Clay Flotation Separation

07 November 2024

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Optimizing flotation separation of fluorapatite from Florida …

In the anionic flotation of waste clay, citric acid improves P recovery and grade by ∼ 14 pp and ∼ 2 pp, respectively, unlike sodium silicate which has the opposite effect. • Using citric acid in the anionic flotation of P from waste clay offers a more selective separation …

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07 November 2024

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Removal of fine quartz from coal-series kaolin by flotation

Kaolin, also known as china clay, is a relatively pure clay predominantly consisting of kaolinite (Al 2 O 3 ·2SiO 2 ·2H 2 O) having a SiO 2 /Al 2 O 3 weight ratio of 1.18, ... Selective flotation separation of the pure kaolin from the quartz contaminant was possible using DDA as the collector in acidic media. Starch, an environment-friendly ...

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07 November 2024

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High-gradient magnetic separation of kaolin clay

Kaolin samples from Rio Capim Resources were treated in conventional and superconducting magnetic separators to study the main variables that influence the impurity removal process. Two coating clays and a delaminated clay were tested. The variables studied were retention time (cross-sectional velocity), magnetic-field intensity and matrix type.The feed …

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07 November 2024

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The role of polyvinylpyrrolidone in the selective separation …

High-effective flotation of valuable coal resource from gangue is more challenging due to the increase of ultra-fine minerals in coal slime. Despite the use of novel flotation equipment and process strengthening regulation, the method of flocculation of coal or gangue particles to enhance selective separation draws increasing attention recently.

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07 November 2024

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The Critical Role of Pulp Density on Flotation Separation of …

A nickel-copper sulfide system usually coexists with serpentine in deposits. Low nickel-copper recovery and high content of serpentine in concentration adversely affects subsequent metallurgical processes. In this study, test data showed different rheological results at various densities. When the solid ratio of sulfide to serpentine was 1:1, lower pulp density (20 …

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07 November 2024

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Selective separation of Cs-contaminated clay from soil using

Several physical/chemical methods have already been investigated for their ability to separate Cs-contaminated clay, including magnetic separation and flotation methods. For example, Mallampati et al. (2015) used a nano-Fe/Ca/CaO-based composite to magnetically separate and immobilize Cs-clay from contaminated soil under dry conditions.

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07 November 2024

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US3837488A

3 Claims, No Drawings SEPARATION OF MICA FROM CLAY BY FROTH FLOTATION OF CLAY BACKGROUND OF THE INVENTION High purity kaolin clay is widely used as a coating pigment for paper and paints. Such pigments must be free from undesired impurities, of which mica is an example.

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07 November 2024

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Review of the research on the development and utilization of clay …

Therefore, the research on the separation of clay lithium resource is an important topic in the future. The main minerals in clay-lithium resource include chlorite, kaolinite, diaspora, montmorillonite and illite. Some flotation researches were carried out on it, which could provide useful references for the separation of clay-type lithium ...

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07 November 2024

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Role of crystal structure in flotation separation of diaspore …

The results of artificial mixed minerals showed that not only the mass ratio of Al2O3 to SiO2 (A/S) was remarkably increased but also the effective flotation separation of diaspore and kaolinite ...

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07 November 2024

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Fundamentals and Applications of Green Modifiers for Froth Flotation

After clay flotation, 30 g/ton of guar gum or 100–200 g/ton of CMC was conditioned to depress clays ahead of sylvite flotation with 10–30 g/ton of amine collector. ... Fan MM, Zhao Y, Tao D (2012) Fundamental studies of nanobubble generation and applications in flotation. separation technologies for minerals, coal, and earth resources ...

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07 November 2024

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Comprehensive utilization of foundry dust: Coal powder and clay …

DOI: 10.1016/J.JHAZMAT.2020.124124 Corpus ID: 224811126; Comprehensive utilization of foundry dust: Coal powder and clay minerals separation by ultrasonic-assisted flotation. @article{Gong2020ComprehensiveUO, title={Comprehensive utilization of foundry dust: Coal powder and clay minerals separation by ultrasonic-assisted flotation.}, …

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07 November 2024

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Selective flotation separation of galena from sphalerite via …

The flotation results showed that collector with more nitrogen atoms (DPTZ) offered better selectivity for the flotation separation of galena from a galena/sphalerite mixed mineral system. Separation selectivity, FTIR and XPS studies showed, in the case that collector solution environment pH value < pK a value, N atoms did not participate in ...

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07 November 2024

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Coal and Potash Flotation Enhancement using a …

The adverse effects of clay particles on coal and mineral processing operations such as gravity separation, flotation, filtration and thickening are well known in the mining industry.

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07 November 2024

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Fundamentals and Applications of Green Modifiers for Froth Flotation

After clay flotation, 30 g/ton of guar gum or 100–200 g/ton of CMC was conditioned to depress clays ahead of sylvite flotation with 10–30 g/ton of amine collector. ...

