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The ASS can achieve flotation separation of apatite and silicate minerals in seawater. To further investigate the effect of seawater on the floatability of apatite and illite, seawater dilution experiments were carried out and the results are shown in Fig. 3. The mixing ratio of deionized water and seawater was volume mixing ratio.
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DOI: 10.1016/J.MINENG.2016.12.008 Corpus ID: 100128689; The potential for dense medium separation of mineral fines using a laboratory Falcon Concentrator @article{Marion2017ThePF, title={The potential for dense medium separation of mineral fines using a laboratory Falcon Concentrator}, author={Christopher Marion and Hillary G …
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Apatite minerals are calcium-containing phosphate minerals having a chemical formula of Ca 5 (PO 4) 3 (F, Cl, OH), ... In the flotation separation of apatite and calcite, fatty acid collectors are adsorbed on both mineral surfaces owing to the presence of the same calcium ions on the cleavage planes [1], [26], [27]. Therefore, the floatability ...
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Iron concentration tailings contain many valuable minerals, including apatite, which is not currently being recovered despite its use to make fertilizers and chemicals. This article proposes a flotation circuit to recover apatite from tailings generated by mining in Chile, based on laboratory tests and using the "Split Factor" method. The …
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These three minerals—apatite, dolomite, and calcite—exhibit similar surface properties, given their shared occurrence of Ca 2+ ions on their surfaces [18], [19], [20]. Hence, to efficiently separate these minerals through flotation, collectors and depressants serve as key flotation reagents to increase the difference in hydrophobicities ...
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Bioflotation represents one of the growing trends to enhance the selectivity of conventional flotation processes. It utilizes the micro-organisms to replace or to interact …
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Matlahov, I. et al. Interfacial mineral-peptide properties of a mineral binding peptide from osteonectin and bone-like apatite. Chem. Mater. 27, 5562–5569 (2015).
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The gangue minerals consist of the silicate minerals such as pyroxene, olivine, plagioclase and some secondary minerals. The analysis of apatite by EDX showed the presence of fluor-apatite in the ore.
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The following three types of Ca mineral separation were discussed in this paper: separation of gypsum from other Ca minerals, separation of fluorite from other Ca minerals and enhanced separation of Ca minerals from each other, such as calcite from francolite, by mixing anionic and nonionic reagents. ... Flotation separation of apatite …
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The flotation separation of apatite from calcite is gordian due to the similar surface properties and calcium active sites, which make a poor selectivity in traditional fatty acid system.
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FS apatite was already very pure while YC and HM apatites were components of rocks and ores and thus had to be purified by regular mineralogical methods, such as laboratory magnetic and flotation separation. After that, the apatite samples used were ground by porcelain ball mill, and then screened by a wet sieve to …
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Most flotation separation processes of apatite utilize fatty acids as collectors, and the main technical challenge lies in finding efficient and environmentally friendly inhibitors. This study proposes the use of eco-friendly konjac glucomannan (KGM) as a depressant for the selective separation of apatite and dolomite.
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Froth flotation has been widely used for mineral separation and beneficiation (Li et al., 2017, Nasirimoghaddam et al., 2020, Zhang et al., 2020) and is one of the most efficient methods for obtaining qualified apatite concentrates (Yang et al., 2020). ... 2020). It has been reported that more than 60% of the apatite minerals worldwide are ...
