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Fluorite, a strategic industrial mineral, was investigated for flotation separation from bastnaesite with tannic acid (TA) as depressant. In this study, the adsorption analysis indicates that the adsorption density of TA on bastnaesite was greater than that of fluorite. The zeta potential, Fourier transform infrared spectroscopy (FTIR), …
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In this study, anionic/cationic collector sodium oleate (NaOL) mixed with dodecylamine (DDA) and salted water glass were used to separate fluorite from calcite. The flotation separation performance and underlying mechanism were researched by micro-flotation experiments, Fourier transform infrared (FTIR) analysis, wettability analysis, …
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The recommended process conditions enable production of flotation concentrate at fluorite content of 61.4% and fluorite recovery of 85.88%. The article …
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Fluorite ore, as an essential raw material in the fluorinated chemical industry, required effective separation and purification. The removal of impurities such as quartz becomes the key point in fluorite flotation.In this work, the fluorite flotation tests via adding the different mass ratios of metal ions (Fe 3+, Cu 2+, Al 3+) and sodium silicate …
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Finally, the most widely seen fluorite-flotation cases, including separation of fluorite from quartz, calcite, barite, and sulfide, are summarized individually. The present review sheds new light on the deep understanding of fluorite flotation, the future synthesis of reagents, as well as their schemes in practical use.
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Fluorite (CaF2), as an important strategic mineral source, is usually separated from calcite by the common froth flotation method, but this separation is still not selective enough.
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A series of flotation tests on single minerals in the Supplementary Material showed that using sodium oleate could achieve an efficient separation of fluorite from …
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Through the flotation experiment of single mineral, it could be seen that the recovery of fluorite and quartz was quite different when NaOl was used as the collector. Therefore, the utilization of NaOl can realize the effective separation of fluorite and quartz. Download : Download high-res image (166KB) Download : Download full-size …
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At present, the separation technology of fluorite and calcite is still immature, and the research in this paper can promote the improvement of the separation technology of fluorite and calcite.
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The combination of Fe 2+ /Fe 3+ sulfate was used as selective depressant for the flotation separation of fluorite and calcite.. Ferrous and ferric species were in-situ generated on calcite surface to hinder the adsorption of NaOL. • Fluorite concentrate with CaF 2 grade of 80.29 % and recovery of 90.79 % was obtained using 1:1 mixed minerals.
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the fine quartz into the fluorite concentrate [16–18]. To date, little work has been conducted on the effect of the modulus of water glass on the flotation of fluorite and the existence of fine quartz in the fluorite concentrate. In this study, the effect of water glass modulus (n) on the separation of fine fluorite and quartz was studied.
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DOI: 10.1016/j.ces.2023.119608 Corpus ID: 265697228; Understanding the sequential flotation separation of fluorite, barite and calcite through the AFM adhesion force @article{Yu2023UnderstandingTS, title={Understanding the sequential flotation separation of fluorite, barite and calcite through the AFM adhesion force}, author={Jiang Yu and …
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The separation of quartz and kaolinite can then be performed. ... Huang et al. [26] studied the separation of fluorite and calcite using Fe 2+ and Fe 3+ as inhibitors. They deduced that almost no Fe 2+ /Fe 3+ is adsorbed on the fluorite surface, and calcite reacts with it to inhibit the NaOL adsorption on its surface. Qin et al. [27] studied ...
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flotation difference between fluorite and calcite was expanded by curdlan, thus enabling the flotation separation of fluorite/calcite. The selective depression mechanism of calcite by curdlan was investigated. It was found that curdlan was adsorbed by chemical bonding of its hydroxyl group with Ca on the calcite surface, having much greater ...
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single mineral pulp, using NaOl alone can achieve the separation of fluorite from quartz. (a) Figure 3. Cont. Minerals 2017, 7, 157 6 of 14. Minerals 2017, 7, 157 6 of 14 (b)
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To cope with the increase of sulfate gangue minerals in fluorite ores, flotation separation of fluorite from calcite and celestite using Al 2 (SO 4 ) 3 and acidified water glass (AWG) as mixture ...
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Therefore, using tannin and sodium humate as a combination inhibitor can effectively separate fluorite and calcite, which will promote the development and …
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In this flotation method, three types of separations (barite-fluorite separation, calcite-fluorite separation, and quartz-fluorite separation) are performed with success. Fatty acids (collector) and sodium silicate (depressant) were used for quartz separation as these chemicals were performed elsewhere with high flotation efficiency (Gao et al ...
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Quartz-fluorite separation. Quartz is often associated with fluorite [159]. The critical step for quartz-fluorite separation is grinding, to fully liberate quartz and fluorite …
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1. Introduction. Fluorite is one of the most important fluorine-containing minerals in Earth's crust, and it is composed of calcium and fluorine [1], [2].As an important non-metallic strategic mineral resource, fluorite plays an irreplaceable role in traditional industries such as metallurgy, chemical engineering, and building materials, and in …
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Request PDF | On Jul 1, 2023, Zhihao Guo and others published Utilizing N-hydroxy-9-octadecenamide as a collector in flotation separation of bastnaesite and fluorite | Find, read and cite all the ...
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NTA could achieve the efficient separation of scheelite from fluorite. Under the optimal separation conditions, the recovery of scheelite concentrate is 73.59 % and the grade of CaWO 4 is 73.19 %, and the recovery and CaF 2 grade of fluorite in tailings was 74.71 % and 79.44 % respectively. Mechanism study showed that although NTA had …
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Nonetheless, bastnäsite is often associated with calcium-bearing gangue minerals such as fluorite, and the separation of bastnäsite from fluorite by flotation is usually difficult due to their similar surface properties and floatability ... Separation of feldspar from quartz using EDTA as modifier. Miner. Eng., 12 (1999), pp. 1393-1397.
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The application of a novel amine collector, 1-(dodecylamino)-2-propanol, in the reverse flotation separation of apatite and quartz. 2024, Journal of Molecular Liquids. ... THODA exhibits a superior selectivity in the flotation separation of fluorite and calcite compared to oleic acid. Zeta potential experiments reveal that following the ...
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Pure hematite and quartz were sampled from "Ferriferous Quadrangle, Minas Gerais", and "Mineração Jundu from Descalvado-SP", Brazil, respectively. ... Owing to the similar surface properties of scheelite and fluorite, the separation of them is very difficult by only using the traditional collectors of fatty acids. In this study ...
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The separation of fluorite from calcite without any depressants can be achieved by using propyl gallate (PG) as the collector. The competitive adsorption …
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Semantic Scholar extracted view of "Efficient selective flotation separation of fluorite from calcite using ferrous and ferric species as combined depressant" by Junwei Huang et al. ... The combined application of Na2SiO3 and Mn2+ enhancing the flotation separation of quartz and kaolinite by NaOL. Ruizhe Wang Dandan Wu Qi Zuo Kuixain …
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However, fluorite is frequently associated with quartz, barite, calcite and kaolinite. Their similar surface properties lead to difficulty separating fluorite from …
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Depressants are an important factor affecting the flotation selectivity of minerals. However, there are very few studies on depressants for flotation separation of quartz and feldspar (Feng et al., 2018).Flotation depressants can generally be divided into two categories: organic and inorganic depressants (Wang et al., 2020).The effective …
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To achieve the efficient separation of fluorite from calcite, depressants were commonly introduced in the fluorite/calcite system. ... Modified starches have also been used as depressants in different mineral flotation systems, such as hematite-quartz [14], barite-fluorite [2] and hydraulic diaspore-aluminum silicate [15]. However, very few ...
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