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, 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 ...
Effect of silicate bacteria on quartz flotation separation
ABSTRACT Taking quartz as the research object, the effect of silicate bacteria pretreatment on quartz flotation was investigated. After pretreating quartz for 3 days by using silicate bacteria, taking dodecylamine as the collector, the maximum recovery ratio of quartz was 92.74%. The quartz was transformed from insoluble crystalline form …
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 …
Investigations on the reverse cationic flotation separation of quartz …
Reverse flotation is the most commonly used in the flotation separation of hematite and silicate minerals such as quartz, and reverse flotation is a method in which gangue minerals are selected as products and target minerals are selected as in-tank products [10], [11].
Study on the influence of particle size on the flotation separation …
The influences of particle size on the flotation separation of kaolinite and quartz was explored by flotation tests of full-size and various sizes, zeta potential analysis. The flotation separation effects of kaolinite and quartz mixed minerals under different conditions were analyzed by calculating the characteristic parameters such as K, R ...
Flotation of copper oxide minerals: A review
Zhang et al. [73] achieved flotation separation of malachite from quartz using S-carboxymethyl-O, O'-dibutyl dithiophosphate as a copper oxide mineral collector (Fig. 5). Styryl phosphonate mono-isooctyl ester (SPE108) has a strong bonding ability with the malachite surface cations, and it is an efficient flotation collector for malachite ...
Separation of ultra-fine hematite and quartz particles using
The asynchronous flocculation flotation results confirmed that PEO was capable of enhancing the separation of ultra-fine hematite and quartz. In order to investigate the flocculation performance, sedimentation behaviors of quartz and hematite with different chemicals were studied and the results are shown in Fig. 6 .
Flotation separation of quartz from apatite and surface …
The higher flotation separation at pH 3 and below 1 × 10 −4 M of collector was caused by increase in the attractive force between the quartz particles and air bubbles, which was triggered by the collector adsorption. When the hydrophobic attractive force was applied to the extended DLVO theory, the analyses of interaction forces explained ...
Study on the influence of particle size on the flotation separation …
The influences of particle size on the flotation separation of kaolinite and quartz was explored by flotation tests of full-size and various sizes, zeta potential analysis. The flotation separation effects of kaolinite and quartz mixed minerals under different conditions were analyzed by calculating the characteristic parameters such as K, R ∞, …
Preconcentration strategies in the processing of nickel …
A number of feed preparation techniques ahead of flotation were attempted at laboratory scale on a sample of Ni laterite containing predominantly goethite and quartz. Flotation tests even on closely sized particles (38–75 μm) failed to yield significant Ni upgrades using the reagents tested in this study, based on those used commercially for ...
Polyethylene oxide assisted separation of molybdenite from quartz …
The flotation performances of molybdenite from quartz as a function of kerosene concentration were investigated. As shown in Fig. 2, the Mo recovery and grade increased gradually as kerosene concentration increased and decreased in the kerosene concentration of more than 200 mg/L.It should be noted that, for the micro-fine …
Effect of butanol on flotation separation of quartz from …
In order to investigate the effect of butanol on quartz flotation when N-dodecyl ethylenediamine (ND) was used as collector, single mineral flotation and artificial mixed mineral (hematite and quartz were mixed at a mass ratio of 3:2) separation were conducted in the laboratory.
Reverse flotation separation of quartz from phosphorite …
Quartz, the gangue of phosphorite ore, is challenging to be separated at low temperatures. In this work, an amine-typed Gemini surfactant, N,N'-bis(dodecyldimethyl)-1,4-butane dibromide (BBD) was recommended as an emerging collector for reverse flotation separation quartz from phosphorite ore.
