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
A high-level study into mining energy use for the key mineral commodities of the future.
Author
Marc Allen, Technical Director, engeco
Report commissioned by The Weir Group PLC
Executive Summary
The mining industry plays a critical role at the heart of modern global economy, extracting and pro...
10-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
Gursky, Kuzio, Krot, Zimroz
Abstract
The low energy efficiency and excessive power of electric motors of large-scale vibrating machines for processing bulk materials motivated a new design of the inertial drive. This drive consists of one motor and two coaxial unbalanced masses, whose rotational f...
19-Apr-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
Krot, Zimroz, Michalak, Wodecki, Ogonowski, Drozda, Jach
Abstract
The minerals processing enterprises are widely using vibrating machines to separate different fractions of materials. Sieving efficiency is greatly dependent on particle trajectories, or orbit, of periodical motion over the sieving...
19-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
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
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
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
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
Keeney, Beaton, Scott, La Rosa, Amini, Rutter, Faramarzi
Presented at the Preconcentration Digital Conference November 2020
ABSTRACT
Anglo American’s Los Bronces copper mine in Chile has been conducting detailed assessments investigating value adding options for their asset. The mine has conducte...
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
Assimi, Koch, Garcia, Wagner, Neumann
Presented at the Preconcentration Digital Conference November 2020
ABSTRACT
Run-of-Mine (ROM) stockpiles are the inventory of valuable materials extracted from the mine. Depending on the customer requests, a selective addition of ore from stockyards should be...
12-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
Barbosa, Bergerman, da Fonsecaca
Published in Proceedings of the IMPC2020 Congress, SAIMM
ABSTRACT
Located in the state of Pará, Brazil, the Sossegocopper and gold mine consists of a heterogeneous geological deposit. Its complexity derives from the hydrothermal alteration, the ore-forming event,...
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
Jenkin, Revell
Presented at the Preconcentration Digital Conference November 2020
ABSTRACT
This paper presents an analysis of significant Australian-based R&D programs focussed on the minerals industry, which was commissioned by CRC ORE. The landscape analysis may assist organisations with R&...
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
Pamparana, Kracht, Ortiz, Haas
Presented at COM 2019, At Vancouver, Canada
ABSTRACT
This work explores the effect of ore hardness variability on the design of a solar photovoltaic system with battery storage and grid backup, to operate a semi-autogenous grinding mill (SAG). First, a case of two s...
23-Jun-2020
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
*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
*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
*G. Ballantyne
Presented at SAG Conference Vancouver, Canada September 22 – 26, 2019
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 consume...
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
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
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
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