Flotation of an Oxidized Copper Sulfide Ore
Copper ores are known to contain copper iron sulfide, copper sulfide minerals or both. Examples of such minerals include chalcopyrite (CuFeS2), bornite (Cu5FeS4), chalcocite (Cu2S) and covellite ...
Closing the Loop in Ion Flotation: Recovery of Copper
Ion flotation is an efficient separation technique for the recovery of metal ions from dilute aqueous solutions. Provided that both the collected metal and the surfactant are recovered from the phase, it could be considered as an alternative to ion exchange, adsorption or solvent extraction in hydrometallurgy. However, most studies …
A typical flowsheet used in the flotation process of porphyry copper …
Three factors were measured in the flotation process of copper ore: the copper grade in a concentrate (β), the copper grade in tailings (ϑ), and the recovery of copper in a concentrate (ε).
Interaction effects of flotation reagents for SAG mill reject of copper …
Trans. Nonferrous Met. Soc. China 31(2021) 792âˆ'806 Interaction effects of flotation reagents for SAG mill reject of copper sulphide ore using response surface methodology Ali AHMADI, Mojtaba REZAEI, Seyed Mohammad SADEGHIEH Department of Mining Engineering, Isfahan University of Technology, Isfahan 84156-83111, Iran …
A Review of the Flotation of Copper Minerals
The recovery of these copper minerals by flotation or hydrometallurgy from ores, typically containing 0.5%TCu (open pit mines) and 1-2%TCu (underground mines) is of great commercial importance....
Design, Modeling, Optimization and Control of Flotation …
In this study, two new variants of the recurrent neural network (RNN) method were used to predict the copper ore flotation indices, i.e., grade and recovery within different …
Estimated Water Requirements for the Conventional …
Copper sulfide ores must be concentrated before they can be economically transported to a smelter. Froth flotation is part of a copper beneficiation process in which finely ground …
The Effect of Oxidation on the Flotation Behaviour of …
In this paper, the flotation behaviour of nickel-copper ores processed in the Sudbury area is discusse~ with emphasis on the effect of oxidation on individual minerals, pnmarily pyrrhOlite. In general, moderate oxidation of a freshly ground ore promotes the flotability of all principal sulphides in the ore leading to a bulk flotation concentrate.
Estimated Water Requirements for the Conventional …
Figure 1 is a generalized diagram of a conventional copper flotation plant from the point where ore first enters the circuit to the production of concentrate and tailings. To prepare ore for the flotation process, run-of-mine ore, which may contain from about 2 to 5 percent water, by weight, when mined, is
The Importance of pH in Flotation
Sulphuric acid is employed occasionally as a modifying reagent, but its use is steadily decreasing, being confined chiefly to the treatment of lead and zinc ores. There are, however, one or two ores containing sulphide copper minerals which need an acid circuit for successful flotation.
A New Collector for Effectively Increasing Recovery in Copper Oxide Ore
A new method, staged flotation for effectively increasing the recovery of ultra-fine copper oxide ore with a new type of collector (ZH-1, C3-5 carbon chain xanthate) is proposed for the first time. The flotation process and mechanism were examined by flotation tests, entrainment rate analysis, laser particle size experiments and …
Copper Sulfide Flotation
Copper Sulfide Flotation Circuit Beneficiation of Copper Sulfide by Flotation Copper, due to the present world demand and price, is of foremost interest to the mining industry. Many new properties are either in the process of being brought into production or are being given consideration. Copper minerals usually occur in low grade …
The effect of grinding conditions on the flotation of a sulphide copper ore
The challenge of process development for the beneficiation of Salobo's copper ore started in 1978 and the studies still go on. Copper is predominantly present as secondary minerals, such as ...
Flotation Guidebook
This table lists the Orica Mining Chemicals specialty flotation collectors that are most suitable as 1 for 1 replacements for xanthate, depending on the ore type and the most predominant minerals present. The reagents detailed below offer similar performance at …
The effect of clay minerals on the process of flotation of copper ores
DOI: 10.1016/J.CLAY.2019.01.013 Corpus ID: 104460720; The effect of clay minerals on the process of flotation of copper ores - A critical review @article{Jeldres2019TheEO, title={The effect of clay minerals on the process of flotation of copper ores - A critical review}, author={Ricardo I. Jeldres and Lina Uribe and Lu{'i}s A. …
The effect of clay minerals on the process of flotation of copper ores
Processing of high clay ores is usually related to negative effects in particular in the flotation stages. A good description was made recently in the work by Chen and Peng (2018), who developed a general review about the mechanisms and behaviour of clays in mineral flotation.The background they presented is general and …
(PDF) Flotation of nickel-copper sulphide ore
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 and Methods 2. 1. Materials The nickel-copper sulphide ore used in this study was supplied by Trojan Nickel Mine located in Bindura, Zimbabwe.
Flotation of an Oxidized Copper Sulfide Ore
The activation effects of single activator and some combined activators on Yunnan copper oxide ore were studied with Drawing a conclusion that the best activation - xanthate flotation result could ...
