Trade-Off Realities in HPGR vs. SAG Milling—A Practical Comparison of Tropicana and Gruyere Comminution Circuits
*I.A. Lovatt, M. Becker and B. Putland1, R. Radford2, J. Robinson3
Orway Mineral Consultants Level 5, 1 Adelaide Terrace, East Perth, Western Australia 6004
Gold Fields Level 4, 235...
09-Jul-2024
The Impact of Media Embodied Carbon Emissions on Regrind Technology Selection
Bianca Foggiatto (1), Jocelyn Quinteros (1), Grant Ballantyne (1), Sam Crane (1), and Sergio Lagos (2)
Ausenco Services, Australia
Ausenco, Chile
*This paper was presented at Procemin-Geomet 2022 Conference, 5-7 O...
09-Jul-2024
Improving Energy Efficiency and Reducing Carbon Footprint at the FMR Greenfields Mill Operation
S Latchireddi (1), R Latchireddi (1), P Fallon (2), B Tully (2), and B Hooper (1)
EEMS Australia, Unit 19/12-16 East Victoria Park WA 6101, Australia, This email address is being protected from spambots. You need JavaScript enabled to view it.
FMR Greenfie...
09-Jul-2024
Developing an Advanced Throughput Forecast Model for Minera Los Pelambres
*L. Rodriguez 1, M. Morales 1, W. Valery 2, R. Valle 2, R. Hayashida 2, B. Bonfils 2, C. Plasencia 2
Minera Los Pelambres, Antofagasta Minerals S.A. Av. Apoquindo 4001, Piso 18, Las Condes, Santiago, Chile
Hatch Pty Ltd 6...
09-Jul-2024
Real-Time Estimation of SAG Mill Charge Characteristics for Process Optimization
*P. Toor1, W. Valery1, S. Morrell2, K. Duffy1
Hatch 61 Petrie Terrace. Brisbane, QLD, 4000, Australia
SMC Testing, Kenmore Hills, QLD, 4069, Australia
(*Corresponding author: This email address is being protected from spambots. You need JavaScript enabled to view it.)*This paper was...
09-Jul-2024
Integrated Mine-To-Mill Optimization of the Toromocho Operation at Minera Chinalco, Perú
*D. Fangrong1, D. Yang1, A. Muñoz1, W. Valery2, R. Valle2, B. Bonfils2, and C. Plasencia2
Minera Chinalco Perú S.A. Av. El Derby 250, Piso 20, Lima 33, Perú
Hatch Pty Ltd. 61 Petrie Terrace, Brisbane, Queen...
09-Jul-2024
Review and Upgrade of the Throughput Forecast Model of Minera Los Pelambres
Francisco Abbott1, Liduvina Rodriguez1, Michel Morales1, Walter Valery2, Roberto Valle3, Rodrigo Hayashida4, Benjamin Bonfils2, Kristy-Ann Duffy2 and Claudia Plasencia3
Minera Los Pelambres, Antofagasta Minerals, Chile...
09-Jul-2024
The Novel EDS Multishaft Mill – A Case Study
B.E. Friedlanda*, T. Chenjeb, C.K. Oberholzera
Energy & Densification Systems, Bryanston, Johannesburg 2191, South Africa
Anglo American – Technology Development, Brisbane City, QLD 4000, Australia
*Corresponding author email: This email address is being protected from spambots. You need JavaScript enabled to view it....
09-Jul-2024
Transforming iron ore processing – Simplifying the comminution and replacing reverse flotation with magnetic and gravity separation
Armando F. d. V. Rodrigues a,b,*, Homero Delboni Junior b, Klaydison Silva a,d, James Zhou c, Kevin P. Galvin c, Lev O. Filippov d
Department of Mineral Processin...
09-Jul-2024
SAG Mill Stability and Control Improvements at the Nova Nickel-Copper Operation
G Gomes-Sebastiaõ1 and P Hudson21. Executive Director, Improve IO Pty Ltd, 5/74 Kent Way, Malaga, WA, This email address is being protected from spambots. You need JavaScript enabled to view it. 2. Senior Metallurgist, IGO Nova Pty Ltd, 85 South Perth Esplanade, WA, paul.hudson@igo.c...
