Evaluation of a novel electrode design for high voltage pulse ore pre-concentration
Daniel Lay, Fengnian Shi, Christian AntonioJulius Kruttschnitt Mineral Research Centre, Sustainable Minerals Institute, The University of Queensland, Indooroopilly, Brisbane, 4068 QLD, Australia
*This paper was pub...
09-Jul-2024
MINE-TO-MILL OPTIMIZATION, PRODUCTION RELIABILITY ENHACEMENT AND EFFICIENT USE OF RESOURCES OVER THE LIFE-OF-MINE
Walter Valery 1, Rodrigo Hayashida 2, Roberto Valle 3, Erico Tabosa4, Kristy Duffy 5, Lindon Pyle 6
PhD, Global Director Consulting and Technology, Mining and Minerals Processing, Ha...
09-Jul-2024
Potential and impact of sensor based sorting on the grinding circuit performance for a polymetallic ore
Priscila M. Esteves1*, Lucas Monteiro Correa e Lopes2, Pablo dos Santos Pina2, Wellington Gomes3, Thiago Jatobá3
Steinert Latinoamericana, Pedro Leopoldo, Brazil
Nexa Resources, Aripuanã, Br...
09-Jul-2024
Pre-concentration by screening - a cost-effective approach to testing and evaluation
N Clarke1 and A Barros2
1. Principal Consultant, Imtech Pty Ltd, Perth WA 6009. Email: This email address is being protected from spambots. You need JavaScript enabled to view it.
2. Professional Senior de Metalurgia, Minera de Cobre Quebradona, Medellin, Colombia. Email: abarros@An...
20-Sep-2023
PRESENTATION - Potencial and Impact of Sensor Based Sorting on the Grinding Circuit Performance for a Polymetallic Ore
Priscila M. Esteves1*, Lucas Monteiro Correa e Lopes2, Pablo dos Santos Pina2, Wellington Gomes3, Thiago Jatobá3
¹ Steinert Latinoamericana, Pedro Leopoldo, Brazil
²Nexa Res...
18-Sep-2023
POTENCIAL AND IMPACT OF SENSOR BASED SORTING ON THE GRINDING CIRCUIT PERFORMANCE FOR A POLYMETALLIC ORE
Priscila M. Esteves1*, Lucas Monteiro Correa e Lopes2, Pablo dos Santos Pina2, Wellington Gomes3, Thiago Jatobá3
¹ Steinert Latinoamericana, Pedro Leopoldo, Brazil
²Nexa Resources, Ar...
18-Sep-2023
Pre-Concentration – More than Bulk Ore Sorting
L Pyle1, W Valery2, P Holtham3 and K Duffy4
1. Minerals Processing Engineer, Hatch, Brisbane, Qld, 4000. Email: This email address is being protected from spambots. You need JavaScript enabled to view it.. Global Director–Consulting and Technology, Hatch, Brisbane, Qld, 4000. Email: This email address is being protected from spambots. You need JavaScript enabled to view it. 3. Senio...
12-Jul-2023
Valery, Valle, Roberto, Duffy, Holtham, Tabosa, Plasencia
Presented at Procemin-GEOMET 2020
ABSTRACT
At a time when the industry is faced with declining head grades, increasing operating costs, and problems associated with water and energy supply, pre-concentration offers hope. Pre-concentration...
22-Nov-2021
Mousavia, Parsapourb, Tafvizia, Mahmoudic, Banisid
Published in Proceedings of the IMPC2020 Congress, SAIMM
ABSTRACT
Generally, regrind circuits are used to increase the degree of liberation of value minerals which are fed to flotation circuits. At the regrind circuit of the Sarcheshmeh copper co...
18-May-2021
Ross. Bergmann
Published in Proceedings of the IMPC2020 Congress, SAIMM
ABSTRACT
The concept of underground ore processing, in which valuable ore and waste are separated at a coarse particle size to improve the economics of operations and minimisethe environmental impact, seems attractive from a...
