Selective flotation of quartz from feldspar using …
The flotation recoveries of quartz and feldspar as a function of pulp pH with 5.5 × 10-4 mol/L MgCl 2 activator and 1.5 × 10-4 mol/L NaOL collector, are presented in Fig. 5a. Both recoveries of quartz and feldspar increased as the pulp pH increased, and reached a maximum value around pulp pH of 10.5–11.5.
Flotation results of artificial mixture of feldspar and quartz …
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 ...
Activation mechanisms of quartz flotation with calcium ions …
The flotation behavior and adsorption mechanism of a new cationic collector on the separation of spodumene from feldspar and quartz Ruiqi Xie Yimin Zhu Jie Liu Yan-jun Li Materials Science, Chemistry
Flotation recovery of feldspar (a) and quartz (b) as a …
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 ...
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 ...
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, …
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 …
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.. …
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.
Selective flotation of quartz from feldspar using …
DOI: 10.1016/j.mineng.2023.108022 Corpus ID: 257148498; Selective flotation of quartz from feldspar using hydroxypropyl starch as depressant @article{Sun2023SelectiveFO, title={Selective flotation of quartz from feldspar using hydroxypropyl starch as depressant}, author={Ning Sun and Guodong Wang and Peng Ge and Weipeng Sun and …
Flotation and adsorption of quartz with the new collector …
A new surfactant butane-3-heptyloxy-1,2-diamine [CH3(CH2)6OCH(CH3)CH(NH2)CH2NH2; BHLD] was synthesized. It has been innovatively used as a collector in the flotation of quartz. In this present study, the flotation behaviors of quartz with BHLD were investigated by micro-flotation of quartz. It was found that the …
Adsorption mechanism of mixed cationic/anionic collectors in feldspar
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 …
Synergistic effect and co-adsorption mechanism of a
Flotation is the most efficient and widely used method for separating feldspar from spodumene [6]. Spodumene and feldspar are both aluminum-containing minerals, the surface chemical properties of the two minerals are similar, and their surface active sites are mainly Al 3+ [7]. When fatty acid collectors are used, the two minerals …
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 …
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 …
Mechanism of Modified Ether Amine Agents in …
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 …
Selective flotation of quartz from feldspar using …
Feldspar and quartz are similar in composition and structure, and hence, they exhibit low flotation separation efficiency in acid or alkaline conditions and while using the traditional reagents scheme. In this study, hydroxypropyl starch (HPS) was introduced as a novel depressant in the flotation separation of quartz from feldspar. Magnesium chloride …
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 ...
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 …
Selective flotation of quartz from feldspar using …
The flotation recoveries of quartz and feldspar as a function of pulp pH with 5.5 × 10-4 mol/L MgCl 2 activator and 1.5 × 10-4 mol/L NaOL collector, are presented in …
THE ROLE OF ALKALINE EARTH CATIONS IN FLOTATION SEPARATION OF QUARTZ
Keywords Quartz, feldspar, flotation, alkylsulfonates, 1-dodecanol, activation, alkaline earth metals INTRODUCTION The recovery of industrial minerals from the various ore deposits has attracted increasing interest in recent years in all the world. Among the minerals considered interesting in this respect are feldspar and quartz.
A Comparative Study of Quartz and Potassium …
Nowadays, the most efficient process for Kfs flotation from quartz applies amine as a collector in acidic conditions produced by HF acid [ 14, 15 ]. Feldspar is …
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.
Atomic insight into the activation mechanism of feldspar by …
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 …
Effects of metal ions on the flotation separation of …
As shown in Table 5, it was easier for C 12 H 22 BrO 2-, Ca 2+, and Mg 2+ to adsorb on spodumene than on feldspar and quartz; therefore, Ca(II) and Mg(II) facilitated the flotation separation of spodumene from feldspar and quartz. However, the adsorption of Fe(III) and Cu(II) on the three minerals was complex.
Feldspar Beneficiation & Flotation Process
Beneficiation by Flotation of feldspar is well established. It is a simple matter by flotation to remove the contaminating impurities and keep the alumina (Al2O3) content at 19% even on low grade feldspar ores. ... The flowsheet illustrated is typical for the average feldspar ore containing quartz, mica, garnet and other iron bearing silicates ...
Selective flotation of quartz and feldspar using non-ionic surfactant
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% ...
Research Progress in Flotation Separation of Quartz and Feldspar …
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, …
New insights into the oleate flotation response of feldspar …
1. Introduction. As one of the most abundant minerals in the earth's crust, feldspar is commonly associated with other silicate minerals in pegmatitic and feldspathic sand deposits, such as quartz (SiO 2), spodumene (LiAl[Si 2 O 6]) and mica (KAl 2 [AlSi 3 O 10](OH) 2) [1], [2].Although feldspar is generally considered as a gangue mineral that …
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 …
