Role of citric acid in selective flotation of limonite from quartz
The effects of Fe 3+ and citric acid on the flotation behavior of both limonite and quartz and their separation were evaluated at pH 9.5 by using batch flotation tests, and the interaction mechanisms were investigated by solution chemistry, zeta potential measurements, infrared spectroscopy (IR), X-ray photoelectron spectroscopy (XPS), and ...
The application of a novel amine collector, 1
In cases where the contents of quartz in phosphate ores are excessively high, the direct flotation process for these phosphate ores using anionic collectors leads to the inclusions of fine-grained quartz particles in flotation concentrates, carried by the air bubbles within slurry, ultimately causing the reductions in the grades of apatite within the concentrates.
Cationic flotation of quartz from an artificial mixture
The cationic flotation of quartz was carried out from an artificial mixture (1:1 by weight) of fine grained ( − 10 μm) quartz and hematite, using hexylamine acetate (HAA) and dodecylamine acetate (DAA) as collectors. Selective flotation of quartz was possible in the pH range 9–10 using HAA.
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 separation of feldspar …
Desilication and purification of phosphogypsum waste by flotation …
Search ScienceDirect. Journal of Molecular Liquids. Volume 411, 1 October 2024, 125736. ... This study used a photosensitive azobenzene-based surfactant to separate quartz from PG by reverse flotation, resulting in the complete removal of organics and slime during the flotation process. Micro-flotation tests were conducted to investigate the ...
Amine-coated nanobubbles-assisted flotation of fine and …
This study underscores the significance of multi-sized bubbles in flotation processes, demonstrating that collector-coated NBs efficiently attach to quartz surfaces, acting as "seeds" …
Synthesis and application of dithiocarbamate oxadiazole
The flotation recovery of malachite increased from 63% to 77% with the stirring time from 5 to 15 min. When the stirring time continued to increase, the malachite flotation recovery exhibited an insignificant change. In addition, the flotation recovery of quartz and calcite were not significantly changed with the increase of contact time.
The effect of amine type, pH, and size range in the flotation of quartz
Klimpel (1988) claimed that high collector dosages are required for the economical flotation of coarse particles, but alerted that excessive dosages may cause deleterious effects in the flotation system. Fundamental studies, performed by Crawford and Ralston (1988) in a modified Hallimond tube, with quartz particles in the size range 15–125 μm, indicated that 71 μm particles …
The surface features of lead activation in amyl xanthate flotation …
1. Introduction. Due to the excellent characteristics quartz is widely used in the production of glass, ceramic, refractory material, and optical communication (Ding, 2010).As one of the most abundant minerals in the earth's crust, quartz frequently associates with other minerals, such as feldspar, talc, pyrite, hematite, smithsonite, and apatite (Zhou, 2013).
Non-HF collectorless flotation of quartz
1. Introduction. Quartz is an important industrial mineral with various applications, and its flotation with anionic collectors when activated with cations, or with cationic collectors, have been well-known for quite some time (Glover, 1928, Wark, 1936).More recently it have been shown that quartz can be easily floated, without the use of collectors, in a solution of HF and …
New perspectives in iron ore flotation: Use of
The reverse flotation of the iron ore with etheramine collector is significantly impacted when the iron-bearing silicates and the kaolinite are present in the silicates gangue mineral complex. This paper aims to propose a new amidoamine collector N-[3-(Dimethylamino)propyl]dodecanamide for iron ore reverse flotation with a potential of …
The role of depressant pectin in the flotation
The experiment can be categorized as either single-mineral flotation or mixed-mineral flotation (spodumene + quartz), where the mixed ores were mixed according to the 1:1 ratio of mineral quality. For the flotation experiment, mineral particles (2 g each time) and 48 ml of distilled water were taken, added to the flotation cell, and then ...
Flotation of quartz using imidazole ionic liquid
Wash the treated quartz with ultrapure water several times until it was neutral, and dry it thoroughly in drying oven. High-purity hematite comes from South Africa. The sample was grounded to below 106um using a ball mill. A. Flotation study. The results of pure quartz flotation using ILs as collectors and DDA are shown in Fig. 1.
Flotation of quartz using ionic liquid collectors with …
The quartz samples assaying 98.3% SiO 2 used for the flotation studies were handpicked from Kalahandi, Odisha (India). The samples were crushed and ground to below 100 μm and further treated with dilute hydrochloric acid to remove any contaminated iron.The sample was washed several times with distilled water and dried prior to using it in the flotation studies.
