Recovering Precious Metals
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Author | : C.W. Ammen |
Publisher | : Springer |
Total Pages | : 0 |
Release | : 1997-07-31 |
Genre | : Science |
ISBN | : 9780412720604 |
This book is the product of 50+ years of hands-on physiochemical work with both ferrous and nonferrous metals and with the metallurgy of refining, extracting, and casting. Its purpose is to cover the various methods of recovery and refining of precious metals. Both primary sources (placer gold, black sand, and ores) and secondary sources (scrap jewelry, electronic scrap, old films, buffings, spent plating and stripping solutions, catalytic automobile converters, and old eyeglass frames) are covered. The information contained in this volume is very basic and is intended for hands-on application and use. It is for nonchemist and chemist alike. I will not discuss the mathematical formulas for the various chemical reactions that take place-I leave them to the reader who wants to increase his working knowledge and understanding of chemistry. There are many courses offered in chemistry and extractive metallurgy, as well as a number of books available for self-study. The purpose of this book is to teach you how to perform various extractive, refining, and testing operations on precious metals (in various forms and states), with a resulting end product. You will learn how to perform operations in assaying and extraction, qualitative analysis, quantitative analysis, testing, classifying, and concentration-some of a purely mechanical nature, some of a chemical nature.
Author | : Raymond O. Dannenberg |
Publisher | : |
Total Pages | : 28 |
Release | : 1972 |
Genre | : Copper |
ISBN | : |
Author | : Calm Morrison Hoke |
Publisher | : |
Total Pages | : 362 |
Release | : 1978 |
Genre | : Metallurgy |
ISBN | : |
Author | : United States. Defense Property Disposal Service |
Publisher | : |
Total Pages | : 828 |
Release | : 1976 |
Genre | : Precious metals |
ISBN | : |
Author | : George Edward Gee |
Publisher | : |
Total Pages | : 396 |
Release | : 1920 |
Genre | : Precious metals |
ISBN | : |
Author | : C. W. Ammen |
Publisher | : |
Total Pages | : 441 |
Release | : 1997 |
Genre | : Precious metals |
ISBN | : |
Author | : |
Publisher | : |
Total Pages | : 68 |
Release | : 1985 |
Genre | : Precious metals |
ISBN | : |
This information circular describes research the Bureau of Mines has conducted to improve technology for recovering precious metals from low-grade resources. Many of the reported findings are recent, and some of te work described is ongoing. Topics discussed include cyanidation of carbonaceous gold ores to enhance gold recovery, a new method for precipitating mercury during cyanide leaching of gold ores, a staged heap leaching process to generate suitable solutions for direct electrowinning of gold, the use of anion-exchange resins to recover gold from cyanide solutions, and precious metals recovery from electronic scrap.
Author | : H. B. Salisbury |
Publisher | : |
Total Pages | : 628 |
Release | : 1981 |
Genre | : Copper |
ISBN | : |
Author | : Nathaniel Arbiter |
Publisher | : CRC Press |
Total Pages | : 242 |
Release | : 1990 |
Genre | : Business & Economics |
ISBN | : 9782881243974 |
The eight articles first appeared as volume 6 (no date) of Mineral processing and extractive metallurgy review. They review new methods of recovery for gold, and to some extent, silver, focus on the particular challenges of extraction from carbonaceous ores and from various sulfide-bearing ore, and the treatment of refractory gold ore, and discuss high-temperature and biological oxidation, high- temperature chlorination, and removing metals from leach liquor. Book club price, $40. Annotation copyrighted by Book News, Inc., Portland, OR
Author | : Syed Sabir |
Publisher | : World Scientific |
Total Pages | : 236 |
Release | : 2016-06-29 |
Genre | : Science |
ISBN | : 178326991X |
New discoveries of the properties of gold at a nanoscale, and its effective use in modern technologies, have been driving a virtual 'gold rush'. Depleting natural resources has meant that the recovery of gold continues to grow in importance and relevance.The Recovery of Gold from Secondary Sources analyses the most advanced technology in gold recovery and recycling from spent sources of mobile phones, unwanted electronic equipment and waste materials. State-of-the-art techniques of hydrometallurgical and bio-metallurgical processing, leaching, cementing, adsorbing and separation through bio-sorbents are all described in detail, providing a guide for students and researchers. Discussion of environmentally friendly methods of recovery are presented, in order to provide modern-day alternatives to previous techniques. For those interested in the study of gold recovery this book gives a comprehensive overview of current recovery, making it the ultimate source of information for students, researchers, chemists, metallurgists, environmental scientists and electronic waste recovery experts.