Dodecylamine collector—pH effect on mica flotation and correlation with thin aqueous film and surface force measurements. Int. J. Miner. ... mica was first floated by adding Na 2 CO 3 as pH adjuster and sodium oleate/octanol with mass ratio 9/1 (NaOT) and dodecylamine acetate as mixed collector. Then, the quartz-feldspar separation was ...Web
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collectors are the main cationic collectors used in spodumene flotation, and are normally applied in reverse flotation to float the gangue minerals (e.g., quartz, mica or feldspar). The performance of sodium oleate and lauryl amine as collectors in spodumene flotation has been investigated [10] andWeb
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Fluorite (CaF 2), mica (e.g., muscovite (KAl 2 (AlSi 3 O 10)(F, OH) 2) and biotite (K(Mg, Fe) 3 AlSi 3 O 10 (F, OH) 2)), amphibole ((Na, K) 0–1 (Na, Zn, Li, Ca, Mn, Fe 2+, Mg) 2 (Mg, …Web
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(3) Mixed flotation of spodumene and mica, and finally pumice. The reverse flotation operation process is carried out in alkaline pulp, with dextrin, starch, etc. as spodumene inhibitors, terpineol oil as a ing agent, and amine cationic collectors for flotation of quartz, feldspar, mica, etc. Gangue mineral, after the iron is removed from ...Web
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The first method is to flotation mica in acidic medium with amine collector, the pH value is controlled below 3.5, and the upper limit of the flotation particle size is 1.2mm. And desliming is required before flotation. When the slurry concentration is 30-45%, the concentrate recovery rate can reach more than 77%, and the concentrate grade is ...Web
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In practice, the flotation process under acidic or alkaline conditions is often employed for the recovery of fine mica, particularly mica resource in tailings [30][31][32] [33]. Both the acidic ...Web
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3.2.1 Flotation tests for mixtures of mica-rich Cu ore with mica-free Cu ore..... 86 3.2.2 Flotation tests with high purity mica mixed with base Cu ore and ground together 88Web
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Micas account for a great number of lithium bearing minerals with lepidolite, zinnwaldite and lithian muscovite. These minerals are known as lithium micas. If the production of Li 2 CO 3 or LiOH is well known for spodumene, development of …Web
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The optimum flotation conditions for calcite flotation were determined as natural pH: 7.9 and 500 g/Mg DER NA7 collector dosage; for mica removal pH: 3.1 and 500 g/Mg Custamine 9024 or A4 ...Web
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This paper reviews recent developments in the fundamental understating of ultrafine (nano) bubbles (NBs) and presents technological advances and reagent types used for their generation in flotation. The generation of NBs using various approaches including ultrasonication, solvent exchange, temperature change, hydrodynamic cavitation, and …Web
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In the stage of mica flotation, the pH value of the pulp was 7. After mica flotation, the pH value of the pulp was controlled at 9 with NaOH (AR, Macklin). ... The sum of the pollucite monomer and rich intergrowth (>3/4) was 85.25%, and that of mica was more than 90%. Judging from the dissemination feature of the minerals, the sample can …Web
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Reverse flotation process is used to separate minerals im-purities as concentrate from valuable mineral as tailings. In our case, impurities are presented by mica, dolomite, barite, hematite, iron oxides and feldspar. In conventional flotation, the mineral particle values are hydrophobic while the gangue particles are hydrophilic. TheWeb
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Acid-grade fluorspar, mica, free silica (SiO2) sand, and low-grade beryl (Be3Al2Si6O18) concentrate were produced in a 100 lb/h continuous column flotation unit (CCFU). The highest results achieved …Web
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In this study the flotation of a copper ore in the presence of talc and muscovite was studied. It was found that talc can affect copper flotation mainly via froth phase. The copper grade and recovery were affected in the presence of only 7% talc. On the other hand, muscovite influenced the pulp phase via affecting the pulp rheology.Web
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To remove the micaceous minerals by flotation, long chain aliphatic amines are usually used at pH of 2.5 to 5.0. With amine type collectors, the use of fuel oil increases the selectivity of flotation. To remove the iron bearing heavy minerals, fatty acids or sulfonates are used in acidic conditions.Web
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Mica firstly floated by amine (cationic) flotation at acidic pH (2.5-5) 2,3,5-8, followed by flotation of iron and titanium bearing (rutile) heavy minerals, using fatty acids in acidic medium (pH ...Web
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The performance of the mica flotation stage is evaluated primarily through the K 2 O and mass distributions in the mica concentrate. For these three samples, COMP A saw the highest mass (8.6%) and K 2 O (24.2%) report to the mica concentrate with only 3.3% lithium losses.Web
