Flotation separation of feldspar from quartz using sodium …
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 …
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A Comparative Study of Quartz and Potassium Feldspar Flotation …
An improved method for producing high-purity quartz (Qtz) and potassium feldspar (Kfs) concentrates was developed using various chemical reagents. Froth flotation experiments on a Qtz–Kfs mixture showed that quartz could be selectively floated from Kfs in diluted hydrofluoric acid (HF) using a frother. Similarly, feldspar could be …
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Flotation behavior and mechanism of α
@article{Xie2021FlotationBA, title={Flotation behavior and mechanism of $alpha$-bromododecanoic acid as collector on the flotation separation of spodumene from feldspar and quartz}, author={Ruiqi Xie and Yimin Zhu and Jie Liu and Yan-jun Li}, journal={Journal of Molecular Liquids}, year={2021}, volume={336}, pages={116303}, …
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Reverse flotation separation of quartz from phosphorite …
Multiple amine-typed surfactants are used as collectors for flotation separation of quartz from phosphate ore. Primary aliphatic amines (R-NH 2) ... 2.03% feldspar, 2.34% kaolinite, and 0.19% limonite by the results of mineralogy analysis. The chemical composition of phosphate ore is shown in Table 1. The samples and water for …
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Selective flotation separation of spodumene from feldspar …
ND13 was mainly used for the separation of quartz from feldspar, barite from fluorite, hematite from pyroxene, and the separation of aluminosilicate minerals, but the application on spodumene was rare. Attempts were made to separate spodumene from feldspar on flotation using the mixture of NaOL and ND13 as the anionic/cationic …
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Adsorption mechanism of mixed anionic/cationic
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, …
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Flotation of quartz from quartz-feldspar mixtures by the HF …
Flotation experiments performed on a quartz-feldspar mixture demonstrate that quartz can be floated selectively from feldspars in diluted solutions of hydrofluoric …
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The role of depressant pectin in the flotation separation of …
Quartz is difficult to separate by flotation due to its similar surface physicochemical properties to spodumene. 2 mg/L pectin and 0.005 mol/L NaOL at pH 11 allowed mineral separation. Pectin is chemically adsorbed on spodumene through –COO– and Al sites on spodumene. Pectin pre-sorption interferes with the adsorption of NaOL …
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Adsorption mechanism of mixed cationic/anionic collectors in feldspar
A HF free flotation process using a mixture of cationic and anionic collectors for the separation of feldspar from quartz was described by Katayanagi [8] ... The mechanism of selective feldspar flotation from quartz in mixed alkyl diamine/sulfonate collectors at pH 2 is distinguished. The charge difference between microcline and quartz …
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Developing Effective Separation of Feldspar and Quartz …
In order to improve the purity or the whiteness of feldspar, flotation [ 3, 4, 5] and magnetic separation are typically used to remove associated minerals (such as …
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A self-assembly mixed collector system and the mechanism …
The mixture of DDA and α-BDDA was used as a collector to separate spodumene from feldspar and quartz. The effects of the DDA: α-BDDA molar ratio, collector concentration, pH value and flotation reagent adding sequence on the separation of spodumene from feldspar and quartz were evaluated by the micro-flotation …
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Separation of feldspar from quartz using EDTA as modifier
For the froth products, the quartz content of 2-F-Qtz reaches 97.42% and the SiO 2 grade is 99.12% at a quartz flotation recovery of 70.20%. For the sink products, the feldspar content of 4-S-Fsp reaches 94.77% and the SiO 2 grade is 69.50% at a feldspar flotation recovery of 87.45%. A competitive-adsorption model is proposed to explain the ...
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The flotation behavior and adsorption mechanism of a new …
The flotation behaviors of PPPDA on the separation of spodumene from feldspar and quartz were investigated through single mineral flotation experiments. The effects of pH, PPPDA concentration, metal ions concentration and the adding sequence of these reagents during the separation process were evaluated.
