In this study, the effects of ultrasound on removal of impurities from raw feldspar were investigated by testing with a newly developed flotation cell with various frequency and power intensities prior to multistage feldspar flotation. Particularly, the quality of feldspar concentrates, the volume of removed slimes and the content of impurities were taken into account to reveal the impacts.
Metallurgical Content. 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. Dry recovery …
A separation process is provided for treating a feed material comprising silica, feldspar, and metal impurities, including at least one of mica, iron impurities, or refractory heavy minerals, to form one or more products for use in making glass. In the process, the feed material is floated in the presence of a depressant to inhibit the flotation of feldspar and thereby form a concentrate ...
If the cleaner flotation were to be carried out, feldspar concentrate grade could be improved by 5-9 percentage points at the cost of 1-2 percentage points recovery, due mainly to dropping off of entrapped quartz particles.
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 used were polyoxyethyl cethyl ether (PECE) and polyethylene glycol monocethyl ether (PGME). The flotation behaviour of quartz and microcline with PECE and ...
A froth flotation process is used for most feldspar ore beneficiation. Figure 11.27-1 shows a process flow diagram of the flotation process. The ore is crushed by primary and secondary crushers and ground by jaw crushers, cone crushers, and rod mills until it is reduced to less than 841 µm (20 mesh). Then the ore passes to a three-stage, acid ...
The flotation behaviour of quartz and Katayanagi, A, 1973. A new feldspar flotation process without hydrofluoric acid, Ceramics Japan, 8:58-61. microcline with PECE and PGME has been studied. Each Malghan, S G, 1981. Effect of process variables in feldspar flotation using surfactant was a good selective collector for quartz with recovery non ...
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 ...
Milled feldspar is a naturally occurring mineral with properties that make it an exceptional functional filler and extender in a wide range of ceramic and industrial applications. Minspar, the QUARTZ Corp's high purity feldspar products, are widely used in paints and coatings, adhesives, caulks, and sealants, plastics and elastomers, engineered stone, ceramics, glass, and abrasives Read More...
Flotation Circuits. Flotation circuits are typically comprised of rougher, scavenger and cleaner flotation banks. Rougher and scavenger banks are focused on recovery and thus provide maximum residence time. Rougher banks can be large with the number of cells being 5 or greater. Scavenger cells are the last line of defense for avoiding losses.
A separation process is provided for treating a feed material comprising silica, feldspar, and metal impurities, including at least one of mica, iron impurities, or refractory heavy minerals, to form one or more products for use in making glass. In the process, the feed material is floated in the presence of a depressant to inhibit the flotation of feldspar and thereby form a concentrate ...
Stratikova (1968) conducted differential flotation of Na-K feldspars by fluoride activation in the presence 15 g/l NaCl and found an increase in the potassium content of the feldspar concentrate. Revnivtzev et al. (1968) reported that while potassium and those ions with similar radii e.g., Rb, Cs and Ba depressed the potassium feldspar, Na ...
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 spectroscopy, attenuated total reflection flourier transformed infrared spectroscopy (ATR-FTIR), scanning electron microscope (SEM), X-ray photoelectron spectroscopy (XPS) and bench scale flotation.
work, flotation tests for three pure minerals (i.e., spodumene, quartz and feldspar) and a real spodumene ore were carried out at laboratory scale. The results showed that YOA, a mixture of oleic acid and dodecylamine with the molar ration of 10:1, could be used as collector to produce a
The MAC flotation cell is mainly used in the flotation section of waste paper deinking pulping, for removal of hydrophobic impurities such as filler, ash, ink particles, etc. It can increase pulp whiteness and meet the requirements of final paper appearance quality. Table 11.11 shows the features of MAC flotation cell.
keywords: feldspar, separation, flotation 1. Introduction Feldspar is an important industrial raw material used in ceramic, porcelain and glass industries. Sixty percent of the World feldspar production is used in ceramic industry, 35% is used in glass industry, and 5% is used in welding electrode, rubber,
The froth flotation results show that the flotation recovery of quartz is 97.79% and that of FQA is 19.30% at pH 9.00–9.50 with 10−4 M PEA when the particle size ranges from 150 to 270 μm. The results of batch flotation, ICP-OES and XRD analyses show that the first flotation product is almost quartz, while more feldspar and little quartz ...
