Removal of fine quartz from coal-series kaolin by flotation

Flotation tests were undertaken on both pure kaolin and quartz. All flotation tests were conducted in a 1.5 L mechanical laboratory flotation machine operating with an air flowrate of 4.5 L/min.The mass of solid particles used in each test was 30 g for both kaolin and quartz.These flotation tests were conducted in accordance with the …

Fe(III) as an activator for the flotation of spodumene, albite, and

The effect of Fe (III) ions on the flotation of spodumene, albite, and quartz minerals using sodium oleate (NaOL) was investigated by micro-flotation tests, zeta-potential measurement space ...

Towards a new process for the flotation of quartz

Results obtained from flotation experiments performed on three different quartz concentrates demonstrate that quartz can be floated in diluted solutions of hydrofluoric acid (HF) simply by the aid of frothers alone.

Differential adsorption of a high-performance collector

In this case, meanwhile, the quartz flotation is also depressed by excessive starch due to the clathrate interaction between the starch and the hydrophobic tail of amines ... Prior to each measurement, the pure mineral sample (2.00 g) was blended with deionized water (25.00 mL) in the flotation tank, followed by the addition of the desired ...

Flotation of quartz particles assisted by nanobubbles

Experimental studies of flotation of quartz particles, under various conditions and cells (setups), are presented. Pure and well-characterized quartz samples were treated with a commercial alkyl ether monoamine as flotation collector with bubbles in various sizes: coarse bubbles (400–800 μm); nanobubbles (200–720 nm); and their …

Exploring the effect of a polyacrylic acid-based grinding aid …

Grinding as a step prior to the flotation separation process influences the surface properties of the particles, the solution/pulp chemistry, ... Quartz and magnetite flotation tests were carried out using a 150 ml mini flotation cell (Clausthal cell, Germany) operated at 310 rpm and an airflow rate of 2 L/min. 7.5 g of the sample was added to ...

Study of new commercial collectors for the recovery of coarse quartz …

The poor flotation of coarse quartz particles (>0.150 mm) causes significant problems in various iron ore flotation circuits by contaminating the concentrate. ... Prior to the chemical analys e s ...

Insight into anionic and cationic flotation discrepancy of quartz …

The flow chart of quartz flotation is shown in Fig. 1.A 40 mL XFG tank flotation machine was used to conduct the flotation experiments [19]. 2.00 g of quartz particles and 30 mL of DI water were poured into the flotation tank and stirred to adjust the pulp for 2 min, after which pH regulator, activator (only present in anionic flotation), and …

Dissolution of starch and its role in the flotation separation …

Micro-flotation experiments were carried out to investigate the role of starch solubility in the flotation separation of quartz from hematite. Prior to flotation, starch solution was prepared at a fixed pH of 13 with varying temperature or at a fixed temperature of 65 °C with changing pH.

Iron Oxide Ore Mineralogy and Its Plant Flotation Circuits …

The suggested flotation process conditions based on an extensive investigation in a previous work by the authors 15 are 11.5 pH, 1 kg/t of starch for hematite/magnetite depression, 0.3 kg/t of calcium oxide for quartz activation, and 0.4 kg/t of TD-II for quartz flotation in the roughing flotation step, then 0.3 kg/t of TD-II at pH …

Activation mechanisms of quartz flotation with calcium ions …

Micro-flotation results indicated that 81.60% quartz was floated with both 5 × 10 −4 mol/L of CaCl 2, 2.5 × 10 −4 mol/L of NaOL and 3.0 × 10 −5 mol/L of DDA at pH 9.0, however, less than 10% of quartz was recovered without adding Ca 2+ or only using CaCl 2 and NaOL. AFM imaging revealed that Ca 2+ could adsorb on quartz in patches, which …

Agglomeration-Flotation of Finely Ground Chalcopyrite and Quartz …

Agglomeration-flotation of a mixture containing chalcopyrite and quartz with 1:1 ratio (w/w, weight by weight) showed that Si recovery in froth was low and did not change with varying conditions ...

Dissolved air flotation (DAF) of fine quartz particles using an amine

Pure and well characterised quartz samples were treated with a commercial amine as collector prior to flotation and bubbles were characterised by the LTM-BSizer technique. Bubble size distribution showed 71% (by volume) and 94% (by number) of the bubbles having sizes (d b) lower than 100 μm (i.e. microbubbles). The Sauter and …

Fundamentals of froth flotation | ChemTexts

In many systems, a collector may not adsorb at all on a mineral without prior activation of the mineral. In this respect, activation is a surface modification process that …

Selective Flotation of Quartz from Hematite by Amide

The selectivity window between quartz and hematite flotation using amide-amine was higher at pH 10.5 (approximately 80% for 5 mg/L). Therefore, the use of starch is not necessary in siliceous ...

