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
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
*K. Tungpalan, A. Nguyen, C. Evans, E. Manlapig, K. Nguyen
Presented at Procemin GEOMET 2019
ABSTRACT
Ore texture represents the fundamental ore properties that significantly influence processing behaviour. However, the current measurement to obtain detailed textural information is through the Q...
23-Jun-2020
*P. Lind, K. Erwin, R. Chandramohan, D. Tweed, G. Lane, P. Staples, S. Hille, B. Foggiatto, J. Awmack, B. Patterson
Presented at SAG Conference Vancouver, Canada September 22 – 26, 2019
ABSTRACT
Newmont Goldcorp’s Peñasquito operation, located in the state of Zacatecas in northwest Mexico, is cur...
23-Jun-2020
M. Sherman, A. Collins
Presented at World Gold 2019
ABSTRACT
The ever changing demands of providing operating teams with grinding circuits that meet their needs has resulted in equipment suppliers offering a broader range of grinding equipment and researchers investigating more efficient methods...
23-Jun-2020
W. Valery, K. Duffy, R. Faveere, R. Hayashida, A. Jankovic, E. Tabosa, I. Yelkin
Presented at IMPC 2018
ABSTRACT
The mining industry faces growing challenges from more complex and lower grade deposits, rising costs, limited energy and water availability, and increasing societal pressure to operat...
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
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
L. Vollert, B. Akerstrom, B. Seaman, J. Kohmuench
COM Copper 2019 Conference 18 - 21 August Vancouver
ABSTRACT
In August 2018, the first full-scale HydroFloatTM cells for the recovery of coarse composited copper and gold were commissioned at Newcrest’s Cadia Valley operation in New South Wa...
04-Mar-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
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
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
R Diaz-Colunga, S Gomez-Hernandez and R Espinosa-Gomez
MetPlant 2019, September 9-10, Perth, Australia
ABSTRACT
Fresnillo Plc (Fresnillo) is a Mexican Company owned by the “BAL Group”, focused on the production of gold and silver. It was established in 2008, initially consisting of three com...
24-Sep-2019
K Ehrig, V Liebezeit, M Smith, B Pewkliang, Y Li and E Macmillan
MetPlant 2019, September 9-10, Perth, Australia
ABSTRACT
Copper-(Fe)-sulfide ore deposits typically have Cu grades varying from 0.5 to 5%. This equates to approximately 1.5 to 15% sulfide minerals, hence 85 to 98.5% of the rema...
24-Sep-2019
B. Simonian
Mount Milligan mine performance update, 51st Canadian Mineral Processors conference, 22-24 January 2019, Ottawa, Canada
ABSTRACT
The Mount Milligan mine, located in central British Columbia, began operation in September 2013 with a design nameplate capacity of 62,500 dry metric tonnes...
19-Feb-2019
O. Mejia and B. Klein
Maintaining grinding efficiency and mill throughput when liners wear, 51st Canadian Mineral Processors conference, 22-24 January 2019, Ottawa, Canada
ABSTRACT
A study was undertaken to investigate the relationship between mill liner wear and grinding energy efficiency and to...
19-Feb-2019
Rajiv Chandramohan, Robert Braun, Greg Lane, Kirsty Hollis, Johnson Le, Dirk Baas
14thAusIMM Mill Operators’ Conference, 29-31 August 2018, Brisbane, Australia
ABSTRACT
The Phu Kham Copper-Gold Operation (Phu Kham) is located in northern Laos, approximately 140 kilometres from the capital, Vienti...
20-Dec-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
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
Bern Klein, Baker Giyani, David Rahal
49th Annual Conference of Metallurgists, Vancouver, Canada, August 27-30, 2017.
Abstract
Stirred media mills have proved to be more energy-efficient than the conventional ball milling for fine grinding applications. The mill performance is governed b...
26-Sep-2017
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
G R BALLANTYNE, A MAINZA AND M S POWELL
PRESENTED AT WORLD GOLD CONFERENCE 2015, JOHANNESBURG, SOUTH AFRICA, 29 SEP – 1 OCT, 2015
ABSTRACT
The mining industry has acknowledged the need for an effective method and platform to benchmark comminution energy intensity and motivate action to impr...
18-Jul-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
S NKWANYANA AND B LOVEDAY (1)
PRESENTED AT COMMINUTION ’16, MINERALS ENGINEERING INTERNATIONAL, PUBLISHED IN MINERALS ENGINEERING VOLUMES 103-104, BARRY WILLS (ED), APRIL 2017.
