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The micro-flotation tests revealed that there was little difference in the flotation of feldspar and quartz at pH 2, using H 2 SO 4 as pH regulator. After HF pretreatment, the floatability of feldspar …
Feldspar
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Effects of bivalent salts on the flotation separation of Na-feldspar
Abstract Flotation is the only technique that enables the selective separation of Na and K feldspar minerals from each other. In this study, the flotation separation of Na-feldspar (albite) and K ...
Synergistic effect and co-adsorption mechanism of a
Pure samples of spodumene and feldspar were purchased from Yichun, Jiangxi Province, China. The two samples were crushed and ground using a porcelain mill and then dry-sieved to obtain the maximum amount of –74 + 38 µm size fraction. ... the positive influence of the mixed collector NaOL/CTAB on flotation separation process,a …
Efficient Recycling of High-grade Concentrate Powders from Feldspar …
Compared to coarse minerals, feldspar slime exhibits low flotation efficiency and selectivity due to its low mass, ... Analytically pure hydrochloric acid, supplied by Sinopharm Chemical Reagents Co. Ltd. was used as the leaching agent. Zirconia beads (NanorZr-93, Ø 0.6–0.8 mm), supplied by Guangzhou Pleased Grinding Media Co. Ltd. …
Maximizing resource use—modified starch aids in selective …
For this study, the researchers used HPS in combination with magnesium chloride as the activator* and sodium oleate as the collector. They conducted micro-flotation tests on pure quartz and feldspar samples as well as bench-scale flotation tests on granite tailings.
Solved An ore, consisting mixture of quartz and feldspar is
Question: An ore, consisting mixture of quartz and feldspar is to be separated by flotation of quartz. In this ore, all particles of quartz and feldspar are pure minerals; none of the grains are locked. The rate of flotation of feldspar is governed by a first-order rate process, with k being the rate constant.
A Comparative Study of Quartz and Potassium …
Abstract. An improved method for producing high-purity quartz (Qtz) and potassium feldspar (Kfs) concentrates was developed using various chemical reagents. …
Feldspar flotation as a quartz-purification method in …
After the froth flotation, these small amounts of feldspar will be dissolved during further chemical treatment, e.g., the first leaching cycle for the removal of atmospheric 10 Be by concentrated HF. Our cell has been successfully applied to obtain pure quartz and feldspar used in CN and OSL dating [20,23]. Samples of up to 90 g allow for good ...
Systematic review of feldspar beneficiation and its …
Intensified flotation of fine feldspar. Slimes in feldspar flotation (generally −38 μm size for feldspar mineral) have a negative effect on flotation by coating the …
Flotation Behavior, Collector Adsorption Mechanism of …
The mineral samples of feldspar-quartz associated ore (FQA) and pure quartz in this study were obtained from Sanming, Fujian province, China. Whether the samples are floated or ... terial was mixed with ultra-pure water in a 1500 mL flotation cell for 2 min. Then, 1500 μL 0.1 M cationic collector PEA solution was added into the slurry ...
Selective flotation of quartz from feldspar using …
These results indicated that HPS leaned towards complex formations with Al-sites on the surface of feldspar, thereby reducing the adsorption of NaOL and inhibiting …
Removal of dolomite and potassium feldspar from apatite …
Analytically pure DTAB and NaOL were used as collectors, H 3 PO 4 and NaOH as pH regulators, and H 3 PO 4 as an apatite inhibitor. The flotation tests were performed with deionised water (ρ=18.3 μs/cm). All reagents used in the experiments were obtained from the Aladdin Chemical Reagent Network, and were analytically pure.
Mechanisms for the selective separation of spodumene from feldspar …
The pure spodumene was obtained from Minas Gerais, Brazil. In addition, the pure feldspar was obtained from Shandong, China. The pure spodumene and feldspar samples were hand selected to remove impurities, crushed, ground, and passed through standard Taylor sieve series to obtain the samples of −74 + 38 μm for flotation testing.
