The present study investigates the effects and mechanisms of aluminum (Al(III)) and iron (Fe(III)) ions on the flotation efficiency of potassium feldspar (K-feldspar) within oleate collector systems.
The relative abundance of feldspar in the non-magnetic fraction supports the efficiency of magnetic separation for reuse of oxygen carrying particles. However, the presence of Fe-rich phases such as Fe 2 TiO 5 and FeTiO 3 suggests that even parts of the non-magnetic fraction exhibit oxygen carrying abilities and are lost in the waste streams.
In this study, the flotation separation of spodumene from feldspar was achieved using mixed collector of sodium oleate (NaOL)/cetyl trimethylammonium bromide (CTAB). Micro-flotation experiments show that the selective flotation separation of the two minerals could not be achieved in the presence of single collector under the pH range of 2–12, but the they could be …
However, the enrichment of the feldspar ore by other methods such as gravity separation (Gulsoy and Kademli 2006), leaching (Styriakovaa et al. 2006), and magnetic separation (Cocen et al. 1996 ...
enables the separation of K-feldspar from other minerals, thereby improving its purity and K 2O/Na 2O ratio (Demir et al., 2004). ... flotation recovery rate of K-feldspar. Specifically, Fe3+ has a considerable effect on the flotation of K-feldspar across a wide pH range, achieving nearly a 90% recovery rate at pH 9. In contrast, Al3+
Generally, the collectors for the flotation separation of spodumene and feldspar are mainly single anionic and cationic collectors such as sodium oleate (NaOL), oxidized paraffin soap, naphthenic acid soap, fatty amines, quaternary ammonium salts and gemini surfactants [9].Metal ions (Ca 2+, Mg 2+, Fe 3+) activation is required when anionic collectors are …
Under the conditions of DB21C7 concentration = 80 mg/L and pH value = 6, effective separation of pollucite from feldspar and quartz was achieved. Under such conditions, the recovery rates of pollucite, feldspar and quartz were 88.9 %, 53.5 % and 18.2 %, respectively, suggesting that DB21C7 could be utilized in more complex flotation systems.
When feldspar slime is milled for 2 h, floated with a 2% collector dosage and settled for 10 h in gravity separation, the resulting feldspar concentrate contains 12.6% Na 2 O + K 2 O and 0.21% Fe 2 O 3, with a mass recovery and burnt whiteness of 58.0% and 53.6%, respectively. This feldspar concentrate meets the requirements of the glass and ...
In this study, feldspar ore was successfully enriched using a two-stage process. Initially, dry magnetic separation was employed to remove iron oxide, followed by cationic flotation to eliminate gangue minerals containing free silica. A feed sample with a size fraction of (− 0.25 + 0.053) mm, pre-treated by attrition scrubbing and dry high-intensity magnetic separation …
separation of feldspar from quartz. The selectivity achieved in feldspar-quartz separation is discussed terms of collector chemistry and liberation size of the constituent minerals. Experimental Mineralogy and characterization of ore. The representative ore sample assays 77.21 % Si0 2, 12.35% A1 20 3, 6.32% K 20, 1.95% Na20, 0.08% Ti0 2 and 0. ...
The accompanying veinstone minerals are usually feldspar, quartz, and mica [5], [6], [7]. The most commonly used technique for spodumene beneficiation is flotation [8]. However, albite (NaAlSi 3 O 8 ), which is a common type of feldspar and a commonly associated veinstone mineral of spodumene, has surface characteristics and floatability ...
magnetic impurity from potash feldspar with higher pulp density. The iron magnetic impurity separates mixed with potash feldspar, therefore concentrate yield and iron grade are high, too. 3.3 Influence of magnetic field intensity on the iron removal from potash feldspar ore Magnetic separation is a process that minerals
It's highly challenging to separate feldspar from quartz by flotation owing to their similar crystal structure and physicochemical properties. Using mixed collectors has become a promising method to improve the quartz-feldspar separation. In this study, mixed dodecyl amine (DDA) and sodium petroleum sulfonate (SPS) surfactants were used in the flotation separation …
The effects of Ca(II), Mg(II), Cu(II), and Fe(III) on the flotation separation of spodumene from feldspar and quartz were investigated by single-mineral and artificial-mixed-ore flotation experiments using α-bromododecanoic acid (α-BDDA) as a collector. ... Therefore, Ca(II) and Mg(II) facilitated the separation of spodumene. However, Fe(OH ...