Flotation separation of quartz from magnesite using …
However, those reagents were found to exhibit depression effect on the quartz flotation [12âˆ'16], which results in a growing demand for introducing a new environmentally friendly reagent to achieve efficient flotation separation of quartz and magnesite [17]. Carboxymethyl celloluse (CMC) is a naturally existing non-toxic chemical …
Selective flotation separation of spodumene and quartz …
The separation of spodumene and quartz is relatively difficult as they have similar physicochemical properties. To solve this problem, the role of carboxylate chitosan (CCS) in the separation of these two minerals using dodecylamine (DDA) as the collector was studied, and the depression mechanism was discussed through contact angle test, …
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 …
Towards a new process for the flotation of quartz
Flotation is an indispensible tool in the production of high purity quartz concentrates for such uses, as most of the contaminating minerals can be floated with …
Selective flotation separation of hemimorphite from quartz …
The flotation results showed that LS exerted high selectivity for hemimorphite, and flotation separation of hemimorphite from quartz was achieved at an LS concentration of 3.4 × 10 −4 mol/L and a pulp pH of 7. In contrast to sodium oleate (NaOL), LS exhibited a higher Gaudin's selectivity index (SI) of 67.58 under the optimal …
Exploring the effect of a polyacrylic acid-based grinding aid …
Mixed mineral flotation showed that by using AAG, Fe recovery of 92.1% and 64.5 % Fe grade could be achieved with a lower collector dosage of 100 g/t compared to 200 g/t in the absence of AAG.
Flotation separation of quartz and dolomite from …
Therefore, the flotation separation of dolomite and quartz from collophane can be achieved. Based on the adsorption behaviors of C12Giy, a possible adsorption model is shown in Fig. 18. Download : Download high-res image (148KB) Download : Download full-size image;
Effect of butanol on flotation separation of quartz from …
In this paper, a Gemini surfactant, ethane-1,2-bis(dimethyl-dodecyl-ammonium bromide) (EBAB), was introduced as a collector for reverse cationic flotation separation of quartz from magnetite, and ...
The role of depressant pectin in the flotation separation of …
Quartz is difficult to separate by flotation due to its similar surface physicochemical properties to spodumene. 2 mg/L pectin and 0.005 mol/L NaOL at pH 11 allowed mineral separation. Pectin is chemically adsorbed on spodumene through –COO– and Al sites on spodumene. Pectin pre-sorption interferes with the adsorption of NaOL …
The separation of kyanite from quartz by flotation at acidic …
The artificially mixed mineral separation results demonstrated that DNET could effectively separate hemimorphite from quartz. The flotation separation results showed that the grade and recovery of ...
The combined application of Na2SiO3 and Mn2+ enhancing the flotation
The best choice is the quartz sand mineral, which is available and commonly used. Kaolinite is a silica-oxygen compound considered as common impurity in quartz sand minerals. Many studies have been conducted on its separation from quartz by flotation. Quartz is a common associated impurity in minerals. It has been widely studied due to …
Simultaneous separation of quartz and dolomite from
A series of initial experiments carried out with magnesite, quartz and dolomite as a single mineral indicated that separation of magnesite from quartz and dolomite can be better at pH 8.0 (Liu et al., 2018, Liu et al., 2019;) and DDA 30 mg/L (Sun et al., 2021., Yao et al., 2016).Therefore, the flotation tests were performed to observe the floatability of …
Green hematite depression for reverse selective flotation separation
Flotation of mixed minerals (hematite and quartz mixture in various ratios) indicated that LGB could enhance separation efficiency (hematite recovery > 88%). Outcomes of the surface wettability indicated that even in the presence of the collector (dodecylamine), LBG decreased the hematite work of adhesion and had a slight effect on quartz.
The role of depressant pectin in the flotation separation of …
The binary mixed mineral flotation experiment of quartz and spodumene was carried out to verify the separation effect, and the results are shown in Table 2. From Table 2, spodumene and quartz can be separated using pectin as depressant at pH 11, and a concentrate with a Li 2 O grade of 6.78% and a recovery of 65.79% is achieved.
Flotation of quartz from quartz-feldspar mixtures by …
There is a high flotation separation selectivity between quartz and different types of feldspar. A feldspar concentrate of 99.9% at a recovery of >95% was produced. …
A Comparative Study of Quartz and Potassium …
This study demonstrates a high froth flotation separation selectivity between quartz and feldspar and that quartz can be readily floated in diluted HF …
Adsorption mechanism of mixed anionic/cationic
The flotation separation of muscovite from quartz was investigated using mixed sodium oleate/dodecylamine acetate (NaOL/DDA) collectors. The experiments were conducted on single minerals and on a mixture of minerals, and their collecting performances were studied by means of Fourier transform infrared (FTIR) spectroscopy, …