09-Jul-2024
Pilot Testing and Plant Design Comparison of Dry VRM Milling plus Magnetic Separation with AG and Ball Milling plus Magnetic Separation for Grange Resources' Southdown Ore
D David1, C Stanton2, D. Olwagen3, Dr C Gerold4, C Schmitz5, S Baaken6, M Everitt7
FAusIMM CP(Met), Senior Consultant, Woo...
09-Jul-2024
DETERMINING WATER LOSS IN MINERAL PROCESSING - A THERMODYNAMIC APPROACH
Peter Radziszewski
Rampart Detection Systems
ABSTRACT
With increasing competition for water resources and the potential impact on the environment, the mining industry’s focus as expanded to include water in addition to en...
08-Jul-2024
Operational Debottlenecking of the Cadia 40-Foot SAG Mill Through Constraint Mapping Analysis
*C. Geoghegan1 and C. Haines1*C. Geoghegan1 and C. Haines1
Newcrest Mining Limited
Cadia Mine Site, Cadia Road, Orange NSW 2800
(*Corresponding author: This email address is being protected from spambots. You need JavaScript enabled to view it.)
*This paper wa...
05-Mar-2024
Will AG Milling Make A Comeback?
*M. S. Powell1, A. N. Mainza2, L. M. Tavares3, M. Yahyaei4, D. K. Weatherley4, A. Vien5, M. Mular5, &G. R. Ballantyne6
1 Liner Design Services, 241 Jesmond Rd, Fig Tree Pocket, 4069, Queensland, Australia
2 Centre for Minerals Research (CMR), Dept of...
23-Feb-2024
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
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
Shelley, Davies, Olivier and Atta Danso
ABSTRACT
This paper reflects on how measurements from inside an operating SAG mill might be used to better understand throughput, mill wear and energy dissipation within the mill. The paper discusses how the measurements might influence and enhance approach...
09-May-2022
Radford, Lovatt, Putland, Becker
Presented at the AusIMM Mill Operators Conference June 2021
ABSTRACT
The Gruyere Gold Project was discovered by Gold Road Resources Limited in October 2013 on the Yamarna Belt 200km east of Laverton in Western Australia. The Feasibility Study for Gruyere, which wa...
20-Jul-2021
Edmunds, Wilkens, Akerstrom, Haines
Presented at the AusIMM Mill Operators Conference June 2021
ABSTRACT
The Ridgeway Concentrator at Newcrest Cadia was commissioned in 2002 as an ABC circuit to treat the ore from the Ridgeway sublevel cave (SLC) at around 5MTPA. Consisting of a single pinion 32’...
20-Jul-2021
Yahyaei, Ye, Hilden, Ruiz, Gavelan
Presented at the AusIMM Mill Operators Conference June 2021
ABSTRACT
Stockpiles and bins are an integral part of every mineral processing plant, and their design and operation play a significant role in plant performance. Size segregation, which is a common phen...
20-Jul-2021
Powell, Yahyaei, Mainza, Tavares
Presented at the AusIMM Mill Operators Conference Brisbane, Australia 23 - 25 June 2021
ABSTRACT
Maintaining the work balance between the primary SAG mill and secondary ball mill(s) is an overlooked bottleneck, and thus opportunity, in an increasing number of circ...
20-Jul-2021
Paz, Ypelaan, Ryan, McInnes
Presented at the AusIMM Mill Operators Conference June 2021
ABSTRACT
The Anglo Gold Ashanti (AGA) Sunrise Dam Gold Recovery Enhancement Project (REP) was an upgrade project to the existing process plant to increase gold recovery. The project required the existing scree...
20-Jul-2021
Palaniandy, Carr, Johns, Williams
Presented at the AusIMM Mill Operators Conference June 2021
ABSTRACT
Haile Gold Mine is an open pitgold mine located in the state of South Carolina, USA. The concentrator consists of a semi-autogenous mill–ball mill–pebble crusher (SABC) circuit, flash flotation,...
