Clay Minerals Flotation
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Decoupling rheology and slime coatings effect on the natural flotability of chalcopyrite in a clay-rich flotation pulp. Minerals Engineering, 56, 136 – 144.CrossRef Google Scholar
Review of the research on the development and utilization of clay …
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).
Reducing the entrainment of clay minerals in flotation …
Clay minerals usually occur at less than 2 μm in the flotation of coal, oil-sands and base metal minerals no matter whether fine grinding is used or not [6].It is expected that clay mineral particles are easily entrained into froth layers and cause high gangue entrainment in froth flotation as a result of the fine size.
The effect of clay minerals on the process of flotation of …
They are widely concerned in the fields of mine wastewater treatment, fine clay mineral flotation, shale oil and gas exploitation, and so forth. In addition, clay minerals are considered as ...
Managing clay minerals in froth flotation—A critical review
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 …
The interaction of clay minerals and saline water in coarse coal flotation
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 slime coatings can occur on …
Lithium extraction from clay-type lithium resource using ferric sulfate
Clay-type lithium resources have been developed as an important natural lithium source secondary to hard rock sources and brine sources. In this study, a green and effective lithium extraction process employing ferric salt solutions to leach lithium-rich clay was proposed. Upon calcination treatment, 73.6% of lithium could be leached over a period of 180 min using …
Efficacy of sustainable polymers to mitigate the negative …
Several physical and chemical methods are employed to mitigate the detrimental effects of clay minerals in flotation and dewatering unit operations (Guo and Xiong, 2017).Dilution is commonly used to mitigate the viscosity effects of clays during flotation (Farrokhpay et al., 2016).A major drawback is that it greatly increases water consumption and pulp volume.
Study of chalcopyrite flotation in the presence of illite using …
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%.
Reducing the entrainment of clay minerals in flotation using …
In this study, Particle Vision Measurement (PVM) and Focused Beam Reflectance Measurement (FBRM) instruments were installed in the flotation cell to measure the enlarged …
A Brief Review of Pulp and Froth Rheology in Mineral Flotation
Clay minerals of different mineral types in the flotation pulp exhibit different rheological behaviours, leading to different effects on the true flotation recovery. Bentonite exhibited a more profound influence than Q38 and Snobrite in the pulp viscosity and flotation recovery when increasing the solid concentration.
Mitigating the negative effects of clay minerals on gold flotation …
A high-clay-content gold ore and a clean gold ore with a low clay content were supplied by a gold flotation plant. The key mineral and elemental compositions of the two ores are listed in Tables 1 and 2, respectively.The analysis by quantitative X-ray Diffraction (XRD) indicates that the major gangue minerals in the high-clay-content ore are kaolinite and quartz …
New insights into the interaction between low-rank coal …
Lignosulfonate is an example of a clay binder, and Liu & Peng, (2015) found that an increase in the lignosulfonate concentration in clay improves the dispersion of clay minerals in coal slurry, improving the coal flotation efficiency; however, in saline water environments, the dispersing effect of lignosulfonate on clay minerals is weakened ...
Evaluation of the effect of the main parameters on …
Clay minerals adversely affect flotation through a combination of one or several mechanisms. The problems caused by clay minerals can be summarized as follows: reducing the recovery by coating on the air bubbles or mineral surface, increasing the consumption of reagents due to large surface areas, mechanical entrainment of ...
Behaviour of swelling clays versus non-swelling clays in …
It was found that swelling clays can adversely affect the flotation performance mainly via adsorbing water which changes the rheology and froth stability, reducing both …
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 useful for any situation in which clays …
The Structure Property of Clay Minerals and Their Effects on …
This paper analyzes the effect of clay mineral structure and physicochemical properties on flotation and the mechanism, and summarizes common treatment methods for …
Effect of clay minerals on pulp rheology and the flotation …
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 ...
Managing clay minerals in froth flotation—A …
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...
(PDF) EFFECT OF CLAY MINERALS ON FROTH STABILITY IN MINERAL FLOTATION
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 contains conflicting evidence, particularly with respect to the effect of clays on froth stability.
