Flotation of quartz from quartz-feldspar mixtures by the …

Froth flotation is the selected method for the separation of quartz and feldspar. In the conventional process, feldspar is floated from quartz by using hydrofluoric acid (HF) as activator for the feldspar and a cationic collector (amine) at pH 2–3 (O'Meara, 1939). (1979) reported that HF creates a large difference in the minerals' zeta potentials as the zeta …

Effect of sodium hexametaphosphate on the flotation …

The present study employed sodium hexametaphosphate (SHMP) as a depressant for quartz to achieve selective flotation separation of lepidolite. Micro-flotation and artificial mixed-mineral tests ...

Contribution on fluid inclusion abundance to activation …

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 could be floated in diluted solutions of hydrofluoric acid (HF) simply by the aid of frothers alone. However, flotation is affected by many

Exploring the behavior of an alcoholic amine grinding aid in …

Due to the large difference between the zero electric point of quartz and magnesite, the cationic reverse flotation process with amines as the collector was the inevitable choice for the desilication of magnesite [10], [11].Zhu [12] explored the desilication effect of magnesite with 45 % MgO grade and 3.77 % SiO 2 grade. In the study, DDA was used as the collector and …

Quartz Flotation

On the basis of experiments conducted on quartz using a bubble pick-up method, it was shown in an earlier paper that this mineral will preferentially adsorb hydrogen, calcium, or …

Flotation of Quartz and Hematite: Adsorption Mechanism of …

The quartz flotation recoveries are presented at 5 -5 -4 -4 10, 1 10 and 5 10 M initial C12 amine, oleate and sodium dodecyl sulphate concentrations simultaneously -5 (refer Figure 3A). At 5 10 M C12 amine concentration, the rapid rise in quartz recovery begins at about pH 3.5 and above which almost 90% flotation recovery is attained ...

Effect of TIPA/TEA combined grinding aid on the behavior of quartz …

Whether quartz was discarded as a gangue mineral or purified as a raw material of non-metallic minerals, flotation was one of the effective methods to collect it [[8], [9], [10]].The current flotation reagents of quartz can be divided into cationic collectors, anionic collectors and the anion/cation mixed collectors [11].DDA was used as a cation collector and had a wide …

Influence of surface roughness on flotation kinetics of quartz

It has been shown that the surface roughness has an effect on the surface wettability or flotation performance of quartz [7, 19, 20], barite [21], malachite [22], glass beads [8], complex sulfide ...

Zeta-potentials of quartz and hematite as a function of pH

The flotation test led to a partial flotation of quartz into the froth products, reducing the grade of hematite direct flotation concentrate, which is consistent with industrial production. View ...

CALCIUM ACTIVATION IN SULPCÎ'IATE AND OLEATE …

Cationic flotation of quartz has been thoroughly studied by de Bruyn (1), Cook (2)f Fuerstenau (3)9 Gaudin ( 3, 4, 5), and Wadsworth ( 6), and is reasonably well understood 0 On the other hand, the same level of understanding of the flotation characteristics of quartz with anionic collectors has not

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 feldspar in diluted …

Quartz Flotation Sierra

As the concentration of water glass increases, the flotation recovery of all three particle sizes of magnesite, before and after ultrasonic treatment, remains below 10%, indicating a significant inhibitory effect of water glass on magnesite flotation. For quartz, the flotation recovery of the −150+106 μm particle size is over 80%.

A Comparative Study of Quartz and Potassium …

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 selectively floated from quartz.

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 mixtures.The nanobubbles were …

Application of novel ionic liquids in flotation separation of quartz …

Application of a novel ionic liquid as flotation reagent in the flotation separation of quartz and magnesite has been investigated. The flotation behavior and surface properties of quartz and magnesite flotation with dodecyl trimethyl ammonium-diethylphosphonic acid (N12111-DEPA) as flotation reagent were studied by microbubble flotation experiments, contact angle, …

[PDF] Application of dodecyl amine/dodium petroleum …

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 …

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Selective flotation of quartz from feldspar using …

Quartz and feldspar cannot be efficiently separated using physical methods owing to their similar physicochemical properties. In recent years, flotation has emerged as the most effective method for separating feldspar and quartz (Larsen and Kleiv, 2016, Shu et al., 2020, Xu et al., 2020).Traditional flotation methods to separate these two minerals generally include …

