"effect of sludge to flotation recovery of copper"

RECOVERY OF COPPER FROM OXIDE COPPER ORE BY …

2014-12-24 · RECOVERY OF COPPER FROM OXIDE COPPER ORE BY FLOTATION AND LEACHING Kiraz, Emirhan M.S., Department of Mining Engineering Supervisor: Prof. Dr. Mustafa Ümit Atalay December 2014, 65 pages The aim of this study was the recovery of copper from the oxide copper ore by froth flotation and agitating sulphuric acid (H 2 SO 4) leaching.

Probing the Effect of Water Recycling on Flotation through ...

Copper recovery for each spiked anion concentration is shown in Figure 3. From 3, 5 and 10 SPW, copper recovery increased, although a dip is seen at 5 SPW compared with 3 SPW, showing a similar trend with that of the solid recoveries shown in Figure 2. The 5 SPW shows a slight increase in grade, while 3 and 10 SPW show the same copper grade.

Flotation of Nickel-Copper Sulphide Ore: Optimisation of ...

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 ...

THE EFFECT OF COPPER SULPHATE ON FROTH STABILITY

2020-12-8 · THE EFFECT OF COPPER SULPHATE ON FROTH STABILITY Wadzanai Nyabeze BSc(Eng) in Chemical Engineering, University of Cape Town ... was used as a measure of hydrophobicity which was directly linked to the flotation recovery. The adsorption of reagents onto the mineral surfaces was confirmed by the ... The decrease in froth stability could have an ...

The Effects of Water Recycling on Flotation at a North ...

The Effects of Water Recycling on Flotation at a North American Concentrator—Part 1() Antonio Di Feo 1*, Saviz Mortazavi 1, Sean Langley 1, Lucie Morin 1, Gauri Prabhakar 1, André Demers 1, Ian Bedard 2, Konstantin Volchek 1. 1 Natural Resources Canada, CanmetMINING, Ottawa, Canada.

Leaching of Sludge from the AVR Process with …

2015-5-31 · copper cyanide, hydrogen cyanide, sodium bisulfate, Na 2 [Cu(CN) 3] + H 2 SO 4 = CuCN + 2HCN + 2NaH (3) In the AVR cyanide recovery process becomes 93.6% and sulfuric acid consumption is 9.1 kg/T. The AVR process is designed not only for the destruction of cyanide in effluents and sludge formation, but rather

The effect of clay minerals on the process of flotation of ...

2019-3-15 · Cumulative gold, copper, and mass recovery, as a function water recovery in the flotation of a high clay ore with F-100 dispersant and without dispersant after grinding with a) mild steel and b) stainless steel (adapted from Wei et al., 2013). (For interpretation of the references to colour in this figure legend, the reader is referred to the ...

Effect of pH on the Recovery and Grade of Base Metal ...

2011-9-10 · Abstract—This study investigated the effect of pH on the recovery and grade of the Platinum Group Metals (PGMs) and base metal sulphides from the UG2 ore of the bushveld complex. This was achieved through running a series of test work in a Denver flotation cell at varying pH 6-11 at constant reagent dosage. The UG-2 reef is characterized by two

The effect of grinding conditions on the flotation of a ...

2003-11-1 · The high copper recovery in the first minute of flotation after grinding in a lined mill and stainless steel grinding media, shown in Table 1, confirms the hypothesis that the existence of an oxidising environment during grinding enhances the floatability of copper minerals. Grinding conditions that generated a reducing environment yielded low ...

Optimization of Chalcopyrite Froth Flotation Process by ...

The clays in colloidal form are suspended inside the water and incorporates the ore of interest avoiding copper recovery during the flotation stage [9]. This effect is reduced by adding saline solution and in this way reducing the swelling ability of the clay in the flotation pulp [10; 13].

Co-treatment of flotation waste, neutralization sludge ...

2017-12-28 · In generally, such copper slag is subjected to recovery copper through flotation, which results in the generation of a large number of flotation wastes, so-called flotation waste of copper slag (FWCS) (Min et al. 2015; Xie et al. 2013). As for the arsenic-containing exhaust gas, it is commonly washed with diluted acid, accompanied by the ...

The Effect of Oxidation on the Flotation Behaviour of ...

2016-6-14 · The Effect of Oxidation on the Flotation Behaviour of Nickel-CopperOres S Kelebek 1 ABSTRACT Surface oxidation is one of the most imponant factors that influence the flotation selectivity and recovery in the processing of complex sulphide ores. It is an inherent part of surface chemical reactions that determine

Characterization and Flotation of Sulfur from …

2013-12-24 · sulfur flotation tests. The tailings from the sulfur flotation were subjected to halcopyrite c flotation to recover copper value. (a) Effect of collector. Sulfur is known for its hydrophobicity in nature. Discrete sulfur particles can be expected to possess excellent flotability with a …

Analysis of the effects of changes in operating conditions ...

2013-8-20 · the overall copper recovery by 6.9% from 86.1% The increase in pregnant leach solution (PLS) flow rate resulted in an increase in the reagent addition required in the circuit, which increased the production cost of copper. The production cost increased by $1156 per ton of copper the wash water ratio was increased from 1.5 to 3.

7 Factors Affecting Froth Flotation Process

2018-12-20 · The flotation agent should maintain a certain mass fraction in the pulp to have a good flotation effect. When the pulp is thicker, the mass fraction of the medicament is correspondingly increased, that is, the required medicament mass …

The effect of mineral grain textures at particle surfaces ...

