*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

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

S. Michaux & L. O'Connor ABSTRACT Geometallurgy is a comparatively new discipline in mining that involves the fundamental integration of multiple conventional technical areas of the industry, where the outcome is a genuinely new methodology. It can be a daunting prospect to be tasked with desi...

08-Jun-2020

Larson Presented at the SAG Conference Vancouver, Canada September 22 – 26, 2019 Abstract While stirred mills in regrind and fine grinding duties have become more accepted, there continue to be questions about the testwork used for scaleup and comparisons. One reliable reality check for any futur...

01-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

Already have a plant? What eco-efficient comminution could mean for you.

15-Jan-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

C. CARRASCO1, M. GAHONA1, D. LA ROSA2, G. SHAPLAND2, N. BEATON2, & *E. AMINI2 1BHPAv. de la Minería 501, Antofagasta, Chile 2CRC ORETechnology Transfer Centre, Queensland Centre for Advanced Technologies (QCAT)1 Technology Crt., Pullenvale, QLD, 4069, Australia (*Corresponding author: e.amini@c...

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

G. Ballantyne ABSTRACT Assessment of comminution energy intensity has traditionally been confined to the crusher and mill motor power consumption. However, a measure of ancillary equipment power and the embodied energy consumed through media wear is required to compare disparate equipment types an...

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

GREG LANE1, SIMON HILLE2, JOE PEASE3, & MATT PYLE4 1Ausenco, 2Newmont Goldcorp, 3Mineralis, 4Ausenco 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 tonn...

06-Jan-2020

17-Dec-2019

17-Dec-2019

E BAAWUAH1, C KELSEY2, J ADDAI-MENSAH3 AND W SKINNER4 1. PhD student, Future Industries Institute, University of South Australia, Mawson Lakes, SA 5095. Email: This email address is being protected from spambots. You need JavaScript enabled to view it.. FAusIMM, Technical Director, IMP Technologies P/L, 83A Proctor Rd, Hope Forest, SA 5172. Email: chri...

16-Dec-2019

G Borg, O Scharfe, A Kamradt, and N Meyer MetPlant 2019, September 9-10, Perth, Australia POSTER ABSTRACT High-velocity impact breakage is an option to increase comminution efficiency significantly. The widespread application of traditional ball mills and SAG mills in comminution is cha...

25-Sep-2019

S.Morrell MetPlant 2019, September 9-10, Perth, Australia ABSTRACT Whether it is for the purposes of the design of new comminution circuit, a brownfield expansion or a geometallurgical program, one of the principal keys to success is to “know your orebody”. To do so requires the formulation and e...

24-Sep-2019

Hamid Manouchehri Comminution '18, April 16-19, Cape Town, South Africa ABSTRACT As an energy intensive industry, mining consumes about 6-7% of total world’s energy to produce raw materials for subsequent industries. Grinding, however, is the most energy intensive process in mining which is respo...

25-Jul-2019

Gregor Borg, Oscar Scharfe, Felix Scharfe, Pablo Gonzalez Jimenez, Salvador Gomez Physical Separation 2019, June 13-14, Falmouth, UK ABSTRACT Efficiency improvement in the comminution of ores has been on the international agenda of the mining industry for some time but substantial advances are st...

09-Jul-2019

Y. Dumais, R. Lemire, T. Banerjee and H. Weitz Canadian Mineral Processors Conference, 23-25 January 2018, Ottawa, Canada ABSTRACT Agnico Eagle LaRonde produces over 300,000 ounces of gold annually, along with silver, zinc and copper by-products. The LaRonde plant consists of a conventional SAG a...

28-Jun-2019

Farhad Faramarzi*, Vladimir Jokovic, Robert Morrison, Sarma S Kanchibotla  Comminution '18, 22-25 January 2018, Ottawa, Canada ABSTRACT  The standard JK drop weight test breaks single particles at five size fractions at different energy levels by dropping a given weight from a certain h...

24-Apr-2019

F.C.F. Batista, R. deS. Almeida, L. deA. Silva, T. Banerjee, D. Gudgeon CMP 2018, 23-25 January 2018, Ottawa, Canada ABSTRACT Yamana Chapada’s mine is one of the larger copper-gold mines in Brazil. The mine is located in Goias state, in the central part of Brazil. The mine has estimated Mineral R...

24-Apr-2019

K. Bhadani, G. Asbjörnsson, E. Hulthén, M. Bengtsson, M. Evertsson  Comminution '18, 16-19 April 2018, Cape Town, South Africa. ABSTRACT Optimization is a pivotal point in distinguishing the competitiveness between industries that are developing, designing and operating products and pro...

24-Apr-2019

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

Christopher J. Greet, John Twomey and Allen Chung 43rd Annual Meeting of the Canadian Mineral Processors, 18-20 January 2011, Ottawa, Canada ABSTRACT It is widely accepted that the type of grinding media has an impact on the grinding chemistry and subsequent flotation behaviour of the sulphide mi...

02-Jan-2019

E Baawuah, C Kelsey, J R Kelly, J Addai-Mensah and W Skinner 14thAusIMM Mill Operators’ Conference, 29-31 August 2018, Brisbane, Australia ABSTRACT Comminution continues to be the most capital-intensive unit operation in mineral processing. The fundamental purpose of comminution is to libera...

