Ore Sorting

Ore Sorting

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
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
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
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 Over the 2012 to 2014 period, Anglo American Platinum (AAP) has been investigating the application of ore upgrading using XRF sensor technology sourced from Rados International, at Mintek South Africa. This has been in parallel with a more comprehensive sensor sorting investigation at th...
13-Feb-2016
Abstract As high grade ore deposits are depleted, remaining deposits are generally lower grade and require the mining and processing of larger volumes of material per tonne of product. These low grade deposits often contain a large proportion of barren gangue. Pre-concentration aims to remove this...
26-Nov-2015
Abstract In addition to minerals displaying variations in grade within an ore body, blasted rock often concentrates particular minerals preferentially into finer size fractions. Grade engineering strategies seek to exploit intrinsic heterogeneity and grade variability to improve the viability of op...
15-Nov-2015
New Gold Inc.’s New Afton concentrator commenced operation in June 2012, producing a copper-gold-silver concentrate. During the first two years of operation, various optimization efforts have improved mill throughput, recoveries and concentrate grade. Daily mill throughput has increased 20% above th...
03-Apr-2015
Developments in ore sorting technologies have provided the ability to achieve economic dry pre-concentration of ores prior to a grinding/concentration circuit and, in some cases, produce a high grade concentrate of sufficient quality for end use. The use of dual X-ray transmission (XRT) sorting has...
16-Mar-2015
Although ore sorting in mining is not a new concept, sensor-based sorting has failed to gain broad acceptance due to perceived challenges with the technology. In order to gain wider applications, this research focuses on treating waste rock and low-grade ore to identify and test appropriate sensors...
13-Mar-2015
Abstract Ore sorting technology represents a step-change improvement in eco-efficient comminution strategies. Sorting equipment offers the benefit of greatly reducing the comminution energy required per tonne of mineral processed by identifying stones that contain ore and separating them from sto...
02-Oct-2014