gold cyanide onto carbonaceous materials or onto various minerals, insufficient leaching time, and abraded activated carbon loss. This gold loss equates to about R13 million of potential revenue to this country alone. The aim of the present work was therefore to investigate the adsorption behaviour of gold onto several pure mineral surfaces that are common in gold ores, and to extablish the presence and significance of such an effect.

Book Carbon in pulp Gold Adsorption from Cyanide Leach Slurries

Download or read book Carbon in pulp Gold Adsorption from Cyanide Leach Slurries written by Stuart J. Hussey and published by . This book was released on 1979 with total page 32 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Book Removal of Cyanide from Solution Using Activated Carbon

Download or read book Removal of Cyanide from Solution Using Activated Carbon written by and published by . This book was released on 1993 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt: The disposal of cyanide wastes from gold plants is of increasing concern, particularly in view of the current use of coarse tailings from gold-extraction plants as backfill material for the stabilization of underground stopes. Activated carbon is known to act both as an adsorbent and as a catalyst for the oxidation of cyanide. In the present study activated carbon was found to enhance the removal of cyanide, mainly as HCN, from aqueous solutions and plant tailings slurries at pH values of 7 and lower. Enhanced rates of cyanide loss from pH 10 solutions are achieved by the use of softer activated carbons, or by the use of a higher degree of attrition, which exposes freshly-cleaved carbon faces to the cyanide solution. Cyanide is removed most efficiently from alkaline solutions and pulps by use of copper impregnated activated carbon. Copper (I) and Copper (II) were found to catalyze the oxidation of cyanide by activated carbon, and also to result in an increase in cyanide adsorption capacity. The adsorbed cyanide may be recovered from the loaded carbon with dilute acid. Existing CIP or CIL flowsheets may be adapted to take advantage of these effects, resulting in a simple, effective means for the removal of the bulk of the cyanide reporting to gold-plant tailings.

Book Cyanidation of Gold silver Ore from Manhattan Nev

Download or read book Cyanidation of Gold silver Ore from Manhattan Nev written by Abraham L. Engel and published by . This book was released on 1951 with total page 14 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Book Electrodeposition of Gold and Silver from Cyanide Solutions

Download or read book Electrodeposition of Gold and Silver from Cyanide Solutions written by Samuel Benedict Christy and published by . This book was released on 1919 with total page 180 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Book Gold and Silver

Download or read book Gold and Silver written by W. Joseph Schlitt and published by . This book was released on 1981 with total page 162 pages. Available in PDF, EPUB and Kindle. Book excerpt: "The first chapter provides an overview of current leach operations while the next two examine the treatment of problem ores (carbonaceous, sulfidic and manganiferous). The next group of papers deals with heap leaching, an approach now gaining favor due to its low cost, rapid implementation and relative simplicity. These are followed by a paper on combined flotation and leaching. All these commercial leach operations utilize cyanide lixiviants and the next two chapters deal with treatment of such solutions to recover the values and avoid discharge of hazardous wastes. Use of thiourea as an alternative to cyanide is discussed in the following papers while assay methods and problems are covered in the twelfth paper. Substantive contributors by bankers, consultants and commodity traders have [also] been included in this volume."--Preface.

Book The Interaction Between Free Cyanide and Silver Impregnated Activated Carbon in a Column Configuration

Download or read book The Interaction Between Free Cyanide and Silver Impregnated Activated Carbon in a Column Configuration written by Francois Dippenaar and published by . This book was released on 2000 with total page 212 pages. Available in PDF, EPUB and Kindle. Book excerpt: