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Particle motion observed inside a laboratory-scale Knelson Concentrator using positron emission particle tracking
By Darryel Boucher, Raymond Langlois, Neil Rowson, Kristian Waters
The Knelson Concentrator is a centrifugal gravity concentrator composed of a high speed rotating bowl into which a mineral slurry is fed. The rotational motion creates a centrifugal acceleration up to
Jan 1, 2014
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Study of the Influence of Water Recirculation in the Concentration Process by Flotation of Chalcopyrite
By D. Endara, E. De la Torre, S. Echeverria
"The study was conducted with the sulfide mineral from the province of Zamora Chinchipe. It was characterized physical, chemical and mineralogical, obtaining between its main results a copper concentr
Jan 1, 2018
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Analysis Of Autogenous And Semi-autogenous Grinding Test Data For Prediction Of Plant Performance
By John A. Rumball, Martin R. Houchin
Data from autogenous and semi-autogenous tests in a 1.67m diameter mill have been analysed in terms of a new model for rock abrasion. This model defines specific rate as the rate of production of fine
Sep 29, 2003
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Enrichment Of Valuable Metals From End-Of-Life Printed Circuit Boards Using Mechanical Recycling Techniques
Large quantities of electrical and electronic equipments are discarded at the end-of-life (EOL) in different industries and house hold applications. Their disposal is creating a challenging environmen
Sep 1, 2012
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Investigation Aspects of Flocculation and Coagulation Process on the Efficiency of Iron Tailing Thickening Process
By S. M. H. Haddad, M. Saghaeian, R. Hejazi
"Due to limited water resources in mineral processing plants, increasing the efficiency of iron tailing dewatering system in order to obtain more usable water is very important. In this research, floc
Jan 1, 2018
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Study on the Structure and Gelating Performance of Organically Modified Montmorillonite
By X. J. Lu
Purified Na-montmorillonite samples were used as the starting materials to prepare organically modified montmorillonites (OM), and a series of OM samples were prepared by intercalation of al-kyl quate
Jan 1, 2014
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Innovative Flotation Routes in an Iron Ore Concentrator
This investigation addressed two products from Samarco?s desliming circuit, namely underflow of cleaning cyclones and underflow of desliming cyclones. The roughing cyclones receive the product of the
Jan 1, 2014
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Changing Project Economics by the Application of Ore Sorting Technology
By Yi Ran Zhang, Nawoong Yoon, Brent Hilscher, Maria Holuszko
"Ore sorting technology has been rapidly advancing in recent years. Improving expected mill feed grade has a significant benefit to project returns, and can no longer be ignored. When there is an incr
Jan 1, 2018
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Iron Ore Processing In India- A Holistic Approach
By M. Bhartia
India is the 5th largest producer of steel in the world and is slated to produce more than 180 Mt by 2020. Expectedly about 50 % of this would be through the Blast furnace route and the rest through S
Sep 1, 2012
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The Effect Of Grinding Environment On Floatability Of Micro-Fine Disseminated Molybdenite
Micro-fine disseminated molybdenite was ground in a laboratory stirred mill using steel media and zirconium media respectively. The floatability of ground molybdenite and slurry chemistry was investig
Sep 1, 2012
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Study on New Flotation Process for Comprehensive Recovery of Copper Resource Associated in Lead Zinc Sulphide Ore
By D. X. Chen
Comprehensive utilization of the copper associated with the complex lead and zinc sulphide ore is a recognized and difficult technical issue in ore dressing field. Qi Baoshan lead-zinc mine is a typic
Jan 1, 2014
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Experimental Study on Pre-Discarding Tailings for a Low Grade Complex Multi-Metals W-Mo Ore
By Liu Jin
"In order to reduce the dosage costs and increase the economic benefits of a full floating process in a low grade complex multi-metals W-Mo ore, based on the study of the magnetic characteristics of t
Jan 1, 2018
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Segregation of Minerals in Dynamic Air Classifiers
By F. v. d. Meer, G. Kretschmar, T. Mütze, T. Leißner
"Dynamic air classifiers separate particles in a gas flow due to different particle trajectories utilizing differences in the settling velocity of particles as characteristic property for separation.
Jan 1, 2018
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Improving AG/SAG Mill Performance with Optimised Pulp Discharger Design
Nowadays, the more successful plants are those who have adopted effective and efficient strategies to optimise their plant operation. As the ?heart of the plant? could be viewed as the mil-ling/grindi
Jan 1, 2014
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Higher grades and better recovery through pre-concentration of precious and base metal ores
By Georges Delemontex, Nigel Grigg
"Pre-concentration of precious metal and base metal ore types is becoming more relevant with the discovery, development and operation of many lower grade deposits around the world. The fluctuations in
Jan 1, 2014
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Application of Hydrocyclone Classified Thickening Process in Tailings Dehydration of Beiminghe Iron Mine
By X. Q. Cui
The surficial collapse pits of the mining areas are continuously spreading in Beiminghe iron mine of Hebei Province as a result of the exploitation, which has done a lot of damage to the circumjacent
Jan 1, 2014
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Newcrest Technology- A Step Change
By Andrew Logan
Newcrest has a strong history of growth over the past 20 years, yielding value from previously marginal ore bodies. We have grown regionally in Asia Pacific through our operations in Australia, Indone
Sep 1, 2012
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Characterization of the Centrifugal Mill by Lumped Kinetic Math Model and Discrete Element Model
By T. Inoue, K. Okaya
"Movement of mill charge in the centrifugal mill is essentially different from that in the vibration mill with circular path despite the apparently similar mode in the motion of mill body. As proved e
Jan 1, 2003
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PGM Metals And Sulphur Recovery From Copper-Nickel Technogenic Materials
By A. A. Lavrinenko
There are discussed the possibilities of using of flotation tailings of platinum-copper-nickel sulfide ores of the Norilsk region for the preparation of backfill mixture instead of a specially produce
Sep 1, 2012
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Influence of Shaking Table Parameters on Manganese Grade and Recovery
By M. R. Hosseini
Among all gravity concentration methods, Shaking-table is the most effective one from the metallurgical point of view. In this study, Shaking-table was used for concentrating a manganese ore sample fr
Jan 1, 2014