Exploring the Behavior of Quartz-Glauconite-Phosphate Flotation …
Flotation, either direct or reverse, is the most common process for upgrading phosphate ores [1,2,3,4,5].Although it is a widely and effectively used to remove silicate and carbonate impurities, the presence of clay represents a significant challenge for phosphate flotation [6,7,8].The presence of clay in the flotation pulp may cause several problems, such as …
Mitigating the negative effects of clay minerals on gold flotation …
The effects of clay minerals on gold flotation were investigated by comparing the flotation behaviour of gold in the high-clay-content ore and the clean ore. Fig. 1 shows the cumulative gold grade as a function of the cumulative gold recovery. A gold recovery of 93% was achieved after 10 min flotation of the clean ore, however, only 60% gold ...
Managing clay minerals in froth flotation—A critical …
clay minerals on flotation, the recent research findings mainly from The University of Queensland group. The first negative effect is the coating of clay minerals on the surface of valuable ...
Effect of Clay Slime on the Froth Stability and Flotation …
As clay minerals tend to be associated with valuable minerals in several ore bodies, exhaustive studies have been performed to determine the effect of clay minerals on flotation performances [13–15]. The unique properties of clay minerals make it difficult to recycle valuable minerals from high clayey ores .
Reducing the entrainment of clay minerals in flotation using …
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 inhibit bubble coalescence [10], [11]. Therefore, saline water may generate more stable froth leading to ...
Effect of clay minerals on froth stability in mineral flotation: a
Clay mineral particles have an anisotropic structure with multiple surface charges. During froth flotation, slime coating caused by clays prevents direct contact between collectors and the ...
Effects of froth properties on dewatering of flotation …
The typical clay minerals include kaolinite, bentonite and illite. Clay minerals would be entrained into froth and enhance froth stability, which is detrimental to the dewatering of flotation products (Wang and Peng, 2014, Farrokhpay et al., 2016, Chen and Peng, 2018, Jeldres et …
The effect of clay minerals on the process of flotation of …
Some strategies to reduce the negative effect of clay minerals on the process of flotation are the use of a variety of reagents such as rheology modifiers and/or the use of …
Understanding different roles of lignosulfonate in dispersing clay
To mitigate the adverse effect of clay minerals on mineral flotation, dispersants have been introduced to modify the colloidal interactions by creating electrostatic and/or steric repulsion. Seaman et al. [6] and Wei et al. [7] demonstrated that lignosulfonate improved copper and gold recovery by dispersing clay minerals in flotation using ...
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 physicochemical …
Effect of clay minerals on pulp rheology and the flotation of …
The mineral processing industry is well aware of the difficulty in treating high clayey ores. Currently, the ways to treat high clayey ores include blending them at a small proportion with normal ores, processing them at low solid concentrations, the use of viscosity modifiers and the removal of clay slimes from the flotation feed (Connelly, 2011, Peng and Zhao, 2011, Quast et …
The interaction of clay minerals with gypsum and its …
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, Jorjani et al., 2011, Wang and Peng, 2014, Wei et al., 2013, Zhang and Peng, 2015).Incremental reagent consumption has also been suggested as a factor affecting flotation …
Mitigating the negative effects of clay minerals on gold flotation …
Liu et al. [9] calculated the entrainment degree in order to find out the causes of the poor flotation of high clay content gold ores, and used lignosulfonate based biopolymer to alleviate the ...
The Life Cycle of Water Used in Flotation: a Review
Liu D, Peng Y (2014) Reducing the entrainment of clay minerals in flotation using tap and saline water. Powder Technol 253:216–222. Google Scholar Liu L, Rao SR, Finch JA (1993) Technical note laboratory study of effect of recycle water on flotation of a Cu/Zn sulphide ore. Miner Eng 6:1183–1190. Google Scholar
Role of Montmorillonite, Kaolinite, or Illite in Pyrite Flotation
In this work, the effects of montmorillonite, kaolinite and illite on pyrite flotation were investigated from the perspective of various structures of clay minerals. Flotation tests suggested that ...
Control of clay minerals effect in flotation. A review
Significant structural differences of clay minerals such as crystallinity, cation exchange capacity, swelling etc. are effective in their behaviour during flotation and these structural differences. …