Pre-concentration

Pre-concentration

Amini, Beaton Presented at the Preconcentration Digital Conference November 2020 ABSTRACT Application of ore pre-treatment technologies such as Grade Engineering and in-pit ore treatment require comprehensive analysis to show proven value is being generated by switching away from the current pr...
17-May-2021
Valery, Duffy, Holtham, Tabosa, Andrade Presented at the Preconcentration Digital Conference November 2020 ABSTRACT Pre-concentration has potential to significantly improve Mineral Resource efficiency by removing gangue early in the process, before energy intensive and expensive comminution and...
17-May-2021
Scott, Amini Presented at the Preconcentration Digital Conference November 2020 ABSTRACT Grade Engineering® involves the planning, integration and operation of coarse preconcentration techniques to reject uneconomic material as early as possible in the mining value chain to improve the quality of...
17-May-2021
Dehkhoda, Salaya, Kwak, Keeney Presented at the Preconcentration Digital Conference November 2020 ABSTRACT In addition to volatile commodity prices influencing decision making, in recent years, social and environmental performance have become important decision drivers within the mining industry....
17-May-2021
Blouin, Gagnon, El-Haddad, Soares de Lima Filho, Vanier, Harhira, Bouchard, Boismenu, Hamel, Beauchesne, Padioleau, Vaillancourt, Plugatyr, Sabsabi, Wilkie Presented at the Preconcentration Digital Conference November 2020 ABSTRACT Quantitative mineralogy is an established discipline in the geosc...
13-Apr-2021
Auranen, Raatikainen Presented at the Preconcentration Digital Conference November 2020 ABSTRACT ON-LINE SENSORS IN PRE-CONCENTRATION – 25 YEARS OF EXPERIENCE IMA Engineering (IMA) and Mine On-Line Service (MOLS) companies have used on-line sensors for analysing ore and waste rock in mining for...
13-Apr-2021
Rech, Kroukamp Presented at the Preconcentration Digital Conference November 2020 ABSTRACT CRONIMET Australia in cooperation with Speciality Metals International, the mining lease holder of the Mt Carbine Tungsten mine, have demonstrated the preconcentration and processing of large (>12 millio...
13-Apr-2021
BoBo, La Rosa, Cameron Presented at the Preconcentration Digital Conference November 2020 ABSTRACT Efficient pre-concentration using natural and induced deportment starts with effective blast design. Leveraging these characteristics using Size-Based Grade Engineering® techniques requires detailed...
13-Apr-2021
Pyle, Ballantyne, Chandramohan, Vizcarra, Lane Presented at the Preconcentration Digital Conference November 2020 ABSTRACT Preconcentration, through gravity separation (Wallace et al, 2015), magnetic separation and particle size (Clout, 2013), has been used in many historical projects to convert...
30-Mar-2021
Anyimadu, Appeah Owusu, Peattie, Chamberlain, Aniawu – Asumakah Presented at the Preconcentration Digital Conference November 2020 ABSTRACT This is an integrated geology and plant improvement study arising from the heterogeneity seen in mineralogy and gold association at the Obuasi goldmine in Gh...
30-Mar-2021
*K. Bru, M. Beaulieu, R. Sousa, M. Leite, A, De Sousa, E. Kol, J. Rozenkranz, D. de Parvaz Minerals Engineering ABSTRACT Electric Pulse Fragmentation (EPF) is an innovative technology that uses High-Voltage Pulsed Power (HVPP) for the selective comminution of a material. This paper aims to compa...
23-Jun-2020
Bearman, Bowman, Dunne AusIMM Publication ABSTRACT Upgrading coarse feed in gold plants, through a process of selective processing, has always been of interest. The level of interest has waxed and waned over the last 30–40 years, but improvements in methods and pressure to increase the efficienc...
23-Jun-2020
X-ray transmission (XRT) sorting has been introduced into the minerals industry in 2006 and has found various applications in diamonds, industrial minerals, and metal ore processing since. The technology offers planar projection of the atomic density of single particles similar to the principle know...
21-May-2016
Abstract The Detour Lake mine is located in north-eastern Ontario, approximately  three hundred kilometres north-east of Timmins and 185 kilometres by road north-east of Cochrane. The mill processes a free milling gold ore using both gravity circuit and leaching with a state of the art carbon-in...
20-Mar-2016
Abstract This paper compares the performance associated with both direct and reverse ball mill closed circuit configurations. Survey campaigns were carried out in both Samarco Mineração industrial plants, i.e., Concentrator I and Concentrator II. The former is equipped with a reverse-configured b...
12-Feb-2016
Abstract As high grade ore deposits are depleted, remaining deposits are generally lower grade and require the mining and processing of larger volumes of material per tonne of product. These low grade deposits often contain a large proportion of barren gangue. Pre-concentration aims to remove this...
26-Nov-2015
ABSTRACT A process involving pre-concentration, drum agglomeration and column leach was evaluated for nickel laterite ores from Western Australia. The result showed that pre-concentration by selective comminution followed by size classification has a potential to upgrade nickel laterites and to i...
25-Nov-2015
ABSTRACT Blasting plays a major role in the fragmentation of rock in open pit mining, which is then crushed and processed before the final product is obtained. Tailoring the blasting method to suit rock mass characteristics can lead to significant improvements downstream. Mine to Mill is a method...
25-Nov-2015
Metallurgical Plant Design and Operating Strategies 2004 Oceana Gold (New Zealand) Limited operates the Macraes Gold Mine near Dunedin on the South Island of New Zealand. The ore body is mineralogically complex and comparatively low grade requiring a series of unit processes and resulting in a re...
22-Oct-2004