clay minerals flotation

The effect of clay minerals on the process of flotation

2019-3-15  The presence of clay minerals leads to rheological challenges, which are generally a significant problem in flotation operations (Schubert, 2008; Ndlovu et al., 2011; Farrokhpay, 2012). When mineral pulps display a non-Newtonian behavior, properties like viscosity and yield stress have a significant importance in the hydrodynamics of the pulps, and consequently in all the physical sub-processes that take place within the flotation

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Control of clay minerals effect in flotation. A review

2018-3-29  common method in plants to reduce an unwanted effect of clay minerals prior to flotation is prevention of fine particles entrance into the flotation process and washing of ores. The plants, that do not apply this method, may face serious difficulties, firstly on flotation circuits, and then thickeners and filters. However, the clay fractions may contain large amount of valuable minerals. This method can be applied if the amount of valuable mineral in the discarded size as a slime is atnegligible level. However, in the case of comminution to ultra-fine sizes, a deslime process cannot be considered as a solution because of losses of valuable minerals. Figure 1 shows the effect of quartz particles finer than 10 μm on flotation

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Clay Minerals in Flotation and Comminution

7 - Clay Minerals in Flotation and Comminution Operations By Elizaveta Forbes , Mark Ma , Warren Bruckard Edited by Markus Gräfe , Craig Klauber , Curtin University of

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Managing clay minerals in froth flotation—A critical review

clay minerals on flotation is to mitigate these negative effects. To remove the clay slime coating from valuable mineral surfaces, both physical and chemical pretreatments have

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Reducing the entrainment of clay minerals in flotation ...

2014-2-1  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 . It is expected that clay mineral particles are easily entrained into froth layers and cause high gangue

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Effect of clay minerals on pulp rheology and the

2015-1-1  Clay minerals may affect copper flotation through the modification of pulp rheology. As demonstrated by Bakker et al., 2009 , Shabalala et al., 2011 , Patra et al., 2012 , the increased pulp viscosity interfered with the hydrodynamics within flotation cells and adversely affected mineral flotation.

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Interactions of clay minerals in copper–gold flotation ...

2015-8-10  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 (Lagaly, 2006).

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The behaviour of clay minerals in coal flotation using ...

2021-6-9  This is because saline water promoted the formation of network structures of clay minerals that entered the flotation concentrate and altered the froth property and coarse coal flotation behaviour. The Australian coal industry is treating clayey deposits as a result of the depletion of high quality resources and flotation plays an important role in recovering combustible matter from these low quality

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The effect of clay minerals on the process of flotation

Abstract 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 foundations behind.

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EFFECT OF CLAY MINERALS ON FROTH STABILITY IN

In fact, clay minerals can reduce froth flotation performance by both decreasing and increasing froth stability. When clay minerals are present as individual particles, they adsorb a large amount...

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Clay Minerals in Flotation and Comminution

7 - 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

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The effect of clay minerals on the process of flotation

Abstract 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 foundations behind.

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The behaviour of clay minerals in coal flotation using ...

2021-6-9  This study initially aimed to determine the recovery of clay minerals in fine coal flotation where mechanical entrainment through water films between air bubbles is an important mechanism. This is of particular interest given the colloidal size of clay particles and the inhibition of

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Flotation of alunite and clay minerals SpringerLink

Flotation of alunite and clay minerals Download PDF. Download PDF. Physical and Chemical Bases of Benefication; Published: July 1971; Flotation of alunite and clay minerals. V. S. Uvarov N. E. Vovk ...

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The Depressing Effect of Clay Minerals on the

2016-3-23  ABSTRACTIn this work, the depressing effect of clay minerals on the floatability of chalcopyrite using PAX as collector was assessed through induction time and settling-turbidity measurements. The data obtained using these two techniques were correlated with the results of micro-flotation tests carried out to study the effect of kaolinite and smectite particles on the floatability of ...

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Effect of Clay Slime on the Froth Stability and

2019-6-13  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 .

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Minerals Free Full-Text The Depressing Effect of ...

Copper-molybdenum grades of important mining deposits have progressively decayed, which is associated with high levels of clay minerals which affect froth flotation. The depressing effect of clay minerals on copper sulfides was previously reported but there are no systematic studies on the effect on molybdenite flotation in seawater. The objective of this work was to study the effect of ...

