Pilot Testing Comparison of VRM Milling with AG and Ball Milling, each in Combination with Magnetic Separation, for Grange Resources' Southdown Magnetite Ore
D David1
FAusIMM CP(Met), Wood Australia, Perth, Australia
*This paper was presented at MEi Communution 23 Conference held 17-20...
25-Oct-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
Semi-analytical modelling of a multi-shaft mill
Carlos Les (a),∗, James M. Finley (a), Boaz Friedland (b)
a) Element Digital Engineering, United Kingdom
b) Energy and Densification Systems (EDS), Johannesburg, South Africa
*This paper was presented at MEi Communution 23 Conference held...
18-Sep-2023
Fractal Energy: Combining fractal dimension of fracture surfaces and Size Specific Energy to describe comminution
Grant Ballantyne Director of Technical Solutions, Ausenco This email address is being protected from spambots. You need JavaScript enabled to view it.
*This paper was presented at MEi Communution 23 Conference held 17-20 April 2023 in Cape Town, So...
15-Sep-2023
A HPGR pseudo-dynamic model approach integrated with real-time information for pressing iron ore concentrates in industrial-scale
T M Campos1, H A Petit2, R Olympio3 and L M Tavares4
1. Research assistant, Department of Metallurgical and Materials Engineering, Universidade Federal do Rio de Janeir...
12-Jul-2023
Mine-to-Mill optimisation at Mont Wright
J Hi/11, R Ouellet2, R Deslias3, I K Kapinga4, P O Devin5, H Achache6, W Valery7, R Hayashida8, T Farmer, B Bonfi/s10 and K Duffy11
Director Mining Services, ArcelorMittal Exploitation miniere Canada, Fermont (Quebec) GOG 1JO, Canada. Email: hill@...
12-Jul-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
Microwave Heating Behaviour of Ores and its Application to High-Power Microwave Assisted Comminution and Ore Sorting
J. Forster1, A. Olmsted2, X. Tian3, D. Boucher1, M. Goldbaum1, C. A. Pickles2, E. R. Bobicki4
1. University of Toronto, Toronto, ON, Canada2. Queen’s University, Kingston, ON,...
12-Jul-2023
Wraith, Resta, Welmans
Presented at the AusIMM Mill Operators Conference, Brisbane Australia June 23 - 25 2021
ABSTRACT
Bluestone Mines Tasmania JV, Tasmania Tin Operations recognised value in mining at or near to 1Mt/a. However, the Renison Tin concentrator is restricted at 750kt/a. The solution...
20-Jul-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
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
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
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
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
Kurth, Balzan
Presented at the Preconcentration Digital Conference November 2020
ABSTRACT
The potential for bulk diversion was identified and quickly implemented following the development of bulk sensing technologies applied to conveyed flows. In the early 1980s real time analysis of ash in coal...
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
Coghill, Cutmore, Carter, Millen, Haarlem
Presented at the Preconcentration Digital Conference November 2020
ABSTRACT
Due to the low concentration of gold, ore sorting for gold has always required measuring indirect properties, such as density or colour, to allow separation on a rock by rock basi...
13-Apr-2021
Scott, Rutter, du Plessis, Alexander
Presented at the Preconcentration Digital Conference November 2020
ABSTRACT
It is generally acknowledged that bulk ore sorting is an attractive prospect for the mining industry. However, uncertainties relating to the operational performance of sensor technolog...
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
Parry
Presented at the Preconcentration Digital Conference November 2020
ABSTRACT
In May 2018 Kasbah Resources Limited (“Kasbah”) completed an ore sorting test work program which was a precursor to releasing in July 2018 an updated Definitive Feasibility Study (“DFS”) for the Achmmach Tin Project...
13-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
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
S Nadolski, R Haycock, K Li, S Seiler, A Kumar
SAG Conference Vancouver, Canada September 22 – 26, 2019
ABSTRACT
A comprehensive energy study was carried out for the Red Chris mill, which processes copper-gold ore at a rate of 30,000 tonnes per day (t/d) and is located in Northern British Columbi...
