Synthesis of a novel hydroxyl quaternary ammonium
A novel quaternary ammonium hydroxyl salt collector dodecyl hydroxyethyl dimethyl ammonium bromide (DHDAB) was synthesized and characterized in the laboratory. The influence and action mechanism of DHDAB on the flotation behavior of hematite and quartz were studied by micro-flotation test and a series of mechanism …
Influence of hexylamine on kinetics of flotation and bubble attachment
In this work flotation and single bubble tests were conducted with high purity quartz in water and hexylamine solutions at different pHs. It was found that flotation kinetics and time of the three-phase contact (TPC) formation (t TPC) at the quartz surface by the colliding bubble were affected by the hexylamine concentration and the solution …
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 …
New perspectives in iron ore flotation: Use of collector …
@article{Silva2021NewPI, title={New perspectives in iron ore flotation: Use of collector reagents without depressants in reverse cationic flotation of quartz}, author={Klaydison Carlaile Silva and Lev O. Filippov and Alexandre Piçarra and Inna V. Flilippova and Neymayer Lima and A. G. Skliar and Livia Marques Faustino and …
Molecules | Free Full-Text | Effects of Hydrogen Bonds …
Hydrogen bonds play an important role in the interaction between surfactants. In this study, the effect of three different ethoxylated alcohols (OP-10, NP-10, AEO-9) on the collecting behavior of sodium oleate (NaOL) in the flotation of quartz was investigated. To explore the mechanism, the hydrogen bond between ethoxylated …
Reverse froth flotation separation of limonite and quartz …
In this paper, a cationic gemini surfactant ethane-1,2-dodecyldimethylammonium bromide (EDDA) was synthesized and used as a novel collector for the reverse froth flotation of limonite and quartz. According to the pure mineral flotation results, EDDA has good floatation ability and selectivity to quartz over the …
Effects of Al(III) Ions at Magnetite Flotation from …
The flotation separation of magnetite and quartz is a long-term challenge for the beneficiation industry. For high-quartz magnetite, conventional flotation shows poor separation effect, resulting in the …
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.. …
Reverse anionic flotation of quartz from Muro iron ore
The recovery of iron from low-grade (31.6% Fe) Muro iron ore was investigated using reverse anionic flotation of quartz. Tests were performed to investigate the effect of pH, the effects of using distilled vs. tap water as the flotation medium and the effects of using cassava starch vs. dextrin for the depression of iron minerals.The optimum results were …
flotation quartz actions
The flotation separation of magnetite and quartz is a longterm challenge for the beneficiation industry For highquartz magnetite, conventional flotation shows poor separation effect, resulting in the waste of resources and low flotation efficiency In this paper, dodecylamine acts as a collector and Al(III) ions in water act as a depressant to ...
New perspectives in iron ore flotation: Use of collector …
The affinity between the ultrafine kaolinite of the slimes with the corn starch is harmful to the reverse flotation of quartz, as the starch has an important depressing action over the hematite ...
Effect of metal ions on the flotation separation of biotite from quartz …
DOI: 10.1016/j.ces.2023.119184 Corpus ID: 261001574; Effect of metal ions on the flotation separation of biotite from quartz using mixed anionic/cationic collectors @article{Liu2023EffectOM, title={Effect of metal ions on the flotation separation of biotite from quartz using mixed anionic/cationic collectors}, author={Yan Liu and Rui Xu and …
Effects of nanobubble and hydrodynamic parameters on coarse quartz
Coarse quartz flotation has been a long standing problem in various mineral processing plants to reduce milling cost and increase valuable mineral recovery. Based on this, the effects of nanobubbles (NBs) and hydrodynamic parameters on coarse quartz particle flotation were systematically investigated.
Effects of Al(III) Ions at Magnetite Flotation from Quartz by
The flotation separation of magnetite and quartz is a long-term challenge for the beneficiation industry. For high-quartz magnetite, conventional flotation shows poor separation effect, resulting ...
Contribution on fluid inclusion abundance to activation …
The results demonstrated that it was more likely for quartz with higher fluid inclusion abundance to connect with Fe3+ sufficiently to achieve a high level of flotation …
Feldspar flotation as a quartz-purification method in …
Introducing flotation to the sample preparation procedure ensures quartz enrichment and mitigates problems related to contaminations with other mineral phases in 10 Be and 26 Al cosmogenic nuclide dating. Our flotation cell is built of borosilicate glass, is designed for up to 90 g of sample material with grain sizes between 250–1000 μm, and ...
