The flotation tests for the hematite-quartz mixture confirmed that a suitable starch with proper solution preparation is necessary for achieving a high flotation separation efficiency. Specifically, 65–75 °C or pH 13 was the preferred condition for dissolving WS, NS and G50 whereas for G80, a higher starch solution preparation …

However, those reagents were found to exhibit depression effect on the quartz flotation [12âˆ'16], which results in a growing demand for introducing a new environmentally friendly reagent to achieve efficient flotation separation of quartz and magnesite [17]. Carboxymethyl celloluse (CMC) is a naturally existing non-toxic chemical …

Thus, LBG can be used as a selective depressant of hematite in flotation separation from quartz. Figure 9. FT-IR spectra of (a) Hematite and (b) Quartz treated with 300 mg/L of LBG.

The higher flotation separation at pH 3 and below 1 × 10 −4 M of collector was caused by increase in the attractive force between the quartz particles and air bubbles, which was triggered by the collector adsorption. When the hydrophobic attractive force was applied to the extended DLVO theory, the analyses of interaction forces explained ...

Flotation is an indispensible tool in the production of high purity quartz concentrates for such uses, as most of the contaminating minerals can be floated with …

Quartz, the gangue of phosphorite ore, is challenging to be separated at low temperatures. In this work, an amine-typed Gemini surfactant, N,N'-bis(dodecyldimethyl)-1,4-butane dibromide (BBD) was recommended as an emerging collector for reverse flotation separation quartz from phosphorite ore.

A series of initial experiments carried out with magnesite, quartz and dolomite as a single mineral indicated that separation of magnesite from quartz and dolomite can be better at pH 8.0 (Liu et al., 2018, Liu et al., 2019;) and DDA 30 mg/L (Sun et al., 2021., Yao et al., 2016).Therefore, the flotation tests were performed to observe the floatability of …

G J Sparrow. This paper reviews the application of flotation for the separation of feldspar from the other minerals with which it naturally occurs (such as …

The artificially mixed mineral separation results demonstrated that DNET could effectively separate hemimorphite from quartz. The flotation separation results showed that the grade and recovery of ...

The flotation results showed that LS exerted high selectivity for hemimorphite, and flotation separation of hemimorphite from quartz was achieved at an LS concentration of 3.4 × 10 −4 mol/L and a pulp pH of 7. In contrast to sodium oleate (NaOL), LS exhibited a higher Gaudin's selectivity index (SI) of 67.58 under the optimal …

The selective separation mechanism of feldspar and quartz was revealed by flotation experiments, Fourier transform infrared spectroscopy (FTIR), X-ray photoelectron spectroscopy (XPS) and contact angle analysis. These experiments show …

Mixed mineral flotation showed that by using AAG, Fe recovery of 92.1% and 64.5 % Fe grade could be achieved with a lower collector dosage of 100 g/t compared to 200 g/t in the absence of AAG.

The flotation results showed that TMNP exhibited strong collecting ability for pyrochlore, but showed no selectivity towards quartz or feldspar. Separation experiments showed sodium aluminium silicate was an effective depressant for the separation of pyrochlore, feldspar, quartz, and calcite.

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 …

This paper reviews the application of flotation for the separation of feldspar from the other minerals with which it naturally occurs (such as quartz, clay minerals, mica, ilmenite, rutile, anatase and magnetite) as well as the separation of the individual feldspar minerals themselves. Much of the published information on feldspar flotation ...

The influences of particle size on the flotation separation of kaolinite and quartz was explored by flotation tests of full-size and various sizes, zeta potential analysis. The flotation separation effects of kaolinite and quartz mixed minerals under different conditions were analyzed by calculating the characteristic parameters such as K, R ...

The influences of particle size on the flotation separation of kaolinite and quartz was explored by flotation tests of full-size and various sizes, zeta potential analysis. The flotation separation effects of kaolinite and quartz mixed minerals under different conditions were analyzed by calculating the characteristic parameters such as K, R ∞, …

Selective Flotation of Quartz and Feldspar Using Non-Ionic Surfactant. In order to develop the HF-free flotation reagent system, the main objective of this investigation was to …

There is a high flotation separation selectivity between quartz and different types of feldspar. A feldspar concentrate of 99.9% at a recovery of >95% was produced. …

Materials. Pure quartz (> 99% SiO 2) and magnetite (> 96% Fe 3 O 4) samples (Fig. 1) were obtained from VWR, Sweden.The samples were ground using a laboratory-scale ball mill to produce flotation feed

In the flotation separation of pentlandite and fine quartz, CMC can be used to inhibit quartz recovery with a marginal impact on pentlandite recovery. Discover the world's research 25+ million members

The flotation separation of muscovite from quartz was investigated using mixed sodium oleate/dodecylamine acetate (NaOL/DDA) collectors. The experiments were conducted on single minerals and on a mixture of minerals, and their collecting performances were studied by means of Fourier transform infrared (FTIR) spectroscopy, …

An effective separation of kyanite from quartz by flotation is a challenge due to their similar surface properties and surface activation by metal ions. This study investigated the effect of pH, Fe 3+ and sodium silicate on the separation of kyanite from quartz using anionic collector, sodium petroleum sulfonate (SPS). Zeta potential ...

The asynchronous flocculation flotation results confirmed that PEO was capable of enhancing the separation of ultra-fine hematite and quartz. In order to investigate the flocculation performance, sedimentation behaviors of quartz and hematite with different chemicals were studied and the results are shown in Fig. 6 .

Quartz and feldspar cannot be efficiently separated using physical methods owing to their similar physicochemical properties. In recent years, …

The flotation performances of molybdenite from quartz as a function of kerosene concentration were investigated. As shown in Fig. 2, the Mo recovery and grade increased gradually as kerosene concentration increased and decreased in the kerosene concentration of more than 200 mg/L.It should be noted that, for the micro-fine …

At present, the primary beneficiation approach of fluorite is flotation [5].In the deposits, fluorite is often associated with gangue minerals such as calcite and quartz, which share similar surface properties with fluorite (i.e. solubility, crystal structure, hydrophobicity, and zeta potential), making the effective separation challenging to achieve [[6], [7], [8]].

Flotation tests on the artificial mixture were performed on the magnetite and quartz mixture with a mass ratio of 2:1 to determine the effect of improved quartz collection separation from magnetite. The flotation feed of the mixture had a Fe grade of 58.7 %. As shown in Fig. 5, the addition of AAG influences both recovery and grade. The result ...

This study demonstrates a high froth flotation separation selectivity between quartz and feldspar and that quartz can be readily floated in diluted HF …

The separation of spodumene and quartz is relatively difficult as they have similar physicochemical properties. To solve this problem, the role of carboxylate chitosan (CCS) in the separation of these two minerals using dodecylamine (DDA) as the collector was studied, and the depression mechanism was discussed through contact angle test, …