Flotation separation depressants for scheelite and calcium …

Owing to the depletion of wolframite, the focus of tungsten extraction has gradually shifted to scheelite. However, separating the associated minerals (e.g., apatite, fluorite, and calcite) and scheelite is challenging because their surface physicochemical properties are similar to those of scheelite. Fortunately, researchers have made …

Minerals | Free Full-Text | Investigation of the Flotation Separation

The recovery of scheelite from calcium-bearing carbonate ores by flotation is challenging due to its low separation efficiency. This study investigated the effect of pentasodium diethylenetriaminepentaacetate (PD) on the surface properties of scheelite and fluorite. For this purpose, we performed micro-flotation tests and carried …

Improved flotation separation of sulfide minerals by …

The separation performance of flotation reagents is closely related to their effect on the hydrophobicity of different mineral surfaces. The contact angles of the galena and pyrite surfaces after treatment with DI water, SPTS solution and SBS solution (5 × 10 −4 mol/L, pH = 7) are shown in Fig. 9 .

Intensification of the flotation separation of potash ore …

Intensification of the flotation separation of potash ore using ultrasound treatment @article{Filippov2021IntensificationOT, title={Intensification of the flotation separation of potash ore using ultrasound treatment}, author={Lev O. Filippov and Inna V. Filippova and Odile Barr{`e}s and Tatyana P. Lyubimova and Oskar O. Fattalov}, journal ...

Development of magnetic flotation hybrid separation …

The magnetic flotation hybrid separation process, which combines column flotation and magnetic separation, was anticipated to beneficiate a representative coal sample acquired from the El-Maghara coal mine with a relatively high ash percentage of 27.21%. The system was designed to introduce a high gradient magnetic field to a …

Flotation separation of feldspar from quartz using sodium …

The physical and chemical properties of feldspar and quartz are highly similar, thus they cannot be easily separated effectively. In this work, the flotation separation of feldspar from quartz using sodium fluosilicate (Na2SiF6; SF) as a selective depressant was investigated. Moreover, the influence mechanism of SF on the selective flotation …

FLOTATION

Flotation is a process in Liquid-Solid Separation technology whereby solids in suspension are recovered by their attachment to gas (usually air) bubbles, …

Application of ultrasonic pre-treatment for flotation separation

The optimum flotation pH for pyrrhotite separation from chlorite was 9.21, meanwhile, it can be seen from the green dotted line(pH= 9.21) in the Fig. 7: the positive charge on chlorite + FSP surface was + 12.36 mV, while the negative charge on pyrrhotite + FSC surface was − 30.77 mV un-ultrasonic pre-treatment; the negative charge on …

Flotation as a separation technology for recovering pulp …

Refined samples were subjected to flotation separation, and separation efficiency was quantified by fines recovery and fines enrichment ratio. At high pH (11.9), with a surfactant concentration of 0.15 mM, the surface tension of the air–water interface was 44 mN/m and the Sauter mean diameter of the bubbles in the froth was 0.948 mm. These ...

Advanced Techniques on Fine and Coarse Particle Flotation

Flotation is a method that enables the separation of hydrophobic particles with the help of air bubbles (Fig. 3 a). In flotation, the particles adhere to air bubbles depending on solid, liquid, and gas contact phases. The interaction of particles and bubbles includes collision, adhesion, and stability [ 3, 4, 5 ].

Flotation separation of quartz from gypsum using benzyl …

The cationic surfactant TDBAC collector was first used in the flotation separation of quartz from gypsum, which exhibits superior collecting ability and selectivity for quartz under wide pH range of 2.5–9.5. When the TDBAC concentration reaches 10 −4 mol/L, the flotation recovery difference between quartz and gypsum exceeds 80% in the ...

Flotation technique: Its mechanisms and design parameters

Flotation is a widely used, cost-effective separation technique for wastewater treatment [ 1 ], mineral beneficiation [ 2 ], micro-oxygenation of wine [ 3 …

Biodegradable ether amines for reverse cationic flotation separation …

Flotation separation (direct or reverse) is the most common method for processing iron oxides in a typical size range of − 150 + 40 µm. However, the flotation of ultrafine particles (− ...

Flotation separation of hazardous polyvinyl chloride from waste

The flotation percentage of PVC and PET, under optimal conditions of positive discharge, power 600 W and exposure time 5000 ms (denoted as OC2), is observed to be 5.09% and 88.31%. The flotation separation of PVC-contained binary mixtures may be accomplished under the corresponding OC1 and OC2.

Effect of different particle size fractions on flotation separation …

The flotation separation of fine minerals, including rutile, has long been a challenging research focus. This study selected rutile and garnet samples with size fractions of −15, −38, and −74 μm to investigate the impact of particle size on flotation separation. Infrared spectroscopy, Zeta potential analysis, adsorption capacity ...

