A similar trend has been reported recently for the effect of clay minerals on the copper flotation using chalcopyrite (Farrokhpay and Ndlovu, 2013). The reduction in the copper recovery due to the presence of montmorillonite content in flotation can be due to the reduced bubble-particle collisions and/or the mobility of bubble-particle aggregates.
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In this study, the effect of adding a guar gum and potassium amyl xanthate sequence to the flotation separation of pyrite and talc was investigated by micro …
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Clay Minerals in Flotation and Comminution Operations By Elizaveta Forbes, Mark Ma, Warren Bruckard Edited by Markus Gräfe, Craig Klauber, Curtin University of Technology, Perth, Angus J. McFarlane, Commonwealth Scientific and Industrial Research Organisation, Canberra, David J. Robinson, Commonwealth …
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The effect of clay minerals in flotation and treatment methods are summarized, which is helpful to provide technical reference for the research of flotation technology with high clay content, and to put forward the future research content and direction in this field. ... Peng Y, Farrokhpay S, et al. Interactions of clay minerals in …
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DOI: 10.1016/J.MINENG.2015.03.010 Corpus ID: 93657867; The interaction of clay minerals with gypsum and its effects on copper–gold flotation @article{Cruz2015TheIO, title={The interaction of clay minerals with gypsum and its effects on copper–gold flotation}, author={Nestor Cruz and Yongjun Peng and Elaine M. Wightman and Ning …
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Zhang and Peng [21] studied the influence of clay minerals on the rheology and flotation of copper and gold mineral slurry. It was found that the interaction of clay mineral particles was the main ...
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Based on the experimental results, flotation processes carried out on raw feed allowed the recovery of the majority of REE minerals (>50%), but the process was unselective, where clay and silicate ...
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In the present review, we analyse the principal researches developed to date, which deals with the impact of clay minerals on the flotation of copper ores. …
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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 …
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DOI: 10.1016/J.POWTEC.2015.08.042 Corpus ID: 93384339; The entrainment of kaolinite particles in copper and gold flotation using fresh water and sea water @article{Zhang2015TheEO, title={The entrainment of kaolinite particles in copper and gold flotation using fresh water and sea water}, author={Ming Zhang and Ning Xu and …
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The processing of high-clay-content ores is becoming a significant challenge for the mining industry owing to the poor flotation performance caused by the presence of clay minerals. Different types of clay minerals are typically present in ore bodies, and they cause several detrimental effects to flotation that require different treatments.
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Talc and mica are major gangue minerals in many base metal ores including sulfide ores. Talc is a naturally hydrophobic mineral, and therefore it is easily floatable. …
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Copper is recovered from these minerals mainly through flotation, followed by pyrometallurgical processing, representing 80–85% of world's copper production [8,9]. However, pyrometallurgical treatment is difficult and expensive for low-grade copper ores producing high emissions of sulfur dioxide (SO 2 ), NOx, and CO 2, which cause …
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1 Clays and the Minerals Processing Value Chain (MPVC) 2 Fundamentals of Clays Surface and Colloid Science, and Rheology; 3 Leaching and Solution Chemistry; 4 Identification and Quantification of Clays; 5 Clays by Deposit Type; 6 Exploration and Discovery; 7 Clay Minerals in Flotation and Comminution Operations; 8 Solid–Liquid …
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Talc and mica are major gangue minerals in many base metal ores including sulfide ores. Talc is a naturally hydrophobic mineral, and therefore it is easily floatable. There have been many studies to overcome this problem, and depress talc with various reagents. In this study the flotation of a copper ore in the presence of talc and muscovite was studied.
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Methodology for Copper Flotation Optimization in Saline Systems. Minerals 2022, 12, 1131.https:// ... 3 Escuela de Ingenier ía Qu mica, Pontificia Universidad ólica de Valpara so, Avenida Brasil 2162, Valparaíso 2362854, Chile ... clay, and dilution media. In addition, this
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DOI: 10.1016/J.MINENG.2018.06.021 Corpus ID: 103072302; Mitigating the negative effects of clay minerals on gold flotation by a lignosulfonate-based biopolymer @article{Liu2018MitigatingTN, title={Mitigating the negative effects of clay minerals on gold flotation by a lignosulfonate-based biopolymer}, author={Shiqi Liu and Xumeng Chen …
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The fresh copper oxide mineral surfaces exposed during crushing and grinding have a significant effect on subsequent flotation [23], [24], [25], [26].Many dangling bonds exist on fresh mineral surfaces because of destruction of the original lattice bonds, and the copper oxide mineral surface often shows strong polarity because of the …
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It has been shown that the performance of frothers is extremely depending on their chemical structure, and different chemical structures may give different flotation recovery for mineral particles [24].A review of the effect of frother in plant practice is available [25].The effect of frother structure on the selectivity and recovery of various …
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The presence of clay leads to low recoveries in the process of flotation of copper ores which is also reflected in a decrease of the concentrates grades. Due to this, the scientific interest in studying the effect and mechanisms of action of clay minerals in the flotation process has increased, which has resulted in a better understanding of ...