20-Dec-2018

T G Vizcarra, M G Hart, A T Karbowiak and T J Napier-Munn 14thAusIMM Mill Operators’ Conference, 29-31 August 2018, Brisbane, Australia ABSTRACT Squeezing extra performance from existing equipment (‘sweating the assets’) is key to continuous improvement initiatives, particularly during times...

20-Dec-2018

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

A Giblett and B Putland 14thAusIMM Mill Operators’ Conference, 29-31 August 2018, Brisbane, Australia ABSTRACT This paper provides a simple guiding framework for grinding circuit optimisation, focussing on common themes in past optimisation success stories, the conditions for success and techniq...

23-Oct-2018

B Wong and T G Vizcarra 14thAusIMM Mill Operators’ Conference, 29-31 August 2018, Brisbane, Australia ABSTRACT Optimisation projects are regularly undertaken without knowing the root cause of an issue. It is all well and good to trial a multitude of flotation reagents, change the operating...

22-Oct-2018

A.R. BATCHELOR, A.J. BUTTRESS, D.A. JONES, J. KATRIB, D. WAY, T. CHENJE, D. STOLL, C. DODDS, S.W. KINGMAN Minerals Engineering, 2017 ABSTRACT A pilot scale microwave treatment system capable of treating 10–150 t/h of material at 10–200 kW was designed, constructed and commissioned in order t...

05-Jul-2018

J J FRAUSTO, G R BALLANTYNE, K RUNGE, M S POWELL AND R CRUZ MetPlant 2017 - Metallurgical Plant Design and Operating Strategies – World’s Best Practice, 11–12 September 2017, Perth, Australia ABSTRACT Hydrocyclones are the most widely used device for classification in a grinding circuit. However,...

06-Jun-2018

G Harbort and K Quan MetPlant 2017 – Metallurgical Plant Design and Operating Strategies – World’s Best Practice, 11-12 Sep 2017, Perth, Australia Abstract Traditional engineering practice for concentrator design uses a mixture of risk minimisation options and capital minimi...

26-Oct-2017

S Palaniandy, M Spagnolo, R Halomoan, H Zhou and H Ishikawa MetPlant 2017 – Metallurgical Plant Design and Operating Strategies – World’s Best Practice, 11-12 Sep 2017, Perth, Australia Abstract The Karara Mine concentrator commenced operation in November 2012 to produce hig...

26-Oct-2017

G R Ballantyne, M Di Trento, I Lovatt and B Putland MetPlant 2017 – Metallurgical Plant Design and Operating Strategies – World’s Best Practice, 11-12 Sep 2017, Perth, Australia Abstract The Tropicana Gold Mine, owned by AngloGold Ashanti Australia Ltd (70% owned and managed...

26-Oct-2017

D David MetPlant 2017 – Metallurgical Plant Design and Operating Strategies – World’s Best Practice, 11-12 Sep 2017, Perth, Australia Abstract Amongst those whose task it is to design tumbling mills and other comminution machines there is a religious divide between devotees...

26-Oct-2017

Holger Plath, Holger Plath, Christoph Beyer, David Kruth, Johann Knecht, Wolfgang Baum 49th Annual Conference of Metallurgists, Vancouver, Canada, August 27-30, 2017. Abstract Although HPGR technology has been recognized since the late 1980s as a potential powerful to...

26-Sep-2017

Ryo Kawarabuki, Masato Kosugi, J.V. Satur, K. Mitsuhashi, M. Kawata, Yoshiaki Kon, B. Calabia, T. Takagi, G. Dodbiba, Kengo Horiuchi, Chiharu Tokoro, Yusuke Iwazaki, and Toyohisa Fujita 49th Annual Conference of Metallurgists, Vancouver, Canada, August 27-30, 2017. Abstract The liberation of...

26-Sep-2017

The Energy Saving Technology of Beneficiation of Iron Ore V V KARMAZIN, M A BIKBOV AND A A BIKBOV MAGNETIC AND ELECTRICAL SEPARATION, VOL 11 (4), PP 211-224 ABSTRACT The qualitative and quantitative evaluation of liberation of economic minerals and thelevel of contamination of the process produc...

25-Aug-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

P STAPLES, G LANE, R BRAUN, B FOGGIATTO AND M P BUENO PRESENTED AT SAG CONFERENCE, SIXTH INTERNATIONAL CONFERENCE ON SEMIAUTOGENOUS AND HIGH PRESSURE GRINDING TECHNOLOGY, VANCOUVER, 20-24 SEPTEMBER 2015. ABSTRACT Autogenous (AG) and semi-autogenous (SAG) grinding mills are considered a mature tec...

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 G KELSEY AND J R KELLY (1) PRESENTED AT IMPC 2016: XXVIII INTERNATIONAL MINERAL PROCESSING CONGRESS PROCEEDINGS, SEPTEMBER 11-15, QUEBEC CITY, CANADA ABSTRACT Dry crushing trials at pilot scale have shown that the IMPTEC Super-fine Crusher has the capacity to generate ultra-fine products from h...

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