20-Jul-2021
Oblokulov, Green, Van Der Spuy, Becker
Presented at the AusIMM Mill Operators Conference June 2021
ABSTRACT
One of the blessings associated with operating a modern metallurgical facility is the multitude of technologies, techniques and processes available to improve and optimise circuits. Circuit...
20-Jul-2021
McIvor, Bartholomew, Arafat, Daavettila, Savola
Presented at the AusIMM Mill Operators Conference June 2021
ABSTRACT
Ball mill media sizing investigations were carried out for the ball mill circuits grinding minus 12.5mm crushing plant product at Lundin’s Eagle Mine base metal concentrator in Hum...
20-Jul-2021
Ballantyne, Foggiatto, Staples, Lane
Presented at the AusIMM Mill Operators Conference June 2021
ABSTRACT
Vertical stirred mills are more frequently being applied at coarser grinding duties as a replacement for ball milling. This trend is being driven by reductions in footprint and operating cost...
20-Jul-2021
Jiancheng He, Shijie Lu, Qiheng Zhu, DuboWang, Xiaoxu Sun, Jianchao Yao
Published in Proceedings of the IMPC2020 Congress, SAIMM
ABSTRACT
Tower mill is considered to have a better regrinding and fine grinding effect compared with ball mill, and its application is much broader. The spiral agitator...
19-Jul-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
Góralczyk, Krot, Radosław, Ogonowski
Abstract
Tumbling mills have been widely implemented in many industrial sectors for the grinding of bulk materials. They have been used for decades in the production of fines and in the final stages of ore comminution, where optimal levels for the enrichment p...
19-Apr-2021
*P. Shelley, I. Molina, D. Patsikatheodorou
Presented at Procemin GEOMET 2019
ABSTRACT
The paper shows how measurements from inside an operating SAG mill are now a reality. The paper discusses how the measurements might affect and enhance energy efficient mill optimisation. Energy efficient comm...
23-Jun-2020
W. Valery, K Duffy, R. Valle, R. Hayashida, A. Jankovic, P. Holtham, E. Tabosa, B. Andrade
Presented at Procemin GEOMET 2019
ABSTRACT
In late 2017, Hatch was engaged to conduct a Mine to Process Optimization project for a large iron ore operation. The operation consists of three iron ore mines...
22-Jun-2020
T.Vizcarra, B. Wong
Presented at SAG Conference Vancouver, Canada September 22 – 26, 2019
ABSTRACT
JKTech has completed a comparative testing program of Bond tests as an addition to its “round-robin” quality control program for JK Drop Weight (JKDW) and SMC tests. Over seventy Bond tests of repr...
22-Jun-2020
M. Bueno, B. Foggiatto, G. Lane
SAG Conference Vancouver, Canada September 22 – 26, 2019
ABSTRACT
This paper presents an assessment and trade-off study of high-pressure grinding rolls (HPGR)-based vs. autogenous grinding (AG)-based milling options for a 65 kt/d copper/gold project. The study rel...
05-May-2020
B Putland & R Sciberras
SAG Conference Vancouver, Canada September 22 – 26, 2019
ABSTRACT
Many ore bodies are getting harder, more abrasive, and lower in grade. One of the issues designers face is minimizing capital and operating costs when treating such ores. Designers often look to secondar...
06-Jan-2020
A. McElroy, M. Powell, J. Tilberg, M. Hilden, M. Yahyaei, M Linna, A. Johnansson
SAG Conference Vancouver, Canada September 22 – 26, 2019
ABSTRACT
The new Aitik autogenous grinding (AG) milling circuit was based on the successful original milling plant at Aitik, with a focus on low life-of-mine o...
06-Jan-2020
*P. Pearce, C. Gagnon, B. Klein, R. McIvor, S. Makni, F. Wang, A. Kumar
SAG Conference Vancouver, Canada September 22 – 26, 2019
ABSTRACT
The aim of the Crush It! Challenge is to accelerate transformative solutions to reduce energy usage in the mill. Natural Resources Canada supported competition...