Flotation Separation of Galena from Pyrite in a Low …

DOI: 10.1080/08827508.2023.2243010 Corpus ID: 260598421; Flotation Separation of Galena from Pyrite in a Low-Alkalinity Media Using Welan Gum as a New Depressant @article{Ning2023FlotationSO, title={Flotation Separation of Galena from Pyrite in a Low-Alkalinity Media Using Welan Gum as a New Depressant}, author={Shuai Ning and Bin …

Flotation separation mechanism of malachite from calcite …

As shown in Fig. 2 a, the flotation recovery of malachite was first increased and then decreased with the improvement of slurry pH value. When the slurry pH was ∼ 9.3, the flotation recovery of malachite reached the maximum value of 31.25 %. The flotation recovery of calcite had little relationship with the change in pH value, which …

A fundamental study of flotation separation of mineral …

DOI: 10.1016/j.mineng.2024.108573 Corpus ID: 267023276; A fundamental study of flotation separation of mineral particles using ultrasound-induced bubbles @article{Yang2024AFS, title={A fundamental study of flotation separation of mineral particles using ultrasound-induced bubbles}, author={Anxiang Yang and Liguang Wang}, …

An overview of the beneficiation of iron ores via reverse …

The flotation separation under these conditions had the highest Gaudin's selectivity index (14.8). 6. Depressants. A common depressant used during the reverse cationic flotation of iron ores is corn starch containing over 98% of amylose and amylopectin due to its wide availability and good depressing abilities for iron oxides …

Hydrodynamic aspects of flotation separation

Abstract. Flotation separation is mainly used for removing particulates from aqueous dispersions. It is widely used for ore beneficiation and recovering valuable materials. This paper reviews the …

Nanobubble Enhances Rutile Flotation Separation in …

Due to the weak hydrophobicity of styrene phosphoric acid (SPA), the amount used as a collector for rutile flotation is too large, resulting in high beneficiation costs. In this study, SPA was modified by nanobubbles to enhance its hydrophobicity. In this paper, the modification of SPA by nanobubbles and the adsorption mechanism of SPA on rutile …

The Definitive Guide to Flotation Separation | Fote Machinery

Flotation separation mainly refers to froth flotation, which is based on the difference in physical and chemical properties of the surface of minerals, using the buoyancy of bubbles in the pulp to achieve separation. The flotation …

Modeling of Viscoplastic Fluids Separation in a

The mathematical model of separation of inhomogeneous fluid systems in centrifugal force field is adapted to viscoplastic fluid purification in a cylindroconical hydrocyclone by pressure flotation process. The model takes account of the action of inertial and Coriolis forces and associated mass of fluid. The system of partial differential …

An integrated experimental and computational

Flotation experiments demonstrate that employing THODA as a collector can yield a fluorite recovery of approximately 90%, while the recovery rate of calcite ranges between 10% and 20%. THODA exhibits a superior selectivity in the flotation separation of fluorite and calcite compared to oleic acid.

Study on synergistic inhibition and mechanism of flotation separation

The flotation separation of carbonated fluorite ores will be a long-standing problem in fluorite flotation. Therefore, it is very important to carry out flotation separation studies of refractory ...

Green hematite depression for reverse selective flotation separation

It was well-documented that reverse (cationic/anionic) flotation separation is the most comprehensive processing practice for enriching low-grade hematite ores, in which mineral liberations happen ...

s in mineral flotation and separation processes

Abstract. flotation is a process used worldwide to separate metallic and nonmetallic minerals from extracted ore. It is probably the single most important operation used in the mining industry in the world today. In the United States, for example, over one-third of the mineral concentrates produced are obtained using flotation [I].

Recovering Cobalt and Sulfur in Low Grade Cobalt-Bearing V…

There is 0.032% cobalt and 0.56% sulfur in the cobalt-bearing V–Ti tailings in the Panxi Region, with the metal sulfide minerals mainly including FeS2, Fe1−xS, Co3S4, and (Fe,Co)S2, and the gangue minerals mainly including aluminosilicate minerals. The flotation process was used to recover cobalt and sulfur in the cobalt-bearing V–Ti …

The low-carbon flotation separation of chalcopyrite from …

Nevertheless, during flotation separation of Cu/Fe sulfide minerals, these collectors usually suffer from the disadvantages such as low selectivity or high lime consumption. For example, xanthate collectors normally perform in the highly alkaline circumstances where the pulp pH is above 11.0 for an efficient separation of Cu/Fe …

Flotation separation of sphalerite from galena using eco …

Organic depressants have the advantages of variety and being environmentally friendly [15], thus showing broad application prospects in mineral flotation separation. Pullulan (PL) is a kind of extracellular water-soluble mucopolysaccharide similar to glucan and xanthan gum and it is produced by fermentation of bacillus brevis [16].

Flotation separation of fluorite from calcite using bis …

Abstract. The efficient separation of fluorite and calcite is a challenging task in the field of mineral processing because of their similar chemical and physical properties. In this research, octylamino- bis - (butanohydroxamic acid) (OBHA) was introduced as collector into a flotation system comprising fluorite and calcite, and the separation ...

Advanced Techniques on Fine and Coarse Particle Flotation

Flotation is a physicochemical process that is used for the separation of hydrophobic particles from hydrophilic ones. This method is widely used in mineral …

A fundamental study of flotation separation of mineral …

1. Introduction. Froth flotation is a versatile and widely used particle separation process. As the flotation rate constant is a function of particles size, however, at a typical flotation residence time the recovery of particles in different size fractions varies widely, with high flotation performance being limited to a narrow particles size range …