The energy needed to concentrate minerals from common

The total specific energy to concentrate copper to an average ore grade of % Cu from Thanatia was calculated as the energy in the ore handling process plus the energy required in its concentration Fig 3 The ore handling process included transportation of the ore with Thanatia composition to the concentration plant

Methods of Ore Pretreatment for Comminution

Amini Beaton Presented at the Preconcentration Digital Conference November 2020 ABSTRACT Application of ore pre treatment technologies such as Grade Engineering and in pit ore treatment require comprehensive analysis to show proven value is being generated by switching away from the current

Exploring the ultrasonic comminution of copper ores

Minerals Engineering Vol 6 No 6 pp 607 617 1993 0892 6875/93 $ Printed in Great Britain 1993 Pergamon Press Ltd EXPLORING THE ULTRASONIC COMMINUTION OF COPPER ORES C YERKOVICi J MENACHOi and L GAETEt The Mining & Metallurgical Research Center of Chile CIMM Box 170 Santiago 10 Chile t University

Effect of mineralogy on grindability A case

Coupling comminution indices and mineralogical features as an approach to a geometallurgical characterization of a copper ore Jonathan Rincona ⁎ Stoyan Gaydardzhieva Lachezar Stamenovb aUniversity of Liège GeMMe Laboratory of Minerals Engineering and Recycling Sart Tilman Campus B52 4000 Liège Belgium

PDF Effect of wet ball milling on copper ore flotation by

Department of Mining Engineering Amirkabir University of Technology Tehran Iran ABSTRACT One of the important parameters in mineral processing is particles morphology which is a function

Pre concentration of copper ores by high voltage pulses

The JKMRC has recently reported a novel ore pre concentration method using high voltage electrical pulses Part 1 of this paper The technique utilises metalliferous grain induced selective breakage under a controlled pulse energy input and size based screening to separate the feed ore into body breakage and surface breakage components leading to ore

The effects of electrical comminution on the mineral

The effects of electrical comminution on the mineral liberation and surface chemistry of a porphyry copper ore Tamsyn Parker Fengnian Shi⇑ Cathy Evans Malcolm Powell The University of Queensland Sustainable Minerals Institute Julius Kruttschnitt Mineral Research Centre Brisbane Australia

Pre concentration of copper ores by high voltage pulses

In order to compare copper deportment between the electrical comminution and conventional mechanical breakage a specially designed JKRBT test was performed 30 particles in the size range mm from Ore sample A were randomly selected

Reduction of Fragment Size from Mining to Mineral

Energy Rock drilling blasting and comminution crushing and grinding consume a vast amount of energy in hard rock mines As mentioned in Sect 1 statistics from hard rock mines indicates that drilling and blasting consumes 2% and comminution does 53% of the total energy input in the whole production chain from mining to mineral processing Spathis

Exploring the ultrasonic comminution of copper ores

However this project proved to be a complete fiasco with results following opposite trend The study of effectiveness of ultrasonic comminution resulted in the energy consumption of 300 400 kW h/t coupled with very little size reduction [38] In 1993 Ref [38] studied the application of ultrasonic on the comminution of Copper ore

Influence of type of lining in high pressure grinding rolls on

The feed material for the HPGR comminution tests was Polish copper ore from two divisions of processing plants of KGHM Polska Miedz Taking into account that industrial comminution operations in mining and mineral processing sector consume over 50% of total energy utilized for ore treatment operations the problem is of a major significance

Energy Efficiency Analysis of Copper Ore Ball Mill

The obtained results proved that the application of HPGR devices in given copper ore comminution circuit may improve the effectiveness of downstream grinding process what leads to improvement of

In situ study of texture breakage coupling in a copper ore

In order to mitigate the energy costs of comminution improved understanding of the breakage behaviour of copper ores is needed Two types of breakage are commonly defined based on where they occur random versus preferential breakage Semsari Parapari et al 2020 Mariano et al 2016 For random breakage the resulting fracture patterns are independent of

Testing of Ore Comminution Behavior in the

Comminution tests are an important element in the proper design of ore beneficiation plants In the past test work has been conducted for particular representative reference samples Within geometallurgy the entire ore body is explored in order to further identify the variation within the resource and to establish spatial geometallurgical domains that show

Element based ball mill and hydrocyclone modelling for a copper ore

Element based ball mill and hydrocyclone modelling for a copper ore grinding circuit this paper aimed at developing the comminution models for copper ore grinding application Process Engineering of Size Reduction Ball Milling Soc Min Eng New York Google Scholar Austin et al 1982 Austin Luckie K Shoji An

Unlocking additional value by optimising comminution

Grade Engineering refers to a range of integrated strategies aiming to improve feed grades by removing low grade uneconomic material prior to energy intensive and inefficient grinding Walters 2016 In this work the impact of preferential grade by size deportment and differential blasting for grade on comminution circuit performance throughput is

Element based ball mill and hydrocyclone modelling for a copper ore

Element based ball mill and hydrocyclone modelling for a copper ore grinding circuit this paper aimed at developing the comminution models for copper ore grinding application Process Engineering of Size Reduction Ball Milling Soc Min Eng New York Google Scholar Austin et al 1982 Austin Luckie K Shoji An

Recovery of copper sulphides mineral grains at coarse rock

Considering that the density of metal rich grains such as sulphides of copper are generally much higher than the density of gangue in many mines metal rich sulphides grains represent only 1 2% of the volume of the mined and processed ore Therefore for typical porphyry copper ore close to 99% of the treated ore volume is a costly by

Benchmarking comminution energy consumption for the

Assuming similar specific energy requirements for other sites comminution of gold and copper ores can be expected to consume about % of global and % of Australia s electricity consumption Therefore concentrating the ore via gangue rejection or grade engineering prior to grinding is likely to achieve the largest positive effect

Evaluating the performance of an industrial scale high

In the metal mining industry comminution regularly involves crushing and grinding and is widely acknowledged as the process consuming the most energy accounting for up to 75 % of the energy consumed by a processing plant Tromans 2008 Crushing is shown to be more energy efficient than grinding in the comminution processing chain; however the grinding

Assessing the Impact of Surface Blast Design Parameters on

Open pit mining remains the dominant method for copper extraction in current operations with blasting playing a pivotal role in the efficiency of downstream processes such as loading hauling crushing and milling This study assesses the impact of surface blast design parameters on the performance of a comminution circuit processing a copper bearing ore The