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Surface Properties and Flotation Characteristics of Boron ...

2016-6-11  minerals is the presence of significant amounts of clay type minerals which adversely affect flotation recoveries in the form of slime coatings [4]. While borax has to be concentrated from its saturated brine, for the semisoluble colemanite and ulexite minerals, different recovery strategies need to be employed. Despite

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All You Need to Know About Mineral Processing -

Clay minerals present a widespread problem in the flotation of various metals. Clay content can increase flotation slurry viscosity reducing flotation kinetics, slowing throughput and metal grade and recovery. Additionally, high viscosity and clay slime particles may adsorb onto the minerals' surfaces, reducing the efficiency of flotation reagents.

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Minerals Special Issue : Interactions of Chemical ...

2021-1-25  The flotation data correlated with the induction time measurements that showed that molybdenite became more hydrophilic in the presence of the NS–PAM. The SS–PAM has no effect on the induction times. Further work is ongoing to understand the effect of PAM on molybdenite flotation in the presence of clay minerals and different aqueous media.

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The Depressing Effect of Clay Minerals on the

2016-3-23  ABSTRACTIn this work, the depressing effect of clay minerals on the floatability of chalcopyrite using PAX as collector was assessed through induction time and settling-turbidity measurements. The data obtained using these two techniques were correlated with the results of micro-flotation tests carried out to study the effect of kaolinite and smectite particles on the floatability of ...

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Flotation of alunite and clay minerals SpringerLink

Flotation of alunite and clay minerals Download PDF. Download PDF. Physical and Chemical Bases of Benefication; Published: July 1971; Flotation of alunite and clay minerals. V. S. Uvarov N. E. Vovk ...

More

Effect of Clay Slime on the Froth Stability and

2019-6-13  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 .

More

Reducing the entrainment of clay minerals in flotation ...

Reducing the entrainment of clay minerals in flotation using tap and saline water . By Di Liu and Yongjun Peng. Cite . BibTex; Full citation; Abstract. High gangue entrainment is a major problem in fine particle flotation. In this study, the entrainment of kaolinite Q38 in flotation was examined in tap and saline water.

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Minerals Free Full-Text The Depressing Effect of ...

Copper-molybdenum grades of important mining deposits have progressively decayed, which is associated with high levels of clay minerals which affect froth flotation. The depressing effect of clay minerals on copper sulfides was previously reported but there are no systematic studies on the effect on molybdenite flotation in seawater. The objective of this work was to study the effect of ...

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The Interaction between Cations in Saline Water and ...

2020-9-10  However, different clay minerals have different effects on flotation. Clay minerals affect flotation performance through changing the pulp or froth phase. In the pulp phase, mineral slurries containing fine particles at higher solid concentrations could adversely affect flotation performance when processing high-clay ores [ 1 , 2 ].

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All You Need to Know About Mineral Processing -

Clay minerals present a widespread problem in the flotation of various metals. Clay content can increase flotation slurry viscosity reducing flotation kinetics, slowing throughput and metal grade and recovery. Additionally, high viscosity and clay slime particles may adsorb onto the minerals' surfaces, reducing the efficiency of flotation reagents.

More

Surface Properties and Flotation Characteristics of Boron ...

2016-6-11  minerals is the presence of significant amounts of clay type minerals which adversely affect flotation recoveries in the form of slime coatings [4]. While borax has to be concentrated from its saturated brine, for the semisoluble colemanite and ulexite minerals, different recovery strategies need to be employed. Despite

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Minerals Free Full-Text Interaction Mechanism

Kaolinite is a typical clay mineral, which exists in flotation system as colloidal particles with an average size of about 500 nm, according to Gupta and Miller’s work [].Nanoparticles can worsen objective mineral flotation performance by increasing the slurry viscosity, promoting slime coating and entrainment phenomena [13,14,15,16].Hence, the study on improving flotation

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Minerals Free Full-Text Study on the Dispersion ...

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 chemical dispersants are widely used to separate the nonferrous metal minerals by flotation, they are rarely used for ferrous metal flotation.

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