18-May-2021
Wilkie, Keeney, Walters, Dyer, Tadesse
Published in Proceedings of the IMPC2020 Congress, SAIMM
ABSTRACT
Grade Engineering® is a term trademarked by the Cooperative Research Centre for OptimisingResource Extraction (CRC ORE) and includes five key levers for upgrading ores and rejecting waste prio...
18-May-2021
Pyle, Valery, Holtham, Duffy
Published in Proceedings of the IMPC2020 Congress, SAIMM
ABSTRACT
A conceptual scoping study was conducted to investigate pre-concentration options for upgrading ore from an Ag-Pb-Zn deposit. The low grade of the ore would result in only modest economic returns, given...
17-May-2021
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
Ehrig, Liebezeit, Macmillan, Li, Pewkliang, Smith
Presented at the Preconcentration Digital Conference November 2020
ABSTRACT
Pre-concentration of low grade ores via the rejection of low/no value materials based on fragment size is the subject of many published papers and studies over the past de...
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
Spooner, Tsiminis, Moffatt, Payten, Teixeira, Klantsataya, de Prinse, Smith, Ottaway
Presented at the Preconcentration Digital Conference November 2020
ABSTRACT
Single wavelength fluorescence sensing has been used in the preconcentration of ores for many years in situations where it is typically...
27-Apr-2021
Souto, Bechir, Esteves, Galery, Senna
Presented at the Preconcentration Digital Conference November 2020
ABSTRACT
The current moment experienced by the mineral industry is marked by a series of economic, social and environmental challenges. Among the main challenges, it is important to highlight...
13-Apr-2021
Rutter, Scott, Odiar, Federov, Francois-Bongarcon
Presented at the Preconcentration Digital Conference November 2020
ABSTRACT
There are two fundamental methods for metalliferous sensing of primary crushed ore available for deployment at operations. These methods can be classed as surface measure...
13-Apr-2021
Robben, Kobzev
Presented at the Preconcentration Digital Conference November 2020
ABSTRACT
Sensor-based particle sorting of gold ores is the masterclass of preconcentration. The technical challenges of a grade in ppm scale makes a direct detection with currently available technology in milliseco...
13-Apr-2021
Noble, Ferguson
Presented at the Preconcentration Digital Conference November 2020
ABSTRACT
The mining industry is facing economic pressures to treat more challenging and lower grade ore types, as well as pressure relating to environmental impact and social license to operate. Preconcentration t...
13-Apr-2021
Luo, Danoczi, Nakutnyy
Presented at the Preconcentration Digital Conference November 2020
ABSTRACT
Sensor-based sorting methods to remove waste or for upgrading ore prior to downstream metallurgical processing is becoming more prevalent for mining operations. X-ray transmission (XRT) sorters are...
13-Apr-2021
Koh, Amini, McLachlan, Beaton
Presented at the Preconcentration Digital Conference November 2020
ABSTRACT
Preconcentration greatly reduces the ore mass input to the processing plant while upgrading the grade. One of the commonly used methods of preconcentration is optical sorting. These methods r...
13-Apr-2021
Coghill, Curtain, Lovric, McEwan, Milinkovic, Miljak, Roberts, Stefulj, Yong
Presented at the Preconcentration Digital Conference November 2020
ABSTRACT
The CSIRO has pioneered the development and use of certain classes of magnetic resonance (MR) for mining applications. The MR technique is a rad...
13-Apr-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
Lowes, Zhou, McGrath, Eksteen, Galvin
Presented at the Preconcentration Digital Conference November 2020
ABSTRACT
Pre-concentration of low grade ores can improve the economic and environmental sustainability of an operation significantly, with opportunities for implementation ranging from run-of-...
