Activation mechanisms of quartz flotation with calcium ions …
Micro-flotation results indicated that 81.60% quartz was floated with both 5 × 10 −4 mol/L of CaCl 2, 2.5 × 10 −4 mol/L of NaOL and 3.0 × 10 −5 mol/L of DDA at pH 9.0, however, less than 10% of quartz was recovered without adding Ca 2+ or only using CaCl 2 and NaOL. AFM imaging revealed that Ca 2+ could adsorb on quartz in patches, which …
Flotation Behavior, Collector Adsorption Mechanism of Quartz …
Flotation is the most effective way to separate quartz and feldspar, but conventional flotation is usually achieved under acidic or alkaline conditions, which causes pollution to the environment.
Developing Effective Separation of Feldspar and Quartz …
The micro-flotation tests revealed that there was little difference in the flotation of feldspar and quartz at pH 2, using H2SO4 as pH regulator. After HF pretreatment, the floatability of feldspar significantly increased while the floatability of quartz showed no change. HF pretreatment resulted in leaching of SiO2 and enrichment …
Green and sustainable recovery of feldspar and quartz from …
This work explored a clean flotation process for separating mica, quartz-feldspar from granite tailings. For mica flotation, sodium carbonate (Na 2 CO 3) was used as pH adjuster, and sodium oleate/octanol with mass ratio 9/1 (NaOT) and dodecylamine (DDA) were used as mixed collectors.Subsequently, quartz-feldspar separation was …
Separation of feldspar from quartz using EDTA as modifier
Flotation responses of quartz and feldspar in 20 mg/l diamine solution (PDP) and as a function of various depressants (concentration: 5.10-4M). It can be seen in Figure 2 that it is evident the difference in floatability of minerals in the flotation cell in presence of EDTA and the best quartz feldspar separation are obtained at pH of around 2.
Minerals Research Lab Reports
"Flotation of Feldspar, Spodumene, Quartz, and Mica from Pegmatites in North Carolina, USA," Immo H. Redeker. MRL Report No. 77-3-P, published inErzmetall, December, 1977. Presented at 100 Years of Froth Flotation Meeting in Bad Harzburg, West Germany, March 24, 1977. 8 pages.
Flotation recovery of feldspar (a) and quartz (b) …
A study by Vidyadhar and Rao (2007) reported that microcline zeta potential was more negative than quartz in water for pH range of 1.5-11. On the other hand, the zeta potential of albite was ...
Adsorption mechanism of mixed cationic/anionic collectors in feldspar
Flotation is the most effective way to separate quartz and feldspar, but conventional flotation is usually achieved under acidic or alkaline conditions, which causes pollution to the environment.
Activation mechanisms of quartz flotation with calcium ions …
@article{Wang2021ActivationMO, title={Activation mechanisms of quartz flotation with calcium ions and cationic/anionic mixed collectors under alkalescent conditions}, author={Li Wang and Guodong Wang and Peng Ge and Wei Sun and Honghu Tang and Wenjihao Hu}, journal={Colloids and Surfaces A: Physicochemical and …
Flotation separation of feldspar from quartz using …
The physical and chemical properties of feldspar and quartz are highly similar, thus they cannot be easily separated effectively. In this work, the flotation …
Flotation of quartz from quartz-feldspar mixtures by …
Abstract. Flotation experiments performed on a quartz-feldspar mixture demonstrate that quartz can be floated selectively from feldspars in diluted solutions of …
[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. …
Systematic review of feldspar beneficiation and its …
Flotation separation of feldspar from quartz Feldspars are crystalline aluminosilicates with the general formula M 1+ /M 2+ (Al,Si) 4 O 8 . The feldspar …
The Use of Flotation and High-Intensity Magnetic …
Abstract The flotation process and magnetic separation are the most common methods for feldspar beneficiation containing approximately 0.4% Fe2O3 and 0.04% TiO2. A model MIH (13) 111-5 Induced Roll dry high-intensity magnetic separator was used in this investigation to produce high-quality feldspar concentrate, and …
Minerals | Free Full-Text | Efficient Recovery of Feldspar, Quartz…
The flotation tests demonstrated that the best process conditions for the flotation of iron-bearing minerals, such as mica, from quartz and feldspar are a pH of 8.3, a mixing ratio of NaOL/BHA/A CO of 3:1:0.05, and a dosage of 300 g/t.