Insights into the influence of temperature on the
As the main rock-forming mineral, quartz (SiO 2) is widely distributed on Earth and extensively investigated in mineral processing because of its associated characteristics with a variety of minerals, including silicates [1], oxides [2], and salt minerals [3], [4].For the efficient development and utilization of mineral resources, froth flotation, which is based on the …
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 …
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 …
Tannin: An eco-friendly depressant for the green flotation separation
TA depressed more than 90% of hematite particles under these conditions and less than 8% of quartz particles. Mixture micro-flotation results also depicted that hematite could selectively separate from quartz, where only in one stage flotation, a concentrate with 66.6% Fe grade and 87.7% iron recovery could be achieved.
Investigation of the flotation behavior and interaction
For quartz, the flotation recovery of all three particle sizes initially increases and then decreases. It can be observed that under the DDA flotation system, the pH range with higher flotation recovery for magnesite and quartz is 6–12, while the flotation performance of both minerals is poor within the pH range of 2–6.
Flotation of fine particles in the presence of combined …
In this paper, the effect of microbubble addition, on the recovery of fine quartz particles floated with conventional bubbles is discussed. Microbubbles stabilised by collectors were produced …
Non-polar oil assisted DDA flotation of quartz II
It is well accepted that non-polar oils can be used as collector extender in oil agglomeration flotation of many different types of mineral. In this paper, in order to study the influences of oil structures on the non-polar oil assisted dodecylamine (DDA) flotation of quartz, the research focuses on the interaction of DDA (collector) and non-polar oil (collector …
Effects of nanobubble and hydrodynamic parameters on coarse quartz
In the absence of NBs (Fig. 3), the maximum flotation recovery of quartz particles, 86.4%, was obtained at Re = 81,000 (air flow rate of 30 L/h) and flotation recovery decreased slowly for the more turbulent, Re > 81,000, and quiescent, Re < 81,000, condition. In other words, when the Reynolds number was lower than 81,000, the recovery was ...
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, fourier …
Synthesis and utilization of an amidoxime surfactant as
The maximum recovery rate of azurite with PEBH was found to be 95 %, while that of quartz and calcite was only 6 % and 18.5 %, respectively. Therefore, the optimal pH for azurite flotation using amidoxime surfactant PEBH is 11, while the optimal pH for quartz and calcite flotation is 6.5 and 8. Download: Download high-res image (226KB)
Adsorption behavior of mixed cationic/anionic
The flotation recovery of quartz increases with surfactant concentration. The DDA alone possesses better collection abilities than mixed DDA/NaOL surfactants, e.g., at 3 × 10 − 4 mol/L. The flotation recovery of quartz is approximately 98.35% for DDA alone, whereas it is only approximately 10.02% for mixed surfactants.
Diamine flotation of quartz
The flotation of Quartz was studied as a function of pH when using N-alkyl-1, 3 diaminopropanes and n-dodecylamine as collectors. The alkyl chains of the diamines were 8, 12 and 16 carbons in length.
Removal of fine quartz from coal-series kaolin by flotation
Stronger flotation of quartz was observed in alkaline and neutral medium in comparison to acidic medium, since the surface charge of oxides grows more negative as pH increases (Smith and Scott, 1990). Single mineral flotation results for quartz shown in Fig. 8 are in agreement with the investigation by Vidyadhar et al. (2014). Flotation ...
Activation mechanisms of quartz flotation with calcium
The flotation of quartz with NaOL as collector could be effectively activated by calcium ion only at strongly basic pH, while the recovery of quartz with cationic/anionic mixed …
New perspectives in iron ore flotation: Use of
Search ScienceDirect. Minerals Engineering. Volume 170, 15 August 2021, 107004. ... Studies performed on the flotation of quartz with etheramines as collectors showed the efficient depression of iron oxides by starch molecules from different sources (such as …
The effect of an external magnetic field on cationic flotation …
Search ScienceDirect. Minerals Engineering. Volume 23, Issue 10, September 2010, Pages 813-818. ... Reverse cationic flotation of quartz is very effective for the beneficiation of iron ores to produce high grade iron ore concentrates. In this process, quartz as a main gangue mineral is floated with cationic collectors. ...