Contribution on fluid inclusion abundance to activation …

Many researchers have proved that flotation is an efficient technique to concentrate quartz (Wang et al., 2005; Mowla et al., 2008). It was studied by Larsen et al. (2015) that quartz …

New perspectives in iron ore flotation: Use of collector …

Prior to the start of contact angle measurements, ... Similarly, a depressant was found to be required for hematite during quartz flotation using amine collectors to achieve adequate selectivity in the concentration process. When using only etheramine almost of the quartz and 50% of hematite reported to the froth product.

Cu(II) and Ni(II) activation in the flotation of quartz, lizardite and

The flotation of quartz, chlorite and lizardite with copper and nickel ions as activators and xanthate as collector will be investigated as a function of pH. Zeta potential measurements and infrared spectroscopy will also be used to identify the surface copper, nickel and xanthate species responsible for quartz and MgO mineral flotation. 2.

Quartz Flotation

For quartz particles ranging in size from 0.2 to 1 mm, it was demonstrated that the concentration of calcium in solution (assumed present as ions) necessary to completely activate quartz for flotation is given by the expression: Ca++ = [H+] x …

Cu (II) and Ni (II) activation in the flotation of quartz, lizardite

Show abstract. ... Fornasiero and Ralston's work showed that quartz could be activated by Cu 2+ and Ni 2+ ions at a pH level of 7.0-10.0. The stable species adsorbed on the mineral surface, such ...

Selective flotation of quartz from feldspar using …

Previous studies have shown that both Ca 2+ and Mg 2+ can promote flotation of quartz due to the negative charge on the surface of quartz in a weakly alkaline environment (Liu et al., 2015)pared to Ca 2+, Mg 2+ forms hydroxyl compounds (Mg (OH) +) at a lower pH and leads to a more efficient activation on quartz surface.NaOL is …

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 …

Effects of Ultrasound on Desliming Prior to Feldspar Flotation …

In this study, the effects of ultrasound on removal of impurities from raw feldspar were investigated by testing with a newly developed flotation cell with various frequency and power intensities prior to multistage feldspar flotation. Particularly, the quality of feldspar concentrates, the volume of removed slimes and the content of …

Cu(II) and Ni(II) activation in the flotation of quartz, lizardite …

The flotation of quartz, chlorite and lizardite with copper and nickel ions as activators and xanthate as collector will be investigated as a function of pH. Zeta potential measurements and infrared spectroscopy will also be used to identify the surface copper, nickel and xanthate species responsible for quartz and MgO mineral flotation.

1 Froth Flotation – Fundamental Principles

1 Froth Flotation – Fundamental Principles. Froth flotation is a highly versatile method for physically separating particles based on differences in the ability of air bubbles to selectively adhere to specific mineral surfaces in a mineral/water slurry. The particles with attached air bubbles are then carried to the surface and removed, while ...

Preconcentration strategies in the processing of nickel …

A number of feed preparation techniques ahead of flotation were attempted at laboratory scale on a sample of Ni laterite containing predominantly goethite and quartz. Flotation tests even on closely sized particles (38–75 μm) failed to yield significant Ni upgrades using the reagents tested in this study, based on those used commercially for ...

Minerals | Special Issue : Recent Advances in Flotation …

Recent Advances in Flotation Process. A special issue of Minerals (ISSN 2075-163X). This special issue belongs to the section "Mineral Processing and Extractive …

Non-HF collectorless flotation of quartz

Pure mineral flotation experiments have demonstrated that quartz can be floated without a collector, in solutions containing an inorganic acid (e.g. H2SO4) and sodium fluoride (NaF). Excellent quartz recoveries, similar to that of previous investigations with aqueous solutions containing hydrofluoric acid (HF), have been achieved with lower ...

Flotation of quartz from quartz-feldspar mixtures by the HF …

This study demonstrates a high flotation separation selectivity between quartz and different types of feldspar, and that quartz can be readily floated from …

Mica Beneficiation

These two mica flotation processes are currently being used commercially by the mica industry. The research also showed the effectiveness of using Humphreys spirals to pre-concentrate the ore and remove a large part of the quartz and heavy minerals prior to flotation. Part 2.—Industrial Mica Production

The separation of kyanite from quartz by flotation at acidic pH

Flotation tests were conducted by using kyanite and quartz single minerals. The effect of pH on the flotation recovery when using 3.0 × 10 −4 mol L −1 sodium petroleum sulfonate (SPS) as the collector is shown in Fig. 1.Kyanite recovery increased significantly with pH and reached a maximum of 58% at pH 4 and then started to decrease.

Flotation and adsorption characteristics of albite and quartz …

Albite (NaSi 3 AlO 8) and quartz (SiO 2) test samples were handpicked from Cine, province of Aydin, Turkey, and were wet sized in − 212 + 38 µm range.X-ray diffraction (XRD) and X-ray fluorescence (XRF) analyses were employed to characterize each mineral sample. According to the XRD patterns obtained (Fig. 1 (a-b)), the mineral …