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 …
Clay minerals impose deleterious impacts on mineral processing.In this study, bentonite consisting primarily of montmorillonite and kaolin consisting primarily of kaolinite, were used to characterise the effect of clay minerals on copper flotation.It was found that bentonite and kaolin caused different issues in the process of flotation. …
A copper–gold ore with low clay content was crushed to a size of −2.36 mm before grinding and flotation.The mineral compositions of this ore analysed by quantitative X-ray Diffraction (XRD) are shown in Table 1.The major gangue minerals are quartz, albite, muscovite and clinochlore with minor kaolinite.
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 ...
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. …
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 …
This paper analyzes the effect of clay mineral structure and physicochemical properties on flotation and the mechanism, and summarizes common …
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 …
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 ...
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 …
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 …
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 present in froth flotation, as shown in Fig. 1. Montmorillonite is a typical 2:1 clay mineral (see …
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 …
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.
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 …
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
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 …
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 …
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 …
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.
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 …
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%.
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.
The recovery of these copper minerals by flotation or hydrometallurgy from ores, typically containing 0.5%TCu (open pit …
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 …
Porphyry copper–gold ores contain carbonates and clay minerals (Agorhom et al., 2012b, Allan and Woodcock, 2001, Bulatovic, 1997), which are detrimental to both gold and copper sulphide flotation. Gangue minerals in copper–gold ores have two negative effects on the flotation recovery process; (i)
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 …
Behavior of talc and mica in copper ore flotation ... Keywords: Flotation Talc Muscovite Phyllosilicate Clay Rheology Froth stability ABSTRACT Talc and mica are major gangue minerals in many base metal ores including sulfide ores. Talc is a naturally ... presence of these clay gangue minerals. The critical concentration at
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 ...
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 ...