06-Jan-2020
M Powell, C Bozbay, S Kanchibotla, B Bonfils, A Musunuri, V Jokovic, M Hilden, J Young, E Yalcin
SAG Conference Vancouver, Canada September 22 – 26, 2019
ABSTRACT
In expanding the mine to process considerably more competent ore sources, this semi-autogenous-ball mill-crusher (SABC) circuit with a...
06-Jan-2020
G. Ballantyne, A. Giblett
SAG Conference Vancouver, Canada September 22 – 26, 2019
ABSTRACT
Newmont has a demonstrated history as a leading investor in comminution technology developments. Most notably the cornerstone high pressure grinding rolls (HPGR) demonstration plant at the Lone Tree operat...
06-Jan-2020
R Butar, M Becker, B Putland, I Lovatt, F Kock
SAG Conference Vancouver, Canada September 22 – 26, 2019
ABSTRACT
Continuous improvement is a major key performance indicator (KPI) for many metallurgical operations. Improvement never happens by itself and is rarely attributed to a single party or p...
06-Jan-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
T. Robinson, B. Widdows and J. Rosenberg
MetPlant 2019, September 9-10, Perth, Australia
POSTER ABSTRACT
Increasing mill availability is a key improvement to the productivity of most mine sites. Mills are often running at maximum capacity, consequently any downtime reduces the mine output. O...
25-Sep-2019
T. Waters, A. Rice, J. Seppelt, J. Bubnich, B. Akerstrom
14th AusIMM Mill Operators' Conference 2018, 29-31 August, Brisbane
ABSTRACT
The Concentrator 1 plant at Cadia transitioned from Cadia Hill open pit to the Cadia East block cave ore body in 2013. As a result of this change, major plant upgr...
01-Jul-2019
A Hinde, E. Ford, J. Makola, A. Jain
Copper Cobalt Africa, 10-12 July 2018, Livingstone, Zambia
ABSTRACT
A large contributor to the energy consumption of metallurgical plants is the mill circuit. A popular circuit configuration is one involving a primary open-circuit semi-autogenous mill fol...
23-Apr-2019
K M Bartholomew, R E McIvor and O Arafat
14thAusIMM Mill Operators’ Conference, 29-31 August 2018, Brisbane, Australia
ABSTRACT
It is well known in the industry that good classification system performance is vital to efficient ball mill circuit
performance. But what is meant by good classificati...
22-Oct-2018
M Powell, M Yahyae, J Geronimo, Z Yussupova and P Kumar
14thAusIMM Mill Operators’ Conference, 29-31 August 2018, Brisbane, Australia
Kazakhstan
ABSTRACT
The appropriate design of liners continues to be an issue on many mills worldwide. Loss of milling capacity
especially at liner ch...
22-Oct-2018
B PUTLAND, I LOVATT, A CERVELLIN AND D SCHWANN
14thAusIMM Mill Operators’ Conference, 29-31 August 2018, Brisbane, Australia
Australia
The Mount Carlton project in Queensland's North East sits on a high-sulphidation epithermal style deposit
rich in gold, copper and silver.
Mt Carlton is an open...
27-Sep-2018
R BRADFORD, W GIFT-AGBEY, E GROBLER, P MORGAN AND T VORSTER
14thAusIMM Mill Operators’ Conference, 29-31 August 2018, Brisbane, Australia
Africa
ABSTRACT
The Asanko Gold Mine in Ghana started processing ore from the Nkran pit in January 2016 at a production
nameplate of 3 Mt/a. The flowsh...
27-Sep-2018
R.E. MCIVOR, K M BARTHOLOMEW, O M ARAFAT AND J A FINCH
Mining Engineering, November 2017
United States
ABSTRACT
Since its development, the functional performance equation for ball milling (McIvor, 1988) has facilitated a new understanding of industrial circuit cause and effect relationships, lea...
06-Jun-2018
Dry processing of magnetic iron ores – addressing cost and environmental issues
W Skinner (1) and J R Kelly (2)
AusIMM Iron Ore 2017 Conference, Perth, Australia, 24-26 July 2017. Paper Number: 86
ABSTRACT
The Iron ore industry has reached the end of an unprecedented period of ex...
26-Aug-2017