feldspar flotation quartz

ABSTRACT In order to develop the HF-free flotation reagent system, the main objective of this investigation was to study the possibility of separation of quartz from feldspar using non-ionic surfactants as the collector. The non-ionic surfactants

"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.

Our flotation cell, which has a volume of 600 cm 3, is built of borosilicate glass, holds up to 90 g of sample, and achieves quartz and feldspar separation in ≤2 h for very feldspar …

Abstract. Feldspar and quartz are similar in composition and structure, and hence, they exhibit low flotation separation efficiency in acid or alkaline conditions and …

In this paper, the flotation separation of quartz and feldspar was studied with CaCl 2 as activators and mixed sodium oleate/ dodecylamine (NaOL/DDA) collectors under alkaline condition, and the action mechanism of mixed NaOL/DDA collectors on the quartz and feldspar surfaces were systematically explored. The results of micro …

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.. …

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 …

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 ...

In laboratory scale flotation experiments, when quartz is the main gangue mineral, the TiO2 grade and recovery of flotation concentrate improved from 27.1% to 28.3% and 85.3% to 92.7% ...

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 ...

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.

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 …

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. …

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 …

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 …

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 feldspar concentrate from the preceding feldspar-quartz separation. The K-feldspar flotation resulted in a K-feldspar concentrate of 14.3% K 2 …

A Comparative Study of Quartz and Potassium Feldspar Flotation Process Using Different Chemical Reagents. 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….

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.

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 …

The role of surface silanol groups in flotation separation of quartz from feldspar, in Proceedings XVIII IMPC, Sydney, pp 845-849. El Salmawy, M S and Wakamatsu, T, 1999. Amine flotation of quartz and feldspar, in Proceedings Sixth International Conference on Mining Petroleum and Metallurgy, Cairo, Egypt, pp 92-98. Fukushima, S and Kumagai, S ...

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, …

Furthermore, the quality of feldspar and quartz sand was satisfactory regardless of which reagent was used. For flotation of impurities in the reverse flotation of quartz sand from raw material "Ub", with collector Aero 3030C, better results were obtained than with a combination of collectors R 825 and Armac C.

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, …

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 at pH ⩽ 2 with quartz exhibiting an iep at pH 2 and microcline charged negatively down to pH 1.5 is found to be the key factor for the preferential …

Flotation experiments performed on a quartz-feldspar mixture demonstrate that quartz can be floated selectively from feldspars in diluted solutions of hydrofluoric …

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 ...

The effect of hydrofluoric acid (HF) pretreatment on flotation of feldspar and quartz using dodecylamine (DDA) as collector was investigated by micro-flotation, zeta potential, pyrene fluorescence ...

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 ...

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 …

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.

@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 …