2020-1-8 · the flotation recovery of Ni, Cu and Co from a nickel-copper sulphide ore. The effect on flotation performance of various parameters such as pH, collector dosage, % solids and depressant dosage at different levels was investigated. Therefore, the main objective of the study was to optimize the process parameters for the flotation of base metals from a nickel-copper sulphide ore. 2. Materials Optimization of Cu–Zn Massive Sulphide Flotation by,2014-7-12 · Sphalerite floatation tests were carried out by using tailings of the first floatation stage at 25.5 % solids (465 g). After adjusting pH at desired level, the copper sulphate (CuSO 4) was added as sphalerite activator, followed by 8 min conditioning. SIPX was then added and the pulp was conditioned for
2010-12-1 · Key words: copper sulphide ores; flotation reagents; modelling; optimization 1 Introduction Froth flotation is a process used for selectively separating hydrophobic materials from hydrophilic. Various factors, such as the type and quantity of chemicals added[1 2], the bubble size[3], stator and rotor configuration[4] and residence time[5] influence the performance of a flotation unit.Optimization of the flotation of copper smelter slags from,2021-3-26 · that copper sulphide minerals are locked and occluded in fayalite gangue. The slags were milled to 75 percent less than 45 microns in order to liberate the copper minerals sufficiently for the flotation tests which were performed on slag samples from three different sources (TSL furnace,
2016-3-2 · commissioning of the CPS plant, hundreds of flotation tests have been conducted on flotation feed and final tails, under various plant conditions, in order to compare the performance of the plant with that under ideal conditions in the laboratory. Based on this test work, the decision was taken to increase the flotation capacity.Copper Sulfide Flotation 911 Metallurgist,2016-4-13 · Copper Sulfide Flotation Circuit. The pulp from the Conditioner is treated in a 10-cell “Sub-A” Flotation Machine and a 4-cell “Sub-A” Flotation machine. Sometimes conditioners are not provided; however, their use insures that reagents are thoroughly mixed into the pulp ahead of flotation.
2010-12-29 · reagents on copper flotation performance are determined. The main steps in the current work are: 1) designing and performing of experiments on laboratory scale; 2) analysis of experimental results to determine the significant factors influencing the copper grade and recovery in the rougher stage; 3) determination of copperPrediction of flotation behavior of sulphide ores by,2012-10-1 · The flotation tests were performed at pH 11.5 and 30% w/w pulp density. 15 g/t MIBC was used in the experiments, the collector dosage was determined according to the copper content of the feed. Air rate is adjusted to 3 lt/min and the flotation time is 0.5–1.5 7 min. The products of the flotation tests were analyzed for Cu, Zn and Fe.
2016-5-16 · In normal practice a recovery of over 90% of the copper which is present as a sulphide is generally possible, whatever the flotation process or circuit employed. As regards the average grade of concentrate, no more can be said than that it depends on the class of the copper-bearing Review, Evolution and Optimization of the Kansanshi ,2016-6-8 · classes. Hundreds of laboratory flotation tests were also simultaneously conducted on flotation feed and final tails, under various plant conditions, in order to compare the performance of the plant with the ideal conditions of the laboratory. Table II. Contribution of each mineralogical class to the copper losses in the final tails.
2010-12-1 · Key words: copper sulphide ores; flotation reagents; modelling; optimization 1 Introduction Froth flotation is a process used for selectively separating hydrophobic materials from hydrophilic. Various factors, such as the type and quantity of chemicals added[1 2], the bubble size[3], stator and rotor configuration[4] and residence time[5Optimization of the flotation of copper smelter slags ,2021-3-26 · that copper sulphide minerals are locked and occluded in fayalite gangue. The slags were milled to 75 percent less than 45 microns in order to liberate the copper minerals sufficiently for the flotation tests which were performed on slag samples from three different sources (TSL furnace,
2016-8-4 · flotation of copper oxide or mixed ores is sulphidization, which was first developed with industrial success on Pb–Zn oxide ores in Review, evolution, and optimization of the treatment of Kansanshi mixed copper ore by C. Ngulube*, C. Chongo*, and F.X. Paquot* .2&,3, Over the last six years, the Kansanshi copper-gold mine has continued toPrediction of flotation behavior of sulphide ores by,2012-10-1 · Flotation tests were conducted in a 3 lt modified Leeds flotation machine. The flotation tests were performed at pH 11.5 and 30% w/w pulp density. 15 g/t MIBC was used in the experiments, the collector dosage was determined according to the copper content of the feed. Air rate is adjusted to 3 lt/min and the flotation time is 0.5–1.5 7
2010-12-29 · flotation of porphyry copper and copper molybdenum ores[6]. In copper flotation plants, an increase of 1%−2% in recovery and/or grade is economically remarkable. In this work, reagent optimization is a very important issue, and much time and attention are spent on the optimization of flotation reagents in order to provide theAN INVESTIGATION OF COPPER RECOVERY FROM A ,2010-1-19 · improvement of sulphide-oxide copper ores processing through the use of mixed collector systems has surged. The flotation of a natural porphyry copper ore with bornite and malachite was investigated via fundamental work with pure minerals and a bench-scale testing regime. The