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In the light of the adsorption difference of cationic collectors on quartz and apatite, an additional hydrogen bond functional group can be introduced into the traditional collector molecule—dodecylammonium acetate (DDA) to …
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In terms of flotation separation of apatite in deionized water, fatty acids or fatty acid derivatives, such as sodium oleate (NaOL), are generally used as collectors [20,21]. The
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The sample of apatite and calcite were purchased from Ye's Mineral Specimen Group, Guangdong Province, China and the high purities were confirmed by the X-ray diffraction (XRD) analysis and chemical composition analysis (shown in Fig. 1 and Table 1).The apatite contained 39.37% P 2 O 5 and calcite contained 55.98% CaO …
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1. Introduction. Calcite and dolomite are frequently encountered in sedimentary ores alongside valuable minerals. Issues arise when these latter are calcium-bearing minerals too (Jiao et al., 2023, Pereira et al., 2023).Froth flotation is usually introduced in the upgrading process of this type of ores, especially in the absence of …
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Bioflotation represents one of the growing trends to enhance the selectivity of conventional flotation processes. It utilizes the micro-organisms to replace or to interact with the chemical reagents to increase the gap between surface properties of similar minerals and to enhance the separation selectivity. In this work, dolomite-phosphate separation …
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Typical harmful minerals in iron ore include pyrite, apatite, etc., which contain the harmful elements S and P. They are also weakly magnetic. ... that is, staged grinding and separation, to reject the gangue minerals as early as possible and keep the mineral mass for final grinding as low as possible. 2.
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Apatite, an important source of phosphorus, is difficult to separate from other calcium minerals due to the low grade, complex component, difficultly mineral liberation and similar surface properties (Yang et al., 2019). Flotation is the most beneficial means in the separation of apatite from gangue minerals.
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Global demand and consumption of rare earth elements and compounds have led to increasing research to further our understanding of their beneficiation and recovery. Monazite is the second-most important rare earth-bearing mineral that can be exploited. In this study, the surface chemistry of monazite in terms of zeta potential, …
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The single mineral flotation results illustrate that DMNS could depress the dolomite floatability while it had little influence on the floatability of apatite. To confirm …
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@article{Li2022ImpactOG, title={Impact of geological origin on flotation separation of apatite from dolomite using $beta$-naphthyl sulfonate formaldehyde condensate as depressant}, author={Hongqiang Li and Yuxuan Mao and Huifang Zheng and Richard M. Kasomo and Peng Huang and Yingxin Chen and Qian Chen and …
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The results of single mineral flotation and artificial mixed minerals flotation confirmed the success of flotation separation of scheelite and apatite. The FTIR and XPS analysis showed that the chelation action between the –COO– groups and the Ca on apatite surface was responsible for XG chelating adsorption.
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The aim of this study is to determine the feasibility of using a centrifugal heavy medium separation (CHMS) method to obtain apatite concentrates from ore slimes (particle size < 45 µm, 4.5% P2O5). The effects of the specific gravity, centrifugal speed, and time on the P2O5 content of the product and its recovery were investigated based …
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To realize the flotation separation of the two minerals, many inorganic depressants are usually used, which contaminate the environment. In this study, the behavior of the polymer molecule gum arabic (GA) as a depressant of calcite in the apatite flotation was investigated by the pure mineral flotation experiments, and the mechanism …
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ABSTRACT. Apatite (Ca 10 (PO 4) 6 F 2) is the most important phosphate mineral, and flotation is the main beneficiation method to separate apatite from its major gangue mineral calcite (CaCO 3).Till date, fatty acids and their salts have been widely used as collectors in the apatite/calcite flotation separation due to their low cost and strong …
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Ore beneficiation, a crucial process in the utilization of phosphate ores, involves the separation of the valuable mineral, apatite, from its associated gangue minerals like quartz. This process aims to enrich the content of apatite in the resulting beneficiation product. Fine grinding is frequently required to ensure the adequate …
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However, the recovery of apatite from gangue minerals does not only rely on the selection of flotation reagents, but also the adsorption mechanism all together with solution chemistry. ... Naixu Z, Li Z (2020) Investigating flotation behavior and mechanism of modified mineral oil in the separation of apatite ore. Physicochem Probl Miner Process ...
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Although the improved separation of apatite from carbonate mineral can be achieved using these phosphate depressants, their extensive use in production practices will bring potential environmental pollution problems such as water eutrophication and calcium phosphate scale formation (Jaffer et al., 2002).
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