The detrimental effect of these clay minerals on flotation was attributed to the entrainment of clay particles when kaolinite was added to the ore and to a decrease in true flotation by bentonite. Bentonite formed a sponge-like structure with predominant edge–edge (E–E) interactions which might affect hydrodynamics in the flotation cell and ...
In this study, the effect of different clay minerals on the flotation behavior of LRC was thoroughly examined. To this end, various techniques such as X-ray photoelectron spectroscopy (XPS), XRD, zeta potential analysis, laser particle size analysis, and flotation tests were utilized in experiments. It is noteworthy that the effects of quartz ...
A common method in plants to reduce an unwanted effect of clay minerals prior to flotation is. prevention of fine particles e ntrance into the flotati on process and washing of ores. The plants ...
Clay minerals are a commonly occurring gangue in mineral beneficiation operations and occur in a variety of ore deposits, including porphyry copper ores. ... This study combs and re-classifies the influence factors of seawater on sulfide mineral flotation: The first situation is effect on flotation factor characteristics, including the double ...
The most significant factor increasing pyrite recovery was the amount of clay. 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 processing of high-clay-content ores is becoming a significant challenge for the mining industry owing to the poor flotation …
The adverse effects of clay minerals in flotation have been attributed to slime coating (Edwards et al., 1980;Arnold & Aplan, 1986;Peng & Zhao, 2011), slurry viscosity ...
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 …
Seaman et al. [6] and Wei et al. [7] demonstrated that lignosulfonate improved copper and gold recovery by dispersing clay minerals in flotation using fresh water. Recently, we also found that a small amount of lignosulfonate improved coal flotation in the presence of clay minerals in deionised water [8]. However, the …
The reactivity of clay minerals and variety of these reactions are greater than any other known colloidal material. While it is acknowledged that clay minerals can cause problems in mineral flotation, the literature …
Clay mineral flotation. Lithium extraction. Leaching. 1. Introduction. Lithium is the lightest alkali metal, which shows excellent physical and chemical properties, and is applied in many industries such as battery, medicine, ceramic, glass and lubricant (Karrech et al., 2020; Shan et al., 2020; Song et al., 2014).
The ultrasonic-assisted flotation was proved feasible by experiment research to separate the coal powder and clay minerals from the FD generated by clay sand casting. The FD was mainly composed of the coal powder and clay minerals (bentonite and broken foundry sand) with a particle size of 53 µm～212 µm, wherein the …
Clay minerals are widely present in various ore deposits as gangue minerals. 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 …
As part of an Australian Research Council project with Newmont and Newcrest mining companies studying the influence of clay minerals on rheology, hydrodynamics and flotation response, the cryo-SEM technique has been used to capture and image the clay (low crystallinity kaolinite Q38) aggregate structures in the flotation …
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 …
DOI: 10.1007/s42461-023-00908-w Corpus ID: 266675027; Mechanism of Mechanical Entrainment in Chalcopyrite Flotation: Effects of Clay Minerals @article{Taner2023MechanismOM, title={Mechanism of Mechanical Entrainment in Chalcopyrite Flotation: Effects of Clay Minerals}, author={Hasan Ali Taner and Vildan …
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 …
Six flotation tests were conducted using the copper–gold ore and its mixtures with quartz, clay minerals and gypsum. Fig. 1 shows the mass recovery as a function of water recovery from these tests. As can be seen, flotation of the ore or baseline resulted in a 5% mass recovery and 31% water recovery at the completion of flotation.
The efficiency of copper–gold flotation may be restrained by the changed pulp rheology in the presence of clay minerals. During flotation, pH modifiers (NaOH, …
Meanwhile, the flotation research status of the main mineral of clay lithium ore was also summarized. Furthermore, we discussed the difficulties in the development and utilization of clay-type lithium ore and put forward the subsequent research orientation. ... Subramanian and Nielsen Lammers, 2022; Zhu et al., 2021). Clay mineral surface ...
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 …
The three components in mineral flotation are mineral particles, bubbles, and liquid water. Due to the existence of flotation reagents, the contact behaviors among these three phases can be manipulated, thereby producing metals and many other materials in our modern world. ... Thus far, the interaction between clay minerals and cations and ...
Flotation is widely adopted to separate sulfide minerals from talc (Zhong et al., 2021, Farrokhpay et al., 2018, Witney and Yan, 1997).However, in the flotation beneficiation of sulfide minerals, such as chalcopyrite, talc easily enters into copper concentrate due to its natural floatability, then affecting the copper grade in concentrate.
This PhD thesis investigated the influence of kaolin and bentonite clays in the ore on flotation, filtration and centrifugal concentration. The results showed that the presence of particularly bentonite in the ore had a detrimental effect on flotation and filtration.
Clay minerals are phyllosilicate minerals, with kaolinite and montmorillonite as two typical common gangue minerals, which are the major challenges in the …
Limited studies have been conducted to understand the role of clay minerals in copper flotation. Clay minerals are anisotropic and hydrated phyllosilicates with unit cells comprising a layer of one alumina octahedral sheet and either one (such as kaolinite) or two (such as smectite) silica tetrahedral sheets (Brigatti et al., 2006).
1. Introduction. Clay minerals often associate with valuable minerals in a great range of ore bodies and have a substantial impact on the efficiency of many processes including grinding, pumping and dewatering, etc. when valuable minerals are extracted [1], [2], [3].In mineral flotation, a number of studies have demonstrated that …
Clay Minerals in Flotation and Comminution Operations By Elizaveta Forbes, Mark Ma, Warren Bruckard Edited by Markus Gräfe, Craig Klauber, Curtin …
The previous study suggests that clay minerals may interact with other minerals which release different cations in flotation and therefore influence the rheology of mineral suspensions. From literature, it has been found that clay minerals interact with a number of oxide minerals such as iron oxide, aluminium oxide and titanium oxide …
Highly clayey ores have to be blended with normal ores at a small proportion before flotation [8], [9]. Besides clay minerals, saline water that has been widely used in mineral flotation plants as a result of the scarcity of fresh water may cause the high entrainment of fine gangue minerals in flotation. It is well documented that many salts ...
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