A Comparative Study of Quartz and Potassium Feldspar …
An improved method for producing high-purity quartz (Qtz) and potassium feldspar (Kfs) concentrates was developed using various chemical reagents. Froth …
Insight into anionic and cationic flotation discrepancy of …
Specifically, the flotation behavior and flotation kinetics of quartz with two different roughness values altered by acid etching were investigated under the …
Contribution on fluid inclusion abundance to activation …
abundance was investigated, revealing the influence of fluid inclusions on the flotation behavior of quartz. 2. Experimental 2.1 Materials and chemicals Hand-picked natural pure specimens of two types of α-quartz with different fluid inclusions, labeled as 1 # and 2, were obtained from Anhui province in China. The samples were ground via a ...
Flotation of quartz from quartz-feldspar mixtures by the …
Flotation experiments performed on a quartz-feldspar mixture demonstrate that quartz can be floated selectively from feldspars in diluted solutions of hydrofluoric acid (HF) simply by the aid of a frother. High grades and good recoveries were obtained for both quartz and feldspars. A feldspar concentrate of 99.9% at a recovery of 95.6% was ...
Utilization of Phytic Acid as a Selective Depressant for Quartz
It is difficult to separate smithsonite from quartz with metal ion activation through flotation using sodium oleate (NaOL) as the collector. The inevitable Zn 2+ in the flotation process of zinc oxide ore makes the separation of smithsonite and quartz more difficult. Thus, this study investigated the use of phytic acid (PA) as a flotation depressant to separate …
Flotation separation of feldspar from quartz using sodium
Neutral flotation and acid flotation are quartz reverse flotation methods, and the froth product obtained from flotation is feldspar concentrate . Alkaline and neutral …
Effect of ultrasound on bubble-particle interaction in quartz …
In this study, the effect of ultrasound (US) on the quartz-amine flotation system was investigated in detail by considering various surface chemistry techniques. The effect of ultrasound on particle size, shape factor, and surface roughness were characterized by using Brunauer-Emmett-Teller (BET) surface area measurements and scanning electron ...
Research Progress in Flotation Separation of Quartz and …
Quartz is often symbiotic with feldspar silicate minerals, which is difficult to separate and purify because of their similar physical and chemical properties. Flotation is the most effective method for the separation of quartz and feldspar. The main flotation methods for the separation of quartz and feldspar, such as hydrofluoric acid method, …
The separation of kyanite from quartz by flotation at acidic pH
Flotation tests were conducted by using kyanite and quartz single minerals. The effect of pH on the flotation recovery when using 3.0 × 10 −4 mol L −1 sodium petroleum sulfonate (SPS) as the collector is shown in Fig. 1.Kyanite recovery increased significantly with pH and reached a maximum of 58% at pH 4 and then started to decrease.
(PDF) Effects of temperature during ultrasonic …
quartz-DAH flotation. The results showed that temperature of the suspension sharply increased from 23. up to 75 °C at the end of 10 min of co nditioning at 150 W ultrasonic power. The flotation ...
The surface features of lead activation in amyl xanthate flotation …
Quartz is also a typical gangue mineral in many flotation systems such as beryl (Fuerstenau et al., 1965b), sphalerite (Duarte and Grano, 2007), and other sulfide minerals. Although quartz possesses hydrophilic surface properties in nature and cannot be floated by anionic surfactants alone at any pH, hydrophobicity can be induced by adding ...
Froth Flotation of Chalcopyrite/Pyrite Ore: A Critical Review
Chalcopyrite and pyrite show recovery of over 90% when working with SBX and MIBC at pH 4–10. An increase in pH to 11.5 allowed lowering the pyrite recovery to 63%. However, when using PCA, pyrite flotation was significantly reduced at pH 4–8, while chalcopyrite was slightly affected, with recoveries over 90%.
Activation mechanisms of quartz flotation with calcium ions …
In general, the flotation of quartz has two common methods: cationic flotation using fatty amines, quaternary ammonium salts, ether amines, etc., and flotation with metal ions activation and using anionic collectors, such as sodium oleate, sodium …
Coordination reaction triggered xanthan gum and Fe(III) self …
The cation reverse flotation is a widely used method in improving the grade of iron ore concentrate, but hematite depressant is the key. In this work, the flotation behavior of hematite and quartz using the complex of Fe(III) and xanthan gum (Fe(III)-XG) as depressant was investigated via micro-flotation tests.