Brierley CL (2001) Bacterial succession in bioheap leaching. Hydrometall 59:249–255. CrossRef Google Scholar. Brierley JA, Brierley CL (2001) Present and future commercial applications of biohydrometallurgy. Hydrometallurgy 59:233–239.
Thermophilic Bioheap Leaching of Chalcopyrite Concentrates T.J. Harvey1*, N. Holder2, T. Stanek2 1 GeoBiotics, LLC, 12211 W. Alameda Pkwy, Suite 101, Lakewood, CO, 80228, USA 2 Lakefield Research Africa (Pty) Ltd, 58 Melvill Street, Booysens, Gauteng, 2091, South Africa Received 13 June 2002 accepted 15 October 2002 ABSTRACT
Bacterial succession in bioheap leaching. . : [1],, . (M). :, 2003. [2]
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Bioheap leaching of secondary copper ores is applied commercially at operations in Chile, Australia, and Myanmar. Bioheap leaching of sulfidic refractory gold ores has been demonstrated at large scale. There is limited comprehension of what actually occurs microbiologically in full-scale bioheap operations, despite the commercial achievement of copper ore bioheap leaching and the anticipated ...
microbial succession during a heap bioleaching cycle of low grade copper sulphides. does this knowledge mean a real input for industrial process design and control?
The bacterial succession in bioheap leaching solutions allowed the leaching cycle stages to be describe as: i) Acid conditioning and soluble copper releasing, ii) Chalcocite Bacterial leaching (ferrous oxidation); iii) Chalcocite Bacterial leaching (ferrous and reduced sulfur compounds –RSC- oxidation); iv) Bacterial leaching of sulphide minerals with higher rest potentials (pyrite and ...
Bacterial succession in bioheap leaching In: ions from the ore in the column by the washing of the Ballester, A, Amils, R (Eds), Biohydrometallurgy and the En- agglomerated ore The decrease of the sulfate ion vironment Toward the Mining of the 21st Century Elsevier, ...
Such conditions likely select for microorganisms or may, in fact, effect a succession of organisms in portions of the bioheap. Bioheap solutions are recycled and constituent build-up over time also affects the microbiology. Organic entrapment in the raffinate from the solvent extraction circuit may influence microbial activity.
Article "Bacterial succession in bioheap leaching." Detailed information of the J-GLOBAL is a service based on the concept of Linking, Expanding, and Sparking, linking science and technology information which hitherto stood alone to support the generation of ideas. By linking the information entered, we provide opportunities to make unexpected discoveries and obtain knowledge from ...
leaching and bacterial leaching. There are currently no heap leach operations processing primary (chalcopyrite) copper sulphides. 80% of world copper resources consists of low grade chalcopyrite, where the grade is too low to concentrate and which cannot be economically processed in any way other than heap leaching.
20-10-2009· Using pregnant leaching solution as an indicator of the microbial communities within an industrial bioheap Based on the necessity of understanding the microbiology of heaps ( Brierley, 2001 ), we monitored the composition and dynamic of the microbial communities from an industrial bioleaching …
01-10-2010· The paper Bacterial succession in bioheap leaching (Brierley, 2001) showed the search for methods to analyze the microbial dynamics in bioleaching industrial processes as a key challenge for advancing commercial bioheap applications."Chemical and physical conditions within bioheaps change radically from the time the bioheap is stacked and inoculated until bioleaching is completed."
The paper "Bacterial succession in bioheap leaching" [1] initiated the search for methods to analyze the microbial dynamics in bioleaching industrial processes as a key to advancing commercial bioheap applications. "Chemical and physical conditions within bioheaps change radically from the time the bioheap is stacked and inoculated until bioleaching is completed."
The bacterial succession in bioheap leaching solutions allowed the leaching cycle stages to be describe as: i) Acid conditioning and soluble copper releasing, ii) Chalcocite Bacterial leaching (ferrous oxidation); iii) Chalcocite Bacterial leaching (ferrous and reduced sulfur compounds –RSC- oxidation); iv) Bacterial leaching of sulphide minerals with higher rest potentials (pyrite and ...
:5/57201235-.elsevierrlocaterhydromet Bacterial succession in bioheap leaching C.L. considers conditions that control microbial populations in b. Patent US20130247719 - Heap leaching - Google Patents A heap of a material to be leached to recover a valuable metal from the material and a method of constructing the heap are disclosed. The heap.
Gold leaching agent Replace Cyanide chemicals used for gold extraction that non threaten human health carbon leachingActivated carbon leaching CIL/CIP gold processing plantActivated carbon. ... bacterial succession in bioheap leaching; Products. Crushing (7) Screening (12) Grinding (10) Classifying (9) Flotation (6) Related Post.
Bacterial succession in bioheap leaching,:Hydrometallurgy592001.249–255 ...
Microbial succession in a bioheap treating a low-grade copper sulfide showed At. ferrooxidans to be initially dominant compared to later stages of the bioleaching process when L. ferriphilum also ...
Bacterial succession in bioheap leaching_ :5/57201235-249255 .elsevierrlocaterhydromet Bacterial succession in bioheap .yielded a successful commercial process for bioheap leaching sec. Microbial Leaching process to recover valuable metals from .
01-02-2001· Employ bacteria that initiate oxidation at higher pH values and condition ore for conventional leaching bacteria: Allow effective bioheap leaching of high-pH ores, expanding the types and numbers of ore deposits amenable to bioheap leaching: Understand the adaptation or succession of leaching bacteria to the changing character of the leach solutions, high TDS situations, and …
Abstract A native mesophilic iron-oxidizing bacterium, Acidithiobacillus ferrooxidans, has been isolated (30°C) from a typical, lead-zinc concentrate of Dachang Mine in the region of Liuzhou located in the southwest of China. Two typical copper sulfide minerals, chalcopyrite and bornite, were from Meizhou Copper Mine in the region of Guangdong Province, China.
The paper Bacterial succession in bioheap leaching (Brierley, 2001) showed the search for methods to analyze the microbial dynamics in bioleaching industrial processes as a key challenge for ...
Bioheap leaching of secondary copper ores is applied commercially at operations in Chile, Australia, and Myanmar. Bioheap leaching of sulfidic refractory gold ores has been demonstrated at large scale. There is limited comprehension of what actually occurs microbiologically in full-scale bioheap operations, despite the commercial achievement of copper ore bioheap leaching and the anticipated ...
Bacterial succession in bioheap leaching_ :5/57201235-249255 .elsevierrlocaterhydromet Bacterial succession in bioheap leaching C.L. Brierley ) Brierley Consultancy LLC, …
01-01-1999· Bacterial succession in bioheap leaching C.L. Brierley Brierley Consultancy LLC, P.O. Box 260012, Highlands Ranch, Colorado 80163-0012, USA Bioheap leaching of secondary copper ores is applied commercially at operations in Chile and Australia. Bioheap leaching of sulfidic refractory gold ores has been demonstrated at large scale.
26-08-2002· Although both bacterial oxidation and non-bacterial heap leaching are established in the gold and copper industries, their combined use in nickel extraction is unique. The BioHeap process treats crushed ore, so avoiding the need for fine grinding and concentration steps usually needed for most bacterial oxidation techniques.
Bacterial succession in bioheap leaching (Brierley, C L) Mineralogical factors affecting arsenopyrite oxidation rate during acid ferric sulphate and bacterial leaching of refractory gold ores (Andrews, L, Merkle, R K W) Acidbacterial leaching of pyrite single crystal (Aoki, A)