Resources

Abstract More complex ore bodies with lowering grades increase the challenges of maintaining high throughput, energy efficiency and required particle size for optimal downstream processing in grinding circuits. Continuous and often rapidly changing characteristics of the mill feed requires consta...
26-Nov-2015
ABSTRACT A process involving pre-concentration, drum agglomeration and column leach was evaluated for nickel laterite ores from Western Australia. The result showed that pre-concentration by selective comminution followed by size classification has a potential to upgrade nickel laterites and to i...
25-Nov-2015
ABSTRACT Blasting plays a major role in the fragmentation of rock in open pit mining, which is then crushed and processed before the final product is obtained. Tailoring the blasting method to suit rock mass characteristics can lead to significant improvements downstream. Mine to Mill is a method...
25-Nov-2015
ABSTRACT The ability to rank individual mines by comminution energy intensity in an international database was identified as a priority by the Coalition for Energy-Efficient Comminution in 2012 (Napier-Munn, Drinkwater, & Ballantyne, 2012). Providing a tool to compare the comminution energy int...
15-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
ABSTRACT In non-ferrous metal mining operations, it is generally necessary to crush and grind the ore to a very fine particle size to effectively liberate the contained mineral from the host rock. Fragmentation by blasting is the first stage of this comminution process. Numerous studies and indepen...
09-Sep-2015
ABSTRACT The stirred milling of nickel laterites offers possibilities for improving liberation and selective size reduction of soft nickel-bearing minerals in laterites. Batch grinding tests were performed in a netzsch™ lME4 stirred mill on siliceous goethitic, goethitic, and saprolitic nickel la...
13-Aug-2015
Fine grinding, to P80 sizes as low as 7 lm, is becoming increasingly important as mines treat ores with smaller liberation sizes. This grinding is typically done using stirred mills such as the Isamill or Stirred Media Detritor. While fine grinding consumes less energy than primary grinding, it can s...
13-Aug-2015
ABSTRACT To recover more valuable ore and considering the complexity of minerals, the need to grind finer is increasing. To reach the desired fine grinding targets using the existing grinding media size, the energy consumption is increasing exponentially. As already proved at this conference, sma...
21-Jul-2015
Mathematical modeling in conjunction with mineral characterization is widely used as a method for design and optimization of comminution circuits, to simulate the processes of crushing, grinding and classification. An important input parameter to the simulation models is the Run-of-Mine Particle Siz...
15-Jul-2015
Abstract A stirred milling model, based on the concept of shear–volume power, was developed and applied to geometries typically found in mineral processing systems. Generalising this model permits its use to model more complex mill geometries, such as those describing a tapered disk mill and the Co...
12-Jun-2015
Presentation by Dr A Kwade of the Institute for Particle Technology. Prof. Arno Kwade is a member of the Global Comminution Collaborative (GCC). The GCC is a collaborative research effort to address the challenges of sustainable comminution in the mining industry.   The Institute for Part...
12-Jun-2015
Mathematical modeling in conjunction with mineral characterization is widely used as a method for design and optimization of comminution circuits, to simulate the processes of crushing, grinding and classification. An important input parameter to the simulation models is the Run-of-Mine Particle Siz...
15-May-2015
SAIMM Base Metals conference 2009 - 13/04/2009 Abstract DRAMP was approached by the ARM/Lion Ore JV during July 2006 to conduct a feasibility study and Control Budget Estimate for a new Greenfield’s project for their NKOMATI Ni mine 45km east of Machadadorp. The scope included the evaluation a...
17-Apr-2015
Abstract DRAMP was approached by the ARM/Lion Ore JV during July 2006 to conduct a feasibility study and Control Budget Estimate for a new Greenfield’s project for their NKOMATI Ni mine 45km east of Machadadorp. The scope included the evaluation and review of previous studies as well as a techno-...
17-Apr-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
Abstract The total energy consumption for ore comminution will further increase within the next decades. One contribution to minimise the increase is to use more efficient comminution equipment. Vertical-roller-mills (VRM) are an energy-efficient alternative to conventional grinding technology. O...
03-Apr-2015