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Study on Flotation Mechanism of Separation of Potassium Feldspar from
Potassium feldspar and quartz are all silicate minerals with frame structure,and have the similar crystal structure and physicochemical properties. Therefore, flotation has become the main method to separate potassium feldspar from quartz. The separation of potassium feldspar from quartz with anion and cation mixed collector was studied in …
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[PDF] Application of mixed collectors on quartz-feldspar by …
Quartz and feldspar are usually exist in symbiosis in nature, and they are difficult to be separated effectively by conventional physical methods owing to their similarities in crystal structures and surface characteristics. Flotation is the most resultful method, and especially, flotation with hydrofluoric acid (HF) is the most efficient way. …
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Review of flotation of feldspar
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, …
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Selective flotation separation of spodumene from feldspar …
The flotation separation of spodumene from other complex aluminosilicate minerals such as feldspar and mica, is problematic, due to their same active Al site for interaction with anionic collectors (Rai et al., 2011). In practice, the general method to accomplish effective spodumene flotation is to add amount of depressants associated …
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Adsorption mechanisms of activated surface of quartz and feldspar …
Froth flotation, especially the HF method, is used for the flotation separation of feldspar and quartz and is an effective method for separating two minerals. Larson et al. used Brij 58 (polyoxyethylene cetyl ether with 20 molecules) as a frother and pretreatment with 40% HF to separate quartz and feldspar [5]. Their results showed …
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Flotation Behavior, Collector Adsorption Mechanism of Quartz …
A novel green cationic surfactant Poly (propylene glycol) bis (2-aminopropyl ether) (PEA) with multiple amine groups was utilized as a collector for flotation separation of quartz from feldspar-quartz associated ore (FQA) without acid (particularly, HF) and alkali. The collecting performances and the adsorption mechanisms of PEA on the …
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Understanding the role of sodium hydroxide in the selective flotation …
In our latest study, surface dissolution of minerals has been found to be important in the flotation of spodumene. This study provides further information in the role of NaOH in the flotation separation of spodumene from feldspar and quartz using size distribution analysis, micro-flotation experiments, AFM imaging, X-ray photoelectron …
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Green and sustainable recovery of feldspar and quartz from …
The present researches on the flotation of quartz and feldspar are based on single mineral and artificial mixed minerals flotation tests. The separation processes can be categorized into three types, as shown in Table 1 (Karaguzel et al., 2006, Larsen and Kleiv, 2016, O'meara, et al., 1939, Sekulić et al., 2004, Xie et al., 2021a).Although the …
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Atomic insight into the activation mechanism of feldspar by …
ABSTRACT As we all know, sodium oleate (NaOL) is usually used as a collector for oxidized minerals, but in this study, it is used as an activator for feldspar to separate from quartz. Therefore, the adsorption mechanism, topography, and configurations of NaOL on the quartz and feldspar surface were investigated using X …
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Review of flotation of feldspar
The role of surface silanol groups in flotation separation of quartz from feldspar using non-ionic surfactants. Proc. XVIII Int. Mineral Processing Cong., Sydney, NSW, Australia, May, The Australasian Institute of Mining and Metallurgy, Vol. 4, 845–849. Google Scholar. Fuerstenau D.W., Fuerstenau M.C. 1982. The flotation of oxide and …
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Role of Soluble Starch in the Flotation Separation of Feldspar and Quartz
The role of soluble starch in the flotation separation of feldspar from quartz was revealed through the single mineral flotation test, potentiodynamic test and absorption measurement. The results showed that soluble starch inhibited the flotation of feldspar and quartz when dodecylamine (DDA) and sodium dodecyl sulfonate (SDS) were used …
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Flotation of quartz from quartz-feldspar mixtures by the HF …
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 …
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Feldspar Beneficiation & Flotation Process
Feldspar Beneficiation & Flotation Process. Beneficiation by Flotation of feldspar is well established. It is a simple matter by flotation to remove the contaminating impurities and keep the alumina (Al2O3) content at 19% even on low grade feldspar ores. Dry recovery methods are economically limited to about 17% Al2O3.
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Review of flotation of feldspar
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 …
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The role of alkaline earth cations in flotation separation of quartz …
The flotation responses of quartz and feldspar with alkylsulfonates' collectors in the presence of some alkaline earth metals were studied. The activation mechanism in these systems is discussed in terms of hemimicellization and surface precipitation of neutral component of cation-sulfonate complex, e.g. Ca(OH)RSO 3.. …
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A self-assembly mixed collector system and the mechanism …
Flotation separation has been widely used in the process of ore dressing because of its high separation efficiency and economy (Chen et al., 2021a, ... the zeta potential of feldspar or quartz was consistent before and after the addition of the DDA/α-BDDA at pH 7.1, which revealed that the weak adsorption of the DDA/α-BDDA on …
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The role of depressant pectin in the flotation separation of …
The binary mixed mineral flotation experiment of quartz and spodumene was carried out to verify the separation effect, and the results are shown in Table 2. From Table 2, spodumene and quartz can be separated using pectin as depressant at pH 11, and a concentrate with a Li 2 O grade of 6.78% and a recovery of 65.79% is achieved.
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