Effects of metal ions on the flotation separation of spodumene from
Effects of Ca(II), Mg(II), Cu(II), and Fe(III) on the flotation separation of spodumene from feldspar and quartz were investigated.. Ca(II), Mg(II), and Cu(II) selectively improved the flotation of spodumene, whereas Fe(III) showed strong activation ability but low selectivity toward spodumene.. At a pH of approximately 7, Ca(II) and …
Adsorption Mechanisms of Activated Surface of Quartz and Feldspar …
Flotation separation of feldspar from quartz using sodium fluosilicate as a selective depressant. Xin Hu Xian-Ping Luo +4 authors Xue-Kun Tang. Materials Science, Chemistry. Rare Metals. 2024; Save. Removal of hydroxyl impurities in vein quartz by vacuum roasting. Songjiang Guo Guangtong Ai Junjie Zhao Shicong Yang Kuixain Wei …
Adsorption mechanism of mixed anionic/cationic
The flotation performances of muscovite and quartz had been studied using DDA, NaOL and mixed NaOL/DDA with various molar ratios. Fig. 1 shows flotation recoveries of muscovite and quartz as a function of pH in the presence of different collectors. It can be seen that with an increase of pH from 2 to 11, the recovery of …
Mechanism of Modified Ether Amine Agents in Petalite and Quartz …
To investigate the flotation separation behavior of petalite and quartz, various methods were employed in this study. These included micro-flotation experiments, a contact angle analysis, zeta potential analysis, Fourier transform infrared spectroscopy (FTIR), and X-ray photoelectron spectroscopy (XPS) to explore the separation …
Reverse flotation separation of quartz from phosphorite ore …
Primary aliphatic amines (R-NH 2) and quaternary ammonium salts (R-N(CH 3) 3) were successively introduced as quartz flotation collector at an early stage [9], ... 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 …
Selective flotation of quartz from feldspar using …
The K-feldspar flotation was performed in alkaline environment (pH 10.5–11.6) with only the addition of NaOH as a modifier and non-ionic Brij58 as a frother, on a fluorine-amine activated bulk ...
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, …
Flotation of quartz from quartz-feldspar mixtures by the …
For example, to realize the successful flotation separation of feldspar from quartz, a cationic collector and hydrofluoric acid (HF) were used traditionally as an activator in highly acidic ...
The comparison of non-hydrofluoric acid flotation
With feldspar the entrained free quartz was first removed by additional selective flotation (without and with surface preparation) after which a combination of acid leach and magnetic separation ...
A new and effective method for quartz-feldspar
Conclusion. In this study, a methodology for separating quartz was developed and tested on sediment and rock samples from the Himalaya. Method was able to extract pure quartz (95-96%) from the sediment and rock samples. SEM image analysis shows that proposed method was able to bring down feldspar content to ~ 4-5%.
Utilization of aromatic hydroxamates with different carbon …
The flotation results indicate that the performance of AHA for quartz flotation is poor, with a recovery below 10% at pH 3–11. The dominance of Si species on the mineral surface suggests that the flotation behavior of …
Review of flotation of feldspar | Semantic Scholar
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, mica, ilmenite, rutile, anatase and magnetite) as well as the separation of the individual feldspar minerals themselves. Much of the published information on feldspar flotation relates to …
Selective flotation separation of spodumene from feldspar …
Thus, methods for the successful separation of lithium-bearing mineral phases from gangue minerals (such as quartz and feldspar) are urgently required. ... Considering that metal ions, such as Si 4+ and Al 3+, are abundant in the spodumene–feldspar flotation system, SA is a potential depressant for this system. However, there are no …
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.. …
Selective flotation of quartz from feldspar using …
Abstract. Feldspar and quartz are similar in composition and structure, and hence, they exhibit low flotation separation efficiency in acid or alkaline conditions and …