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
Revell, Wilkie
Presented at the Preconcentration Digital Conference November 2020
ABSTRACT
The R&D landscape for ore pre-concentration technologies within mining is characterised by the development of individual technologies and point solutions. This presents METS and mining companies with th...
12-Apr-2021
Pyle, Valery, Holtham, Duffy
Published in Proceedings of the IMPC2020 Congress, SAIMM
ABSTRACT
A conceptual scoping study was conducted to investigate pre-concentration options for upgrading ore from an Ag-Pb-Zn deposit. The low grade of the ore would result in only modest economic returns, given...
30-Mar-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
Keeney, La Rosa, Walters, Rutter, Scott
Presented at the Preconcentration Digital Conference November 2020
ABSTRACT
Bulk ore sorting technologies, whether surfaced based or penetrative, have seen an increased uptake by the mining industry for preconcentration application. As with all technologies...
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
Adair, Revell, King, Keeney
Presented at the Preconcentration Digital Conference November 2020
ABSTRACT
Grade Engineering®, integrated across the mine value chain, has a pivotal role to play in achieving step change reductions in energy and water usage in mine operations. High levels of gangue re...
29-Mar-2021
K. Bru, R. Sousa, M. Leite, C. Broadbent, G. Stuart, D. Pashkevich, M. Martin, M. Kern, D. Parvaz
Minerals Engineering
ABSTRACT
Two approaches for the use of the Electric Pulse Fragmentation (EPF) in the beneficiation of a low-grade cassiterite schist ore were investigated through pilot-scale t...
23-Jun-2020
*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
B. Adair, L. Kenney, D. King, M. Scott
ABSTRACT
There are a number of potential technology opportunities to effect up-front gangue rejection in the minerals sector. CRC ORE has been working with several of its mining participants to assess the efficacy of a range of such technologies, assessed acr...
22-Jun-2020
17-Dec-2019
W VALERY (1), K DUFFY (1), P HOLTHAM (2), A REPLE (3), P WALKER (4), P ROSARIO (1)
PRESENTED AT IMPC 2016: XXVIII INTERNATIONAL MINERAL PROCESSING CONGRESS, AT QUEBEC CITY, CANADA
ABSTRACT
The mining industry is facing declining feed grades which require the mining and processing of larger volume...
18-Jul-2017
C CARRASCO1 2, L KEENEY 1 2, T J NAPIER-MUNN2, P BODE1
PRESENTED AT COMMINUTION ’16, MINERALS ENGINEERING INTERNATIONAL, PUBLISHED IN MINERALS ENGINEERING VOLUMES 103-104, BARRY WILLS (ED), APRIL 2017.
ABSTRACT
Grade Engineering® comprises a range of techniques aiming to reje...
18-Jul-2017
Technical Review and Evaluation of Ore Sorting Technology Incorporating Results from Four Properties
B Hilscher (1), P Nayak (1) and N Yoon (1)
49th Annual Canadian Minerals Processors Conference Proceedings, Ottawa, Canada, 2017.
ABSTRACT
The mining industry is currently facing chal...
26-May-2017
Abstract
With energy costs increasing and ore grades diminishing, the role of pre-concentration in hard rock mining operations has been gaining greater interest. To maximise energy conservation, the pre-concentration process should be conducted at as coarse a grind size as possible, while minimis...
11-Jun-2016
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
Near infrared sensors can be a very useful technique for the qualitative analysis of complex ores, and thus could be useful for the preconcentration of ores. In this paper, individual particles of hydrothermally-formed copper ore sampled from a mine in the Los Pozos mining district, northe...
29-Feb-2016
ABSTRACT
In 2012, a single module heavy medium cyclone plant (HMP) was installed at the Glencore Zinc’s (then Xstrata Zinc) McArthur River lead zinc mine. The HMP formed the first part of the MRM Phase 3 Project to increase run of mine (ROM) capacity from 2.4 to 5.5 Mt/a.
The purpose of the HMP...
17-Feb-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