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mica and clay minerals in copper flotation
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Minerals | Free Full-Text | Recovery of Rare Earth Elements Minerals …
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 significance of froth stability in mineral flotation — A …
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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Interactions of clay minerals in copper–gold flotation: Part …
Clay minerals such as kaolinite, bentonite and smectite, which are often associated with copper, gold and other valuable minerals, place a widespread problem in mineral flotation. There have been numerous observations of these clay minerals having a deleterious effect on mineral flotation grade and recovery, with simultaneous …
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Effect of clay crystal structure on froth rheology in flotation
The nature of a clay mineral in aqueous solution is related to its crystal structure. Most clay minerals are phyllosilicates which are made up of silicon‑oxygen tetrahedrons (T) and aluminum‑oxygen octahedrons (O) in certain proportions [9].Montmorillonite (T-O-T), kaolinite (T-O) and talc (T-O-T) are common clay minerals …
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Mechanism for the recovery of silicate gangue minerals in the flotation
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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Control of clay minerals effect in flotation. A …
Control of clay minerals effect in flotation. A review. Hasan Ali Taner1,a, and Vildan Onen1. 1Selcuk University, Department of Mining Engineering, 42075 Konya, Turkey. …
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Effect of clay minerals on pulp rheology and the flotation of copper …
Zhang et al. [36] have found that clay mineral particle interactions in the flotation system dominate the pulp rheology and pulp viscosity slightly increased by clay minerals could enhance the ...
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Behavior of talc and mica in copper ore flotation
Semantic Scholar extracted view of "Behavior of talc and mica in copper ore flotation" by S. Farrokhpay et al. Skip to search form Skip to main content Skip to account menu. …
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Applied Clay Science
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 …
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mica and clay minerals in copper flotation
Flotation is the most effective method for separating fine coal from gangue particles Ni et al. 2018a, b; Yoon 2022 . There are many ultrafine gangue minerals in the flotation pulp, which are produced by grinding or mudding of the clay minerals. These minerals include kaolinite, illite and montmorillonite.
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Copper Flotation
A Copper Flotation Flowsheet. Because the copper in this type of ore usually assays only plus or minus 1% copper, the porphyry copper operations must be relatively large in order to be commercial. The flowsheet in this study illustrates a typical 3,000 ton per day operation. In general most operations of this type have two or more …
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Behaviour of swelling clays versus non-swelling clays in flotation
However, with the addition of the maximum tested amount of illite and kaolinite (i.e. 30%), the final copper recovery only slightly changed to 88%. 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 ...
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The effect of phyllosilicate minerals on mineral processing …
EFFECTS OF CLAY MINERALS ON VISCOSITY AND COPPER ENTRAINMENT LOSSES IN SMELTING SLAGS. Materials Science, Engineering. 2017. Hydrous aluminium phyllosilicate group minerals, often broadly classified as 'clays', exist as common gangue components in most copper porphyritic ore deposits. In the case of …
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Mechanism of Mechanical Entrainment in Chalcopyrite Flotation…
Gangue recovery in copper-lead flotation increased from about 5% to 20–30% for 40 μm and 10 μm particles, ... In understanding the effects of clay minerals on flotation, it is important to fully identify the mechanical entrainment mechanism. ... Illite is a clay mineral, and a member of the true mica group, which forms platy, fibrous, or ...
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The effect of clay minerals on the process of flotation of copper ores
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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Effect of clay crystal structure on froth rheology in flotation
Abstract. It has been well acknowledged that clay minerals could impose deleterious effects on flotation performance by affecting pulp rheology. To date, it is still not clear regarding the role of clay minerals in influencing froth rheology which has been increasingly recognized as an important froth property in determining flotation …
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Decoupling rehology and slime coatings effect on the …
The possible reasons for such decreases in flotation rate constant were reported as the occurrence of slime coating or physical adsorption of clay mineral particles onto the copper-containing ...
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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 Scientific and Industrial …
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The interaction of clay minerals with gypsum and its effects on copper
Clay minerals are often associated with copper, gold and other valuable minerals and place a widespread problem in mineral flotation. This paper is one of a series addressing the problem caused by ...