The tailings from this cleaner flotation, usually low in weight but containing much feldspar, and the second feldspar floats from the parallel parts of the test were combined for cleaning by the same method as for the first floats.
flotation feldspar carbon atoms sulfonate medium Prior art date Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.) Expired - Lifetime Application number US00232280A Inventor A Katayanagi Original ...
Various minerals such as quartz, feldspar, calcite, barite, potash, fluorspar phosphate, and others are extracted using the froth flotation method. As froth flotation chemicals play a significant role in mining, extraction, and processing of these metal and mineral ores, expansion of the mining industry will accelerate the market growth.
The cleaner feldspar concentrate was then collected as the final product from the last flotation cell whereas the depressed free silica was sent to dump. Continuous pilot plant runs were carried out with both feldspar samples at a feed rate of 200 kg/h with close control of all parameters.
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.
Previously, a selective flotation separation of feldspar in the presence of HF was proposed by Fuerstenau et al. [] in an acidic environment (pH = 2.1).It was suggested that the HF method can achieve a good separation of feldspar and quartz with a high grade of feldspar and a high-quality quartz [].However, there is a large amount of chemical activator (HF or NaF) in the flotation system, as ...
Cleaner flotation tailings is an intermediate product and is recycled within the flotation circuit. Many ores contain multiple valuable minerals that can be floated into separate concentrates. Examples would include a lead-zinc ore, in which the lead and zinc minerals are …
- 3. The conditioned pulp was then delivered to the last two flotation cell units, for direct flotation of feldspar after the addition of the amine cationic collector at a rate of 0.3 kg/t in the The cleaner feldspar rougher cell. concentrate was then collected as the final product from the last flotation cell whereas the depressed free silica
Feldspar Flotation Recycling Comprehensive utilization ... 626 J. Tian et al. / Journal of Cleaner Production 174 (2018) 625e633. desired amount of reagents, the suspension was stirred for 3 min,
However, flotation experiments show that the maximum actual yield of clean coal first increases and then decreases on increasing the grinding time from 3.5 min to 15 min. Approximately 50% clean ...
The rougher flotation and cleaner flotation stages were performed at pH >8.4 with stage-addition of A-60 collector. The results indicate that over 55% silica yield was achieved in the rougher flotation stage. The cleaner flotation grade was only 1.53% Al 2 O 3 at a yield of 24.4%. Based on visual observations the product yield could be enhanced ...
2D image of clean feldspar (a), figure of cross-section height of clean feldspar (b), 3D image of clean feldspar (c), 2D image of feldspar reacted with flotation reagents (d), figure of cross-section height of feldspar reacted with flotation reagents (e), 3D image of feldspar reacted with flotation reagents (f).
In this study, recovery of feldspar from trachyte by flotation was studied. A feldspar concentrate containing 5.72% K2O, 5.33% Na2O, 0.321% Fe2O3 and 0.080% TiO2 was obtained from a feed ...
Figure 7. Grade-recovery curve of the Gonçalo lepidolite froth flotation. Similarly to what occurred with spodumene, it was not possible to obtain concentrates with Li 2 O grades close to the Gonçalo lepidolite Li 2 O content (5.58 % Li 2 O [31]), even after the cleaning stage, having been 4.50 % Li 2 O the maximum value achieved. The shape of the grade-recovery curve indicates that the ...
A considerable progress in feldspar flotation has been the advancement of mixed collectors. Vidyadhar (Vidyadhar and Rao, ... The desired specification was reached after three cleaner stages ...
As a flotation cleaner final copper grades were 32% Cu without the need of a regrinding process. With lead-zinc ores, concentrate grade was 13% greater than those obtained in the conventional column. Corresponding values for fluorite and gold were 4% and 50% respectively.
Flotation tests comprised reverse flotation (flotation cell CFB-1000 EEPN from CDC) of iron-bearing minerals with anionic collectors since those minerals are present in lower content compared to feldspars . The flotation experiments started by mixing 400 g …
The results indicated that lower BaCl 2 concentration can increase the floatability of K-feldspar, whereas higher BaCl 2 concentration can significantly inhibit the flotation of K-feldspar. Peaks at 3548.18, 3475.56 and 3414.35 cm -1 in the FTIR spectra of K-feldspar adsorbed by dodecyl amine chloride revealed three forms of —OH.
