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Flotation is an effective method to remove the silicon-containing impurity quartz in the phosphogypsum. In this work, a surfactant tetradecyl dimethyl benzyl ammonium chloride (TDBAC) was first used as the collector of quartz to be separated from gypsum. The flotation behaviors of quartz and gypsum were investigated by micro-flotation …
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Quartz, the second most abundant mineral in the earth's crust, is a gangue mineral in practically every flotation process. Coarse quartz flotation has been...
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In this study, an optimized method was presented for the reverse quartz flotation in iron ore purification where sodium oleate (NaOL) was always selected as...
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In the present study, A novel ionic liquid composed of dodecyl trimethyl ammonium and diethylphosphonic acid was synthesized and used as flotation reagent for flotation separation of quartz and magnesite.
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Cosmogenic nuclide (CN) dating relies on specific target minerals such as quartz as markers to identify geologic events, including the timing of landscape...
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In order to clarify the effect of polar group modification on flotation performance of amine collector, flotation properties of quartz and hematite using... DOAJ is a unique and extensive index of diverse open access journals from around the world, driven by a growing community, committed to ensuring quality content is freely available online ...
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Materials. The XRD of malachite, quartz, and calcite were shown in Figure 1.The element analysis of malachite, quartz, and calcite were listed in Table 1. −75 + 38 μm fractions of single minerals were utilized in micro-flotation experiments, and −5 μm fractions were prepared for XPS measurement.Copper oxide ore from Jiangxi province …
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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 …
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Pure spodumene, feldspar, and quartz were manually selected, crushed, ground, and wet-sieved to a size fraction of −74 + 38 μm. Pure minerals were crushed by a hammer to a size fraction of −2 mm and were further ground to −74 μm using a ceramic ball mill (RK/CQM–φ280 × 290, Wuhan Rock).
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Quartz cannot be floated with potassium amyl xanthate as collector at any pH. Complete flotation is achieved with certain minimal additions of amyl xanthate and Pb++ from pH …
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In the context of collector development during the year 2021, Ruiqi Xie and their research team conducted a study on the behavior and flotation mechanisms of α-bromo dodecanoic acid (α-BDDA) in the flotation separation of spodumene from feldspar and quartz using Ca 2+ as an activator. The methodology included single-mineral and …
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Secondary actions. Search Journals Articles Documentation API OAI-PMH Widgets ... -N-dodecylamine: Synthesis and flotation performance to hematite and quartz Wenbao Liu, Xiangyu Peng, Wengang Liu, Kelin Tong, Yanbai Shen, Qiang Zhao, Sikai Zhao, Wenhan Sun; Affiliations Wenbao Liu School of Resources and Civil Engineering, Northeastern ...
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Flotation separation of limonite from quartz with sodium oleate: effects of limonite dissolution and addition of sodium hexametaphosphate Wang, Yuhua Lu, Dongfang
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Flotation experiments performed on a quartz-feldspar mixture demonstrate that quartz can be floated selectively from feldspars in diluted solutions of hydrofluoric acid (HF) simply by the aid of a frother. High grades and good recoveries were obtained for both quartz and feldspars. A feldspar concentrate of 99.9% at a recovery of 95.6% was produced.
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An improved method for producing high-purity quartz (Qtz) and potassium feldspar (Kfs) concentrates was developed using various chemical reagents. Froth …
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The cation reverse flotation is a widely used method in improving the grade of iron ore concentrate, but hematite depressant is the key. In this work, the flotation behavior of hematite and quartz using the complex of Fe(III) and xanthan gum (Fe(III)-XG) as depressant was investigated via micro-flotation tests.
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During the flotation of metal sulfide minerals, due to the interference of unavoidable ions, the quartz also partially floats in some cases. The research on the mechanism of quartz being activated … Expand
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The flow chart of quartz flotation is shown in Fig. 1.A 40 mL XFG tank flotation machine was used to conduct the flotation experiments [19]. 2.00 g of quartz particles and 30 mL of DI water were poured into the flotation tank and stirred to adjust the pulp for 2 min, after which pH regulator, activator (only present in anionic flotation), and …
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Secondary actions. Search Journals Articles Documentation API OAI-PMH Widgets Public data dump ... Effects of Hydrogen Bonds between Ethoxylated Alcohols and Sodium Oleate on Collecting Performance in Flotation of Quartz Na Zhang, Jiajia Li, Jue Kou, Chunbao Sun; Affiliations ...
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The selective separation mechanism of feldspar and quartz was revealed by flotation experiments, Fourier transform infrared spectroscopy (FTIR), X-ray …
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Actions. Cite; Collections. Add to Collections. Create a new collection; Add to an existing collection; Name your collection: ... On the other hand, direct flotation as an alternative route led to a partial flotation of quartz and in consequence reduced the grade of the final concentrate 10. However, the anionic reverse flotation is established ...
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The flotation response of malachite, calcite and quartz to bis (2-ethylhexyl) phosphate (DEHPA), dibutyl phosphate (DBP) and tributyl phosphate (TBP) was evaluated by micro-flotation experiments. The results showed that DEHPA exhibited an impressive flotation selectivity for malachite against calcite/quartz in the pH range of 6.0–9.0 and ...
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1. Introduction. Froth flotation is the selected method for the separation of quartz and feldspar. In the conventional process, feldspar is floated from quartz by using hydrofluoric acid (HF) as activator for the feldspar and a cationic collector (amine) at pH 2–3 (O'Meara, 1939). (1979) reported that HF creates a large difference in the …
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This work investigated the separation of fine quartz from kaolin by flotation. Single mineral flotation tests indicated that effective separation of quartz from kaolin was possible with acidic pH value (pH = 3), depressant of starch and collector of dodecyl amine (DDA). Rougher flotation tests of coal-series kaolin revealed that the SiO 2 /Al 2 ...
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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 …
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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.. …
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The flotation recovery of quartz increased from 25.65% to 94.54% with increasing L0-503 engagement and reached stability at 4 × 10 −4 mol/L. However, the flotation recovery of petalite was only 10.43%, …
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In this study, a combination of FTIR analysis, XPS analysis, DFT calculations, zeta potential characterizations, and micro-flotation experiments were used to examine the impacts of …
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The difference in surface charge between the minerals at pH 2 was found to be the basis for preferential feldspar flotation from quartz in mixed diamine/sulfonate collectors. The infrared spectra revealed no adsorption of sulfonate collector when used alone but displayed its co-adsorption as diamine-sulfonate complex when used with …
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plete flotation was effected from about pH 5 to pH 10. The second general area of investigation involved the flotation of two natural ores; the first, a low
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