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Handbook of Flotation Reagents: Chemistry, Theory and Practice
By: Srdjan M. BulatovicImprint: Elsevier Science
Format: ePub Encrypted (DRM)
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Handbook of Flotation Reagents: Chemistry, Theory and Practice is a condensed form of the fundamental knowledge of chemical reagents commonly used in flotation and is addressed to the researchers and plant metallurgists who employ these reagents. This book consists of three distinct parts: part 1 provides detailed description of the chemistry used in mineral processing industry; part 2 describes theoretical aspects of the action of flotation reagents, while part 3 provides information on the use of reagents in over 100 operating plants treating Cu, Cu/Zn, Cu/Pb, Zn, Pb/Zn/Ag, Cu/Ni and Ni ores. Written in a clear, easy-to-follow format, Handbook of Flotation Reagents: Chemistry, Theory and Practice is an indispensable reference for any professional working with flotation reagents. In a number of chapters, data from innovative technology is presented.
Looks at the theoretical aspects of flotation reagents
Examines the practical aspects of using chemical reagents in operating plants
Provides guidelines for researchers and engineers involved in process design and development
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| Title of Technology eBook: Handbook of Flotation Reagents: Chemistry, Theory and Practice | |
| Release Date: 10-26-2010 | |
| Publisher: Elsevier Science |
This eBook download is available in the following formats:
| Parent title | Handbook of Flotation Reagents:... |
|---|---|
| Encrypted (DRM) | Yes |
| SKU | 9780080932095 |
| File size | 2731 |
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| Note | Excellent navigation features are available via Adobe such as bookmarks and a quick access table of contents. Text search is easily accessible. An Adobe DRM-protected file is different than a pdf file in that it uses Adobe DRM (Digital Rights Management) technology, which authors and publishers use to protect their content from illegal online distribution and to set certain privileges such as restrictions on copying and printing. |
Handbook of Flotation Reagents: Chemistry, Theory and Practice
Chapter One
Flotation of Gold Ores17.1 INTRODUCTION
The recovery of gold from gold-bearing ores depends largely on the nature of the deposit, the mineralogy of the ore and the distribution of gold in the ore. The methods used for the recovery of gold consist of the following unit operations:
1. The gravity preconcentration method, which is used mainly for recovery of gold from placer deposits that contain coarse native gold. Gravity is often used in combination with flotation and/or cyanidation.
2. Hydrometallurgical methods are normally employed for recovery of gold from oxidized deposits (heap leach), low-grade sulphide ores (cyanidation, CIP, CIL) and refractory gold ores (autoclave, biological decomposition followed by cyanidation).
3. A combination of pyrometallurgical (roasting) and hydrometallurgical route is used for highly refractory gold ores (carbonaceous sulphides, arsenical gold ores) and the ores that contain impurities that result in high consumption of cyanide, which have to be removed before cyanidation.
4. The flotation method is a technique widely used for the recovery of gold from gold-containing copper ores, base metal ores, copper nickel ores, platinum group ores and many other ores where other processes are not applicable. Flotation is also used for the removal of interfering impurities before hydrometallurgical treatment (i.e. carbon prefloat), for upgrading of low-sulphide and refractory ores for further treatment. Flotation is considered to be the most cost-effective method for concentrating gold.
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