2019-10-11 · scavenger copper mineral flotation recovery from two industrial copper flotation circuits. For the second circuit the overall rougher flotation kinetic parameters for the copper mineral were also evaluated. The first contribution of this work is the demonstration that a novel textural indicator is

Analysis of the Effects of Grind Size on Production of ...

2015-7-17 · effects of the various sub – processes on flotation. The most direct effect of particle size can be observed in the reduction of the rate of flotation and recovery as the particles decrease in size [10]. International Conference on Chemical Processes and Green Energy Engineering (ICCPGEE''15) July 14-15, 2015 Harare (Zimbabwe) 75

The effect of copper sulphate addition on the recovery of ...

2009-8-27 · The effect of copper sulphate addition on the recovery of chromite generally neutral in charge. As a result of this charged nature, CMC adsorption can induce particle dispersion in addition to having a depressant effect which can influence flotation performance (Shortridge et …

(PDF) Copper Flotation: Effects of Particle Size, Grinding ...

In order to study the influence of particle size on the copper flotation, the initial sample. divided in to five size fractions including -38, +38-63, +63-90, +90-125, and +125 µm. These ...

Effect of Flotation Reagents for Upgrading and Recovery …

Application of flotation for upgrading and recovery of copper (Cu) and molybdenum (Mo) con-tained in flotation tailings from a copper/molybdenum mine was investigated in this study. The sam-ple contained mainly pyrite (FeS2) and quartz (SiO2) as dominant phases with Cu and Mo contents at 0.38% and 0.23% respectively.

Metal Recovery from Sludge through the Combination of ...

2017-1-20 · sulfidation. For metal recovery, the synthetic metal sulfide can be enriched through subsequent flotation process. It is a novel way for the recovery of heavy metal from the sludge. In this study, the effects of liquid/solid ratio, mineralizer concentration, precursor concentration and dosage of sulfur on the sulfidation extent and floatation index

FROTH FLOTATION : RECENT TRENDS Flotation of …

2011-12-1 · History of Sulphide ore flotation dates back to beginning of 20th century. Sulphide ores are major sources of base metals like Copper, Lead, Zinc, Nickel, Cobalt etc. Beneficiation of these base metal sulphide minerals is predominating through froth flotation technique. This technology has acclaimed importance as a versatile process for

Effect of grinding time on flotation recovery of copper ...

Copper smelting slags are hard materials. Therefore,to recover their copper by flotation method, grinding should be carried out to obtain optimal particle size. Copper smelting slags in the Bardeskan district, with work index of 16.24 kwh/st, were grinded for 65 minutes to reach an acceptable degree of freedom for the flotation tests, with particle size of 80%, smaller than 70 μm.

Metal Recovery from Sludge through the Combination of ...

2012-1-1 · So the effects of the zinc concentration from 13.8% to 30% on the sulfidation extent, flotation recovery and enrichment ratio were studied with the liquid/solid ratio of 2:1 at 260 °C for 4 h. Fig.4(a) revealed that the sul¿dation extent of zinc increased from 75.55% to 90.63% as the Zn concentration increased from 13.8% to 30%.

Copper Recovery from Silicate-Containing Low-Grade …

copper ore using flotation followed by atmospheric and high-pressure oxidative leaching. The effects of various flotation parameters, such as flotation time, PAX dosage, slurry pH and air injection rate on beneficiation of copper from the low-grade copper ore were studied. The recovery of copper reached

The effect of a novel depressant on the separation of talc ...

2019-1-21 · flotation, the recovery was calculated based on solid weight distributions between the two products. I n mixed minerals flotation, the flotation recovery was assessed by chemical analysis of the two products. In order to assess the accuracy of flotation tests, …

Combined Effect of Operating Parameters on Separation ...

2018-9-24 · This study aims to investigate the effects of operational variables on concentrate grade, recovery, separation efficiency, and kinetic parameters of the copper flotation process. For this purpose, the effects of the pulp solids content, collector and frother dosage, and preparation and concentrate collection time were studied using a Taguchi experimental design. The results of statistical ...

EFFECT OF PARTICLE SIZE AND LIBERATION ON …

2008-12-9 · mass flow and copper distribution along the flotation bank was calculated [9]. Mass yield in rougher concentrate was 6,9 % regarding to feed of 100 %. Copper recovery of sulphide copper minerals in that concentrate was 89,9 %, while the recovery of nonsulphide copper minerals was not taken into consideration in this paper.

Study of Flotation Parameters for Copper Recovery from ...

2020-4-1 · A detailed study was conducted to evaluate the effect of particle size, pH, flotation time, collector type and addition on efficiency of tennantite flotation. It was shown that maximum copper recovery of 95,3% was obtained at pH 12.3 by lime was suggested to grind up to 65.72% of -0.074 mm to achieve the optimum recovery of copper and high

A Comparative Study of Kinetics of Flotation of a Copper ...

2012-11-30 · copper-zinc ore, and the effect of structure on the flotation efficiency was modeled using the Quantitative Structure-Activity Relationship (QSAR) approach (Natarajan and Nirdosh, 2003). In a similar study on the flotation of a copper-zinc ore using arylhydroxamic acids, Natarajan and Nirdosh