Through flotation experiments, adsorption measurements, zeta potential testing, FTIR analysis and X-ray photoelectron spectroscopy (XPS), the mechanism of Fe 3+ on the surface of feldspar and epidote is revealed, and …
In this study, the separation of feldspar minerals (albite) from slimes containing feldspar and iron containing minerals (Fe-Min) was studied using dissolved air flotation (DAF) technique whereby bubbles less than 100 μm in size are produced. Before the flotation experiments with slimes, single flotation experiments with albite and Fe-Min were carried out …
In this study, the separation of feldspar minerals (albite) from slimes containing feldspar and iron containing minerals (Fe-Min) was studied using dissolved air flotation (DAF) technique whereby bubbles less than 100 μm in size are produced.Before the flotation experiments with slimes, single flotation experiments with albite and Fe-Min were carried out …
Separation of quartz and feldspar s.s.s using magnetic separation techniques are rather doubtful in practice. ... Both minerals can be intergrown with Fe giving rise to special modifications such ...
Accordingly, it was found that particle size and solid contents had significant effect on the separation. Best results were obtained with feed solid content of 15% by weight for the particle size fraction of −212 + 74 μm. In line with this, Fe 2 O 3 content, which was 0·71% in the feed, decreased to 0·07% in concentrate.
In this work, a novel collector named Fe-OHA-SDS was used to separate spodumene from feldspar. The selective adsorption and separation mechanism on their …
Through flotation experiments, adsorption measurements, zeta potential testing, FTIR analysis and X-ray photoelectron spectroscopy (XPS), the mechanism of Fe3+ on the surface of feldspar and...
The δ88/86Sr variation of the Huili granites can be explained by separation of melt from K-feldspar-dominated crystals, because crystallization of K-feldspar can result in heavy Sr isotopic composition of the extracted interstitial melt. ... (A/NK = 1.15–1.3 and A/CNK = 1.06–1.31), and they have low Fe 2 O 3 t, TiO 2, and MgO contents (Fe ...
An alternative process which exhibited effective separation of quartz and feldspar while recycling the tailwater from the flotation was proposed. X-ray diffraction (XRD) spectra of the purified ...
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 separation of feldspar and …
study the flotation of feldspar using anionic collectors under natural pH conditions. The purpose of this paper is to study the effects and mechanism of Fe3+ on flotation separation of feldspar and epidote using sodium oleate (NaOL) at a natural pH. …
The flotation process and magnetic separation are the most common methods for feldspar beneficiation containing approximately 0.4% Fe2O3 and 0.04% TiO2.
of size -250+45µm. Carpco dry high-intensity magnetic separation followed by acid leaching processes were carried out in order to decrease the iron contamination and increase the feldspar content. A Box-Behnken statistical design was used to optimize the magnetic separation results. From a feldspar feed containing 1.40% Fe 2 O 3
Since that time, two different processing techniques have been developed for the separation of feldspar from the other minerals with which it occurs. This separation can be carried out dry, using electrostatic separation …
The flotation behaviors of α-bromododecanoic acid (α-BDDA) on the separation of spodumene from feldspar and quartz with Ca(II) as activator were investigated through single mineral and ...
The counts were reduced to 166, 43, 16 and 0.5 for T-1, IS-19, IS-15 and IS-3 respectively after separation with Fe powder. This shows that there is 2 order of magnitude decrease in the IRSL counts (Fig. 5) and the method is working well. Download: Download high-res image (475KB) ... i.e. after the removal of the feldspar using Fe powder. The y ...