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Moreover, the sequence of addition of metal ions had an impact on the separation of spodumene. When Ca(II) and Mg(II) were used as activators in the artificial-mixed-ore flotation experiments, concentrates with recoveries of 75.6% and 76.3% and Li 2 O grades of 5.8% and 5.2% were obtained, respectively. Adsorption and activation …Web
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Volume 3: Flotation of Industrial Minerals. ... In the literature it has been quoted that flotation properties of various mica minerals are similar. However, many of the references found in the literature did not make mention of mineral types that were used in the studies. Mica can be floated using anionic or cationic collectors or a ...Web
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At pH 5.7, only short-range hydrophobic forces with decay lengths of approximately 1.3 nm were observed. At pH 9.5, however, a long-range hydrophobic force with a decay length of 5.5 nm was observed due to the coadsorption of dodecylammonium ions and dodecylamine, which increases the packing density of hydrocarbon chains on …Web
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Of the many different minerals in the mica family, muscovite (KAl 2 (AlSi 3 O 10)(OH) 2) is the most common, and its physical properties render it useful in a wide range of applications, such as: insulators; condensers; plastics; cosmetics; and paints [1], [2], [3]. Muscovite is primarily separated from common gangue minerals such as quartz and ...Web
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Mica is mostly brown, green, grey and red in colour, with a hardness of 2.5-4 and a specific gravity of 2.7-3.3. Mica is very flakeable and can be divided into very thin lamellae, transparent to translucent, with a glassy lustre. ... Flotation Process. Flotation is one of the most commonly used processes in mica separation. The method mainly ...Web
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The experimental results show that the optimum pH value of flotation is 3, and the optimum dosage of HBDB and DA are 150 g/t and 300 g/t respectively. In bench-scale flotation experiments, compared with the conventional monomer DA collector (350 g/t), the Gemini HBDB with only 1/2 dosage of DA (175 g/t) increased the recovery of …Web
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In this paper, a complete scheme aimed at improving the flotation performance of spodumene and comprehensively recycling mica and feldspar from …Web
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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 ...Web
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The main objective of flowsheet development for hard rock lithium deposits is to evaluate the ability of these options to produce a spodumene concentrate with a …Web
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Mica firstly floated by amine (cationic) flotation at acidic pH (2.5-5) 2,3,5-8, followed by flotation of iron and titanium bearing (rutile) heavy minerals, using fatty acids in acidic medium (pH ...Web
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For example, Israelachvili and coworkers found that the interaction forces between hydrophilic molecularly smooth mica surfaces in dilute electrolyte solutions …Web
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Figure 3 Ideal AFM force–distance plot of mica plate in water [29] transducer displacement from point 3 to point 4 was defined as the thickness of hydration film on the tips and solid surface. However, only hydration film on the hydrophilic mica surface was studied in Peng's report. For fine coal flotation system, it isWeb
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The Bureau of Mines has developed two methods for mica flotation. One method utilizes acid cationic flotation for recovery of mica. This method requires …Web
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The aim of this article is to review available data on crystallography and surface properties of Li-bearing micas in relation to physical–chemical properties such …Web
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Metal ions such as Fe 3+, ... Douglas W. Fuerstenau, Surface crystal chemistry in selective flotation of spodumene (LiAl[SiO 3] 2) from other aluminosilicates ... 174, Jia Tian, Longhua Xu, Houqin Wu, Shuai Fang, Wei Deng, Tiefeng Peng, Wei Sun, Yuehua Hu, A novel approach for flotation recovery of spodumene, mica and feldspar …Web
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In this study, there is 1.42% P2O5 in the P-containing V-Ti magnetite tailings in Miyi Region of China, with the valuable minerals mainly including apatite, and aluminosilicate minerals as the main gangue components. The direction flotation process was used to recover phosphorous from the low-grade phosphorous-bearing V-Ti …Web
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In the field of flotation, SA has been shown to be an efficient depressant in the scheelite–calcite–fluorite and galena–chalcopyrite flotation systems [24], [25]. In addition, sodium alginate has been used to enhance the removal efficiency of metal ions, such as Fe 3+, Cu 2+ and Ni 2+ via flotation [26]. The mechanism by which SA acts as ...Web
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