FLOT-ART: An integrated plant optimization tool for the …
This paper discusses an integrated plant optimization tool for the flotation of complex copper and copper–gold ores in addressing the present challenges, branded as …
60 Centuries of Copper: The Flotation Process
Today such ores (which would be regarded as relatively rich in copper) are scarce; the great majority of mines contain the metal in finely disseminated particles which aggregate anything from 2 percent down to 1 percent or even 0.8 percent of copper. Thus to obtain metallic copper, up to 99 percent of the material mined must be removed as waste.
Design, Modeling, Optimization and Control of Flotation …
In this study, two new variants of the recurrent neural network (RNN) method were used to predict the copper ore flotation indices, i.e., grade and recovery within different operating conditions. ... Despite the same effect from pulp pH, reverse effects from other variables were observed for copper recovery. Process optimization revealed that ...
Parametric Optimization in Rougher Flotation …
The dominant challenge of current copper beneficiation plants is the low recoverability of oxide copper-bearing minerals associated with sulfide type ones. Furthermore, applying commonly used conventional methodologies does not allow the interactional effects of critical parameters in the flotation processes to be investigated, …
FLOT-ART: An integrated plant optimization tool for the flotation …
Pyrite depression in the flotation of copper ores is difficult due to the activation of Cu2+ ions on pyrite surface. In this study, the radical chain reaction involving the redox cycling ... A review of the effects of the grinding environment on the flotation of copper sulphides. W. Bruckard G. Sparrow J. T. Woodcock. Materials Science ...
The different effects of bentonite and kaolin on copper flotation
The copper–gold ore from Newcrest Telfer mine with 0.43 wt.% Cu, Telfer clean ore, was used as a reference system.The mineral composition of this ore was analysed by quantitative X-ray Diffraction (XRD) using Bruker D4 Endeavor diffractometer with Co Kα radiation (1.7903 Å) generated using 35 kV and 40 mA.The scan rate and …
Assessment of water quality effects on flotation of copper–cobalt oxide ore
Ammonium sulfate [(NH 4) 2 SO 4] is an effective activator of malachite sulfidization flotation.In this work, we explored the effects of ammonium ion (NH 4 +) and copper ion (Cu 2+) on malachite sulfidization flotation and investigated the underlying mechanism.Flotation experiments demonstrated that NH 4 + can not only eliminate the …
The Challenges and Prospects of Recovering Fine Copper …
Flotation is a common mineral processing method used to upgrade copper sulfide ores; in this method, copper sulfide mineral particles are concentrated in froth, and associated gangue minerals are ...
Model Discrimination in the Flotation of a Porphyry Copper Ore
Numerous flotation models have been proposed in the literature. Thirteen of these have been applied to batch flotation data and evaluated with respect to one another using statistical techniques.Flotation tests were carried out on samples of a US porphyry copper ore (Pinto Valley, AZ). The ore was tested using various collector and frother systems to …
Selective Flotation
Who would think that Selective Flotation of copper, gold, zinc or any metal would required that one must be able to feel pain and recognized and/or admit when it hurts. Flotation mass-pull is a process …
Water considerations for copper mining in the Americas
Most global primary copper production depends on a water-intensive process involving the flotation of ores, where mine tailings become a constant sink for water. This increases …
Improving the performance of a low-grade porphyry copper …
A large porphyry copper flotation plant has been simulated using a flotation model developed from first principles using the hydrophobic force as a kinetic parameter …
60 Centuries of Copper: The Flotation Process
Today such ores (which would be regarded as relatively rich in copper) are scarce; the great majority of mines contain the metal in finely disseminated particles which aggregate anything from 2 percent down to 1 percent or even 0.8 percent of copper. Thus to obtain metallic copper, up to 99 percent of the material mined must be removed as …
Copper Recovery from Yulong Complex Copper Oxide Ore by Flotation …
A combined process of flotation and high-gradient magnetic separation was proposed to utilize Yulong complex copper oxide ore. The effects of particle size, activators, Na2S dosage, LA (a mixture of ammonium sulfate and ethylenediamine) dosage, activating time, collectors, COC (a combination collector of modified hydroxyl oxime acid …
Flotation | Mineral Processing, Separation & Beneficiation
Flotation is widely used to concentrate copper, lead, and zinc minerals, which commonly accompany one another in their ores. Many complex ore mixtures formerly of little value have become major sources of certain metals by means of the flotation process. This article was most recently revised and updated by
business plan of beneficiation of nickel ore
nickel ore gravity beneficiation process - christoartfair.nl. Nickel ore gravity beneficiation process YouTube Feb 16, 2016183; (with pictures), wiseGEEK . 9 Aug 2014 Iron ore beneficiation is a multi, stage process that raw iron ore undergoes to purify it business plan beneficiation of nickel ore business plan for ore processing plant.
The Life Cycle of Water Used in Flotation: a Review
The results showed that kaolinite played a negative role in both copper and gold flotation in fresh water because of kaolinite particle aggregation, resulting in a lower …