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The different effects of bentonite and kaolin on copper flotation
Effect of clay minerals on copper flotation. The effects of various amounts of bentonite and kaolin on copper flotation are shown in Fig. 2(a) and (b), respectively. Flotation tests were performed with Telfer clean ore as a laboratory baseline in the absence of clay samples. The presence of either bentonite or kaolin affected copper …
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Mitigating the deleterious effect of clay minerals on copper flotation
Clay minerals have a deleterious effect on the mineral flotation process. Generally, two major phenomena are observed in industry when processing high clay ores: no froth formed on the top of the pulp phase and few valuable minerals loaded on the top of froth. This is an ARC Linkage project with support from Pionera, a reagent company manufacturing …
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The interaction of clay minerals and saline water in coarse coal flotation
Clay minerals can be detrimental to mineral flotation and high viscosity and high particle entrainment promoted by clay minerals are among the main contributing factors (Forbes et al., 2014 ...
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Mitigating the negative effects of clay minerals on gold flotation …
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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Behavior of talc and mica in copper ore flotation
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 …
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A Review of the Flotation of Copper Minerals
economic to acid heap leach the stockpile. 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. This paper reviews the literature on the recovery of the above mentioned minerals by flotation.
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The effect of clay minerals on the process of flotation of …
The main studies reported to date are systematised and classified in five topics in this paper: i) rheology of clayey pulps; ii) specific reagents for dispersing clays; iii) …
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Gangues and Clays Minerals as Rate-Limiting Factors in Copper …
According to Toro et al. [], copper mining is an industry that is in constant growth, and approximately 25 million tons are produced annually worldwide [].Among the copper minerals on the planet, the vast majority correspond to sulfide ores [].Within these copper minerals, chalcopyrite stands out as the most abundant, representing 70% of all …
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Effects of aluminosilicate minerals on copper–molybdenum flotation …
The clay minerals that resulted from alteration, along with copper sulfide minerals, are the major mineral phases that are fed to the copper concentrator plant (Shahabpoor, 1982). In the concentrator plant, after three stages of crushing, the ore is fed to ball mills in closed circuit with cyclones to produce 70% of the product finer than 75 μm.
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Review of flotation of feldspar: Mineral Processing and …
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. In the second stage, titanium and iron oxide minerals, such as ilmenite and magnetite, are removed using an anionic collector.
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The effect of clay minerals on the process of flotation of copper …
[76][77][78] According to the characteristics of layer type, the clay minerals can be divided into two groups: 1:1-type clay mineral (like kaolin) and 2:1-type clay mineral (like montmorillonite). ...
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Clay and pyrite in copper concentrate VS frother
Perhaps the most detrimental clay minerals in an ore are montomorillonite and chamosite. Experimental work conducted with different frothers on ores containing montomorillonite and illite clay showed that the frother type had a significant effect on the rate of copper flotation and recovery. This effect is illustrated in Figure 12.9.
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Behavior of talc and mica in copper ore flotation
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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The effect of clay minerals on the process of flotation of copper ores
Unfortunately no studies were found to evaluate copper minerals; however, it is worth mentioning the work of Liu and Peng (2015), who assessed the flotation of coal minerals with high clay content, both in freshwater and in saline water (processed water). The dispersing agent (lignosulfonate) showed results that much depending on its dosage …
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The Structure Property of Clay Minerals and Their Effects on Flotation
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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Fundamentals and Applications of Green Modifiers for Froth Flotation …
Two important factors for potash flotation are (a) the presence of clay in the ore and (b) the presence of carnallite in the ore, because Mg 2+ ions associated with carnallite generally depress KCl flotation. Clay minerals may compete with sylvite in adsorption of amine collector, reducing floated concentrate yield and grade, causing …
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The effect of biopolymer dispersants on copper flotation in …
Biopolymers, sodium hexametaphosphate and lignosulfonate have been used for the flotation of copper ores associated with kaolinite, bauxite and clay minerals, respectively [3] [4][5][6]. Although ...
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The entrainment of kaolinite particles in copper and gold flotation …
Semantic Scholar extracted view of "The entrainment of kaolinite particles in copper and gold flotation using fresh water and sea water" by Ming Zhang et al. ... Mitigating the negative effects of clay minerals on gold flotation by a lignosulfonate-based biopolymer. ... a mixed-layer mineral (mica and montmorillonite) " illite", ...