Effects of Interfacial Hydroxylation Microstructure …

Given the strong polarity of the quartz surface, it is easy to hydrate to form a hydroxylation layer, which makes it impossible to float quartz with sodium oleate (OL) used alone. An ideal flotation method for quartz is …

Parameters of Collision and Adhesion Process Between a …

The successful adhesion of air bubbles to mineral particles is the crucial to flotation technology. This paper systematically investigates the parameters variation in the dynamic interaction process between a rising bubble and a quartz plate in long-chain amine solutions (dodecylamine, tedecylamine, and octadecylamine). The results show that the type and …

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

For the froth products, the quartz content of 2-F-Qtz reaches 97.42% and the SiO2 grade is 99.12% at a quartz flotation recovery of 70.20%. For the sink products, the feldspar content of 4-S-Fsp ...

Effect of impurity content difference between quartz particles …

Liu et al. studied the effect mechanism of the isopropanol substituent on amine collectors in the flotation of quartz [31]. Using Poly (propylene glycol) bis (2-aminopropyl ether) (PEA) as a collector, the flotation recovery rate of quartz sand is almost under a natural pH condition [32]. Flotation is commonly used to separate quartz from ...

Effect of Solid Concentration and Particle Size on the Flotation

In this study, the flotation kinetics and entrainment in quartz and hematite single-mineral flotation systems as a function of the solid concentration and particle size were investigated using ...

CALCIUM ACTIVATION IN SULPCÎ'IATE AND OLEATE …

Flotation of quartz has received extensive study with both cationic and anionic collectors because of its frequent occurrence in ore deposits 9 its availability, and its ability to be cleaned with …

Towards a new process for the flotation of quartz

Traditionally, HF has performed two functions in the production of high purity quartz concentrates: Firstly, it has been used to activate feldspar prior to its flotation by amine collectors – thus enabling the separation of feldspar and quartz at low pH where the zeta-potentials of the former remains negative while that of the latter becomes close to neutral (Buckenham and …

Improving Feldspar Flotation Using CTAB As Amine …

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 …

Improved Quartz Flotation at Low Temperature by Amino …

In this study, the new amino acid surfactant LL is used as a collector for quartz flotation at low temperatures. The experimental results show that LL is an efficient collector …

Effect of silicate bacteria on quartz flotation …

To cite this article: Qing Teng & Hongjun Wang (2020): Effect of silicate bacteria on quartz flotation separation, Separation Science and Technology, DOI: 10.1080/01496395.2020.1745238

Effects of Interfacial Hydroxylation Microstructure on Quartz Flotation

An ideal flotation method for quartz is preactivation with Ca 2+, followed by collection with OL. Herein, the effects of surface hydroxylation on the adsorption of the anionic collector OL on the quartz surface before and after Ca 2+ activation are systematically investigated by density functional theory (DFT) calculations.

Metal ion activation in xanthate flotation of quartz

FLOTATION OF QUARTZ by M. C. Fuerstenau, J. D. Miller, R. E. Pray and B. F. Perinne Quartz cannot be floated with potassium amyl xanthate as collector at any pH. Complete flotation is achieved with certain minimal additions of amyl xanthate and Pb++ from pH 5.8 to 8.5 and with amyl xanthate and Zn++ from pH 7.5 to 8.1. The active

Study on the influence of particle size on the flotation …

The pH of positive flotation test is 6, and the pH of reverse flotation test is 12 as the test conditions of mixed flotation. 2 g of kaolinite was mixed with quartz as flotation samples, and the Al/Si value of flotation samples was calculated to be 0.334 based on the contents of Al 2 O 3 and SiO 2 in the chemical composition of kaolinite and ...

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 itabirite flotation by amide–amine collector. Zeta potential measurements and infrared spectra reveal that the adsorption of amide-amine collector on ...

Assessment of selective quartz flotation in phosphate …

In this study, the challenge of selectively recovering silicates from a sedimentary carbonaceous siliceous phosphate ore was successfully addressed, enabling the recovery of an enriched …

Influence of Different Types of Surfactants on the Flotation …

1. Introduction. Quartz is a typical silicate mineral and is common gangue mineral in the beneficiation process of various types of ores [1,2,3].Flotation is one of the main methods to separate quartz from ores [4,5].Taking iron, a strategic metal mineral, as an example, efficiently removing silicate minerals, including quartz, from iron ore is one of the critical objectives in iron …