Typical lead-copper-zinc sulphide minerals were found hard to be separated selectively by froth flotation in the plant practice operation due to part of sphalerite was progressively entrapped into lead-copper bulk flotation. A series of de-zincing on lead-copper flotation tests has been conducted in the laboratory to reduce unwanted zinc content.Study of Flotation Parameters for Copper Recovery from,2020-4-1 · For flotation tests different conditions were explored in order to search for maximum recovery of copper. The aim of these flotation tests was to obtain theconcentrate with a high grade of As and high recovery of Cu. It has been established that butyl xanthate (BX) was uses as a collector at the dosage of 100 g/t,the optimum flotation time was 16
2021-1-7 · sulphide minerals. Prior to the flotation tests, samples of 500 g were milled in 250 ml of Marrakech drinking water using a Denver carbon-steel ball mill. The size fractions studied in this work were d 80 = 60, 120, and 180 μm. Flotation experiments Flotation tests were carried out on 500 g samples of milled oreEffect of pulp potential on the flotation of a sulfide,2005-8-1 · Surface oxidation of secondary minerals, such as chalcocite, bornite and digenite, present in the Salobo copper ore makes their flotation difficult and requires excessive reagent consumptions. Two possibilities for reducing the collector and fr other additions were investigated. These were sulfidization of the pulp prior toflotation and using nitrogen to replace air in flotation.
2021-3-26 · that copper sulphide minerals are locked and occluded in fayalite gangue. The slags were milled to 75 percent less than 45 microns in order to liberate the copper minerals sufficiently for the flotation tests which were performed on slag samples from three different sources (TSL furnace,Flotation of copper sulphides assisted by high intensity,2015-9-30 · Flotation of sulphide fines results, using CRF technique and HIC combined (CRF–HIC), were compared with a ‘‘standardized” mill laboratory procedure. Concentrate copper recoveries were of the order of 7– 18 per cent higher and their process kinetics
2010-1-19 · improvement of sulphide-oxide copper ores processing through the use of mixed collector systems has surged. The flotation of a natural porphyry copper ore with bornite and malachite was investigated via fundamental work with pure minerals and a bench-scale testing regime. TheInvestigating the Potential of HydroFloat™ Coarse ,2021-5-19 · Investigating the Potential of HydroFloat (TM) Coarse Particle Flotation Techniques on Copper Sulphide Ores. P J Mehrfert. 49th Annual Canadian Minerals Processors Conference Proceedings, Ottawa, Canada, 2017. ABSTRACT. Recovery of mineralized coarse particles is notoriously low in conventional concentrators that treat copper porphyry ores.
2020-4-1 · For flotation tests different conditions were explored in order to search for maximum recovery of copper. The aim of these flotation tests was to obtain theconcentrate with a high grade of As and high recovery of Cu. It has been established that butyl xanthate (BX) was uses as a collector at the dosage of 100 g/t,the optimum flotation time was 16THE EFFECT OF SULPHITE ON THE XANTHATE-INDUCED ,2003-10-22 · bisulphite on the xanthate-induced flotation of copper-activated pyrite with nitrogen purging was found to be similar. In the presence of sulphite, the recovery of pyrite was reduced from 69.7% to 53.2% at pH 7 and from 69.3% to 57.7% at pH 9. During all flotation tests, a decrease in Eh of 40 mV was observed after sodium sulphite addition,
2014-12-10 · flotation selectivity between galena and sphalerite. The optimization of the reagent suite is based on the mechanism of sphalerite activation by dissolved heavy metal ions. Chapter 2 deals with an overview on the flotation of sulphide minerals with thiol collectors and the activation of sphalerite by heavy metal ions such as copper and lead.Optimization of chlorite and talc flotation using,2021-1-7 · sulphide minerals. Prior to the flotation tests, samples of 500 g were milled in 250 ml of Marrakech drinking water using a Denver carbon-steel ball mill. The size fractions studied in this work were d 80 = 60, 120, and 180 μm. Flotation experiments Flotation tests were carried out on 500 g samples of milled ore
2005-8-1 · Surface oxidation of secondary minerals, such as chalcocite, bornite and digenite, present in the Salobo copper ore makes their flotation difficult and requires excessive reagent consumptions. Two possibilities for reducing the collector and fr other additions were investigated. These were sulfidization of the pulp prior toflotation and using nitrogen to replace air in flotation.FLOTATION OF COPPER AND NICKEL SULFIDES FROM ,A method for the flotation of nickel and copper sulphide minerals from talcose bearing ores using an alkaline circuit in which at least one of the alkaline reagents is soda ash or ammonium hydroxide and following conditioning of the pulp with a collecting agent of the xanthate family to activate the nickel and copper sulphide materials, the pulp is conditioned with a flocculating agent to