ABSTRACT
Ball-mills are used widely for secondary grinding. Loveday (2010) reported on laboratory tests in which s...
18-Jul-2017
G S ANDERSON1 AND N W MCDONALD2
13TH AUSIMM MILL OPERATORS’ CONFERENCE, PERTH, WA, 10-12 OCTOBER 2016.
ABSTRACT
The IsaMill™ was originally developed to address liberation issues at Mount Isa Mines (now Glencore) operations, McArthur River and Mount Isa in the early 1990s. Follow...
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
Comminution Circuit Design Considerations
G Lane (1), B Foggiatto (1), R Braun (1), M P Bueno (1), P Staples (2) and S Rivard (2)
49th Annual Canadian Minerals Processors Conference, Ottawa, Canada, 17-19 January 2017
ABSTRACT
This paper demonstrates the selection of grinding circui...
26-May-2017
The Effect of Choke Feeding a Gyratory Crusher on Throughput and Product Size
J -F Dupont (1), J McMullen (1) and D Rose (2)
49th Annual Canadian Minerals Processors Conference, Ottawa, Canada, 2017
ABSTRACT
The Detour Lake mine is located 200 km northeast of Timmins, Ontario, Canada...
26-May-2017
Optimisation of installed mill power post-installation of secondary crushing circuit at Northparkes Mines.
Y Sulianto, T Trott, D Morgan, T Bell, F Kock and B G Putland
AusIMM Mill Operators Conference 2016
ABSTRACT
Northparkes installed and commissioned a secondary crushing circui...
26-Apr-2017
Simplified hybrid semi-autogenous grinding mill control – explanation and practical results at the Porgera concentrator
S Ngunz, F van Zyl, F Orrante, E Beltran, M Westcott and S Wilson
AusIMM Mill Operators Conference 2016
ABSTRACT
The primary control objective of the project is to...
26-Apr-2017
The transition from semi-autogenous to autogenous milling at Waihi Gold
C Haines and D Bertoldi
AusIMM Mill Operators Conference 2016
ABSTRACT
The Waihi Gold Mine (WGM) operated by OceanaGold New Zealand Limited is a wholly owned subsidiary of the OceanaGold Corporation of Australi...
26-Apr-2017
Grinding circuit practices at Newmont
A Giblett and S Hart
AusIMM Mill Operators Conference 2016
ABSTRACT
In 2015 operations under the ownership and/or management of all Newmont Mining Corporation subsidiaries (Newmont) produced 5.7 Moz of gold and 619 Mlb of copper from mining opera...
26-Apr-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
G Harbort and D Zoetbrood
ABSTRACT
The Phu Kham copper-gold operation in the Laos People’s Democratic Republic (PDR) is owned and operated by Phu Bia Mining Limited. PanAust Limited holds a 90 per cent interest in Phu Bia Mining Limited, with the remaining ten per cent held by the Laos PDR Gov...
15-Feb-2017
The way we make decisions about adopting energy efficient comminution technologies is complex, and there are multiple factors at play. Depending on the company and individual personalities, the weight of different motivating influences varies between:
energy cost
environmental co...
16-Aug-2016
Abstract
The comminution energy curve is a profoundly simple graphical technique that displays detailed operating efficiency information for industrial comminution processes. The database underlying the methodology has recently more than doubled, to now contain a substantial fraction of the interna...
31-May-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
Simulation work was carried out to analyse how feeding a finer size distribution to a single stage SAG mill in closed circuit with hydro cyclones at Freda Rebecca Gold Mine would affect throughput and specific energy consumption using an Excel based milling process simulator developed by...
07-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
AngloGold Ashanti was an early adopter of High Pressure Grinding Roll (HPGR) technology at both Tropicana Mine and the Gramalote Project. The increased energy efficiency achieved by HPGRs through confined bed breakage has been extensively researched in small scale tests, but slow industry...
01-Apr-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
Mill filling is an important operational parameter in a SAG mill circuit and by its control and optimisation it can produce significant improvements in production capacity and energy efficiency. However, it is industry practice to report mill load as the total output given by load cells, o...
20-Feb-2016
Abstract
The breakage characteristics of a two-component ore in a confined bed was studied in this work in order to predict the breakage behaviour of a multi-component ore from the properties of individual components. Bed compression tests with each single component and blended components at differ...
19-Feb-2016
Abstract
The slurry level in AG/SAG and ball mills has an influence on their power draw, which in some instances can be profound. This is particularly the case with so-called slurry pooling in AG/SAG mills which can result in significant lowering of power draw. From a predictive viewpoint there are...
19-Feb-2016