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Although illite is considered to be the least problematic clay mineral for flotation, as reported in the literature, an illite content of as low as 5% in the ore decreased chalcopyrite grade by 3.83%.
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Montmorillonite, kaolinite, smectite, and mordenite are the clay minerals that generate the highest acid consumption and decrease copper recoveries. In addition, due to its low granulometry …
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The presence of clay leads to low recoveries in the process of flotation of copper ores which is also reflected in a decrease of the concentrates grades.
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Based on the experimental results, flotation processes carried out on raw feed allowed the recovery of the majority of REE minerals (>50%), but the process was unselective, where clay and silicate gangue minerals reported into the flotation concentrate along with the REE minerals. However, desliming before flotation in the …
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The depressing effect of clay minerals on the flotation of chalcopyrite and molybdenite becomes stronger in the presence of most of the cations in seawater [7,8,9]. ... Recoveries and concentrate grades of copper and molybdenum as a function of mica content at pH 9 and 11 in seawater (a,b), and in a 0.01M NaCl solution (c,d). MA and BA …
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This paper analyzes the effect of clay mineral structure and physicochemical properties on flotation and the mechanism, and summarizes common …
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Farrokhpay et al. (2018) [17] studied the behavior of talc and mica in copper ore flotation and reported that the viscosities of the ore slurry in the presence of 7.5 wt.% talc and 30 wt ...
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Clay minerals are a group of minerals that are typically found in soils, sediments, and rocks.They are characterized by their small particle size, which is typically less than 2 micrometers, and their high surface area. Some of the most common clay minerals include kaolinite, smectite, illite, and chlorite.. One of the unique properties of …
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The presence of clay leads to low recoveries in the process of flotation of copper ores which is also reflected in a decrease of the concentrates grades. Due to this, the scientific interest in studying the effect and mechanisms of action of clay minerals in the flotation process has increased, which has resulted in a better understanding of the …
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Semantic Scholar extracted view of "Behavior of talc and mica in copper ore flotation" by S. Farrokhpay et al. ... Search 220,354,210 papers from all fields of science. Search. Sign In Create Free Account. DOI: 10.1016/J.CLAY.2018.02.011; ... In mineral flotation, rheological problems have limited the efficient upgrading of low-grade …
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The general circuit for commercial separation of feldspar consists of three sequential stages of flotation, all of which are carried out in an acid medium. Usually, before flotation, the feed is deslimed, removing any fine clay minerals present. In the first flotation stage, mica is removed with an amine collector.
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Entrainment is a process by which fine and ultrafine particles are transferred to the flotation froth from the top of the flotation pulp, and eventually discharge to the concentrate product, even when they are not attached to gas bubbles. Therefore, entrainment can be considered as a two-step process, one at the upper layer of the pulp …
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Talc and mica are major gangue minerals in many base metal ores including sulfide ores. Talc is a naturally hydrophobic mineral, and therefore it is easily floatable. …
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Each zone contains characteristic copper minerals, e.g., chalcopyrite (CuFeS 2) and bornite (Cu 5 FeS 4) in the primary sulfide ore zone, chalcocite (Cu 2 S) and covellite (CuS) in the secondary sulfide …
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The aim of this study is to understand the effects of talc and muscovite (as representative of Mg and Al containing clays, respectively) on the flotation of a copper ore through examination of the grade and recovery behaviour, pulp rheology, and froth …
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Froth flotation is a physicochemical process that is used to separate fine mineral particles from aqueous suspensions by selective attachment of some types of minerals to air bubbles. Froth flotation is the most important mineral processing technology for the production of valuable mineral concentrates from which metals and minerals are …
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Behavior of talc and mica in copper ore flotation. Appl. Clay Sci. (2018) ... in a mineral flotation froth plays a critical role. While they reduce the grade of the concentrate, they are also an important influence on the dynamical structure of the froth and its ability to transport value particles into the launder for ultimate recovery ...
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These findings shed light on the root cause of the adverse effect of clay minerals on pyrite flotation, and are expected to provide theoretical guidance for …
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