06-Jan-2020
P Lind, K Murray, A Boylston, & I Arce
SAG Conference Vancouver, Canada September 22 – 26, 2019
ABSTRACT
Mineral processing consumes significant power, primarily in comminution, as well as significant amounts of water through hold-up in conventional tailings facilities. Reducing power and wa...
06-Jan-2020
J.STARKEY1, B. HILSHER2, S. REEVES3 and J. HEDDERSON4
J. Starkey (1), B. Hilscher (2), S. Reeves (3) and J. Hedderson (4)
1. Sacré-Davey Engineering, and Starkey & Associates Inc, Oakville, Canada. Email: This email address is being protected from spambots. You need JavaScript enabled to view it.
2. Sacré-Davey Engineering, Oakville,...
23-Apr-2019
G R Ballantyne, M Hilden, K Bartram and V Souto
14thAusIMM Mill Operators’ Conference, 29-31 August 2018, Brisbane, Australia
ABSTRACT
Particle sorting allows partially liberated minerals to be separated prior to energy intensive fine grinding.
Sensors select particles for separation a...
23-Oct-2018
B Nielsen, J Rohleder, H Lehto and C Robbe
MetPlant 2017 – Metallurgical Plant Design and Operating Strategies – World’s Best Practice, 11-12 Sep 2017, Perth, Australia
Abstract
Sensor-based ore sorting is being increasingly used to reduce the amount of low-grade and waste m...
26-Oct-2017
Lutke von Ketelhodt, L. Kotelo, N. Schmalbein
49th Annual Conference of Metallurgists, Vancouver, Canada, August 27-30, 2017.
Abstract
Barkerville Gold Mines (BGM) is focused on building a sustainable, low impact, innovative, high-margin mining company in British Columbia’s Cariboo mini...
26-Sep-2017
Brent Hilscher, Preetham Nayak, Leo Lorio, Nawoong Yoon
49th Annual Conference of Metallurgists, Vancouver, Canada, August 27-30, 2017.
Abstract
Mining has been a staple to technological advancement ever since the dawn of time. By harnessing the different physical and chemical properties...
26-Sep-2017
Henry Kurth
49th Annual Conference of Metallurgists, Vancouver, Canada, August 27-30, 2017.
Abstract
Real time analysis of conveyed bulk materials can be used to improve process performance by reducing variability, and upgrading ore quality through selective removal of increments of flow that...
26-Sep-2017
Arvin Mazhary, Huaizhe Li, Bern Klein
49th Annual Conference of Metallurgists, Vancouver, Canada, August 27-30, 2017.
Abstract
Although sensor-based ore sorting has gained significant attention recently, sorting gold deposits still face a high level of skepticism by gold mining companies. In...
26-Sep-2017
Peter Coghill, Channel Tissot, Rhys Palmer
49th Annual Conference of Metallurgists, Vancouver, Canada, August 27-30, 2017.
Abstract
Due to the low concentrations of gold, direct measurement of gold concentration in ore on-belt has not been seriously considered until now. Pre-concentratio...
26-Sep-2017
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
Bridging the gap: Understanding the economic impact of ore sorting on a mineral processing circuit
J Lessard (1), W Sweetser (1), K Bartram (2), J Figueroa (1) and L McHugh (1)
ABSTRACT
Automated, continuous ore sorting is a mature technology that has only been used to a limited extent...
26-May-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
Upgrading low-grade gold ore stockpiles by preconcentration using ore sorting – an assessment of the economic impact and viability.
A N Parry and G van Wyk
Mill Operators Conference 2016
ABSTRACT
Sensor based automatic ore sorting technologies are used in the minerals industries to efficiently...
26-Apr-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
Comminution and classification circuits consume significant amounts of energy. Some estimates show that comminution processes accounts for around 40 % of the total energy consumed in mining operations and 1.5-1.8 % of the total national energy consumption in mining intensive countries such...
19-Apr-2016
Abstract
This paper discusses how to effectively conduct energy efficiency studies during the design of new mineral processing plants and plant expansions. Energy management studies for new plants are ideally conducted as part of the feasibility study, but can also be done at the detailed design...
09-Apr-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