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07 November 2024

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A review of pretreatment of diasporic bauxite ores by flotation separation

Flotation separation (direct or reverse) followed by flocculation as an efficient pretreatment method is the main beneficiation technique for upgrading diaspore. ... 2014) where typically fine particles in diaspore flotation are clay minerals (mostly Kaolinite) (Marino, 2012). It is well documented that slime beneficiation can increase the life ...

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07 November 2024

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Managing clay minerals in froth flotation—A critical review

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 clay minerals. Different types of clay minerals are typically present in ore bodies, and they cause several detrimental effects to flotation that require different treatments.

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07 November 2024

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Effect of Slime Clay Particles on Coal Flotation

Coal preparation or the cleaning of coal involves its selective separation from mineral matter. The latter is composed mainly of clay minerals. Flotation is used to separate fine hydrophobic coal particles from the hydrophilic clay particles. However the separation process can be inefficient if the coal is oxidised, or if the clay is present as composite particles with coal or as slime ...

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07 November 2024

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Comprehensive utilization of foundry dust: Coal powder and clay …

In this study, the XRF, XRD, EPMA, as well as scanning electron microscope (SEM) were used to analyze the particle characteristics of the FD. The ultrasonic-assisted flotation process was proposed to separate the coal powder and clay minerals from the FD samples, and the effect of ultrasonic time on the flotation performance was carried out.

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07 November 2024

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Flotation separation of coal dust from foundry dust …

Fig. 1 illustrates the schematic of the flotation separation for foundry dust enhanced by pre-soaking assisted mechanical stirring. Firstly, the foundry dust was soaked in water for 24 h to reduce the binding forces between clay minerals and coal dust. Subsequently, the soaked foundry dust was pretreated by mechanical stirring in a mixing tank with a diameter …

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07 November 2024

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Aggregating fine hydrophilic materials in froth flotation to …

Among the influencing factors shown in Fig. 1, particle size is the most important [[9], [10], [11]].Froth flotation works best when minerals are in an intermediate particle size range, typically from 20 to 150 μm, but varies with the types of minerals [[10], [11], [12]].When particles are smaller than about 20 μm, value mineral recovery and separation selectivity drop quickly.

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07 November 2024

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Managing clay minerals in froth flotation—A …

It is followed by a critical review of two main negative effects of. clay minerals on flotation, the recent research findings mainly from The University of Queensland group. The first negative ...

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07 November 2024

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Study of a flotation process assisted by cationic …

Impact of process parameters upon the separation performance. In column flotation, the separation of fine particles from soil is significantly affected by the processing variables related to: (1) collector concentration (TTAB/soil ratio), (2) froth residence time (τ), (3) feed suspension concentration (C s), and (4) gas dispersion, such as air ...

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07 November 2024

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Comprehensive utilization of foundry dust: Coal powder and clay …

Request PDF | Comprehensive utilization of foundry dust: Coal powder and clay minerals separation by ultrasonic-assisted flotation | Clay sand casting generates a large amount of foundry dust (FD ...

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07 November 2024

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Comprehensive utilization of foundry dust: Coal powder and clay …

Request PDF | On Sep 30, 2020, Xiaolong Gong and others published Comprehensive utilization of foundry dust: Coal powder and clay minerals separation by ultrasonic-assisted flotation | Find, read ...

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07 November 2024

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Study on the influence of particle size on the flotation separation …

In the two mineral flotation separation tests, reverse flotation had better selectivity for coarse-grained minerals. The maximum separation efficiency of the mixed ore with a particle size of 0.125–0.075 mm was 71.88%, the recovery of kaolinite in the concentrate was 84.97%, and the recovery of quartz amounted to 13.10%.

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07 November 2024

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Chapter 57

A STUDY OF CARRIER FLOTATION OF CLAY Yee-Ho C. Wang and P. Somasundaran Henry Krumb School of Mines Columbia University New York. NY 10027 ... flotation, separation is found to improve with increase in collector concentration and pH, as indicated by the decrease in retention ratio for Ti02 in combined clay product as well as the increase in the ...

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07 November 2024

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Improved flotation separation of fine particles using …

Selective separation of clay and silt particles in Cs +-contaminated soil. To evaluate the efficiency in reducing the Cs + concentration by selective flotation separation, Cs +-sorbed soil was prepared by mixing 20 g of soil with 200 mL of an aqueous Cs + solution (66.5 mg/L) for 7 days at room temperature. The soil was washed three times with ...

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07 November 2024

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Optimizing flotation separation of fluorapatite from Florida …

This study combines flotation experiments and ab initio simulations to improve the anionic flotation of fluorapatite from Florida waste clay (FWC) by investigating the depressing …

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07 November 2024

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The Life Cycle of Water Used in Flotation: a Review

Due to the limitation of freshwater sources and increasingly stringent disposal standards [13, 74, 79], the minerals industry has attempted to increase water use efficiency, reduce freshwater utilization, and minimize water discharge, or seek alternatives to fresh water [57, 59, 78, 84, 101].It is widely accepted that flotation is the most popular mineral processing …

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07 November 2024

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Study of a flotation process assisted by cationic …

Impact of process parameters upon the separation performance. In column flotation, the separation of fine particles from soil is significantly affected by the processing …

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