Recovery Slime Waste from Feldspar Flotation Plant at …
The purpose of this research is to recover slime waste from feldspar flotation plant at Attanee International Co., Ltd., Tak province.Slime waste with particle size less than 230 mesh, is found ...
New insights into the oleate flotation response of feldspar particles
The flotation performance of spodumene and feldspar with four size ranges (0–19, 19–38, 38–45 and 45–75 μm) are investigated in single mineral micro-flotation tests.
Feldspar flotation as a quartz-purification method in …
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 …
Adsorption mechanism of mixed cationic/anionic collectors in feldspar
The pure crystalline microcline and quartz mineral samples purchased from Gregory, Bottley & Lloyd Ltd., UK were used in the investigations. ... 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 ...
The selective adsorption and flotation separation of …
Analytically pure OHA, SDS, and ferric chloride (FeCl 3. 6H 2 O) were. Flotation results analysis. Fig. 3 depicts the recovery differences between spodumene and feldspar treated with Fe-OHA or Fe-OHA-SDS under different conditions. Fig. 3(a) illustrates the recovery of spodumene and feldspar reduced with the enhanced ratio of …
In situ adsorption of mixed collectors BHA/DDA in spodumene-feldspar
It is notable that the differences in flotation recoveries are 63.74% and 53.92% at molar ratios of 6:1 and 8:1, respectively, showing a tendency of diminution with increasing BHA:DDA molar ratio. The flotation recoveries of spodumene and feldspar are 88.31% and 24.57% at pH 8–9, respectively, at BHA:DDA molar ratio of 6:1.
A Comparative Study of Quartz and Potassium Feldspar Flotation …
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 …
Effects of metal ions on the flotation separation of …
Pure spodumene, feldspar, and quartz were manually selected, crushed, ground, and wet-sieved to a size fraction of −74 + 38 μm. ... Moreover, the effects of these ions on the flotation of feldspar and quartz were different from those on the flotation of spodumene. Download : Download high-res image (447KB)
Amine–oleate interactions in feldspar flotation
Flotation tests show that the amine concentration ought to be kept lower than 1.47 × 10 −5 mol/l (≈5 ppm) to prevent feldspar loss during metal-oxides flotation stage and hence dewatering/washing operation after mica flotation seems to be a crucial step. Feldspar recovery in the concentrate, being 86.67% without dewatering/washing ...
Selective flotation of quartz and feldspar using non-ionic surfactant
A new flotation process separating feldspar from quartz was introduced and its principle was investigated. In this new flotation process, feldspar was floated from silica using n-alkyltrimethylene ...
Stage-wise flotation for the removal of colored minerals …
Flotation is the most popular method for removing these impurities in the size range of −250 to +38 μm.Very fine size particles known as slimes in flotation (for feldspar usually −38 μm size) represent large surface areas and result in excess collector consumption. Slimes are usually discarded before flotation as they adversely affect ...
Flotation separation of feldspar from quartz using …
The results of flotation tests on the pure minerals of feldspar and quartz and the flotation test results on actual minerals showed that the selective flotation …
Minerals | Free Full-Text | Developing Effective Separation of Feldspar …
Feldspar minerals (KAlSi 3 O 8, NaAlSi 3 O 8, CaAl 2 Si 2 O 8) are the most abundant of aluminosilicate rock forming minerals, comprising 60% of the earth's crust.They are widely applied in the production of glass, ceramics, and as fillers and extenders [1,2] in the paper and paint industries.In order to improve the purity or the whiteness of feldspar, …
Selective flotation separation of spodumene from feldspar …
Micro-flotations of pure spodumene and feldspar were performed on an XFG flotation machine (spindle speed 1602 r/min) with a 40 mL small cell volume. The experimental steps were as follows: 2 g pure minerals and 38 mL ultrapure water were first added to the flotation cell; after stirring for 1 min, dilute hydrochloric acid or sodium …
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 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 ...
