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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For example, Jiang et al. [25] used benzhydroxamic acid as a collector and realized highly selective fluorite separation in the absence of a depressant. Gao et al. [26] used propyl gallate, which could be selectively adsorbed on fluorite, to separate fluorite from calcite successfully. The combination of various additives may allow the specific ...
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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. The development of a …
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This work demonstrated that trisodium nitrilotriacetate (TN) could be successfully used as a novel depressant during fluorite separation from calcite. We used micro-flotation and zeta-potential tests as well as FTIR and XPS to gain insights into the depression and adsorption behavior of TN during the flotation-based separation of …
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of fluorite ore can greatly vary across different locations, a depressant that is effective for the separation of one type of fluorite ore may not necessarily work for others. Consequently, the separation of fluorite from calcite remains a challenge, with much of the research focusing on the development of novel depressants.
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This study on the selectivity of N-OH-9,10-O-ODA in the flotation separation of fluorite and calcite, as well as its adsorption selectivity on the surfaces of these two minerals, can offer theoretical support for the future development of novel and highly selective fluorite flotation collectors. 2. Materials and methods2.1. Materials
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It can effectively separate fluorite and calcite and improve the grade and recovery rate of fluorite. The flotation separation of carbonated fluorite ores will be a long-standing problem in ...
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Bastnaesite ((Ce, La, Pr, Rb)CO 3 F) is an important source of light rare earth elements and is commonly associated with calcium (Ca)-containing minerals such as fluorite (CaF 2), calcite (CaCO 3) and dolomite ((Ca, Mg)(CO 3) 2).Froth flotation is an efficient method to separate bastnaesite and Ca-containing minerals. 2-hydroxy-3 …
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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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The flotation separation of fluorite from calcite can be achieved by using a mixed collector (NaOL:DDA = 9:1) and salted water glass as depressant. The adsorption mechanisms of the mixed collector were studied by FTIR analysis, wettability analysis, fluorescence spectrum analysis and AFM. The main conclusions are as follows:
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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 …
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Fluorite (CaF 2) and calcite (CaCO 3), both minerals containing calcium and owning similar surface properties, which is unfavorable to the selective separation.This study revealed the mechanisms of surface homogeneity transformation between them. Flotation results showed that F − ions increased the recovery of calcite, but CO 3 2− …
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In the present work, an eco-friendly inhibitor of PESA was utilized for the attempt of flotation separation bastnaesite from fluorite, and its effect and adsorption mechanism were studied with micro-flotation, contact angle, adsorption, and surface analysis technologies. The single mineral flotation results showed that the fluorite was ...
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However, efficiently separating complex associated fluorite from calcium-bearing gangue minerals is difficult due to the poor selectivity, low solubility and low temperature resistance of anionic collectors [8]. The separation of complex associated fluorite and calcite is limited by the lack of highly selective flotation reagents.
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This work identify the role of the collector molecules of thioether and hydroxamate groups in flotation separation of wolframite from fluorite, which is of great significance for improving the recovery of tungsten-minerals in the flotation process and developing effective flotation surfactants. 2. Materials and methods2.1. Materials and …
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The concentrating methods used for fluorite include flotation [12,13,14], photoelectric separation (for coarse-grained or bulk fluorite beneficiation), and gravity …
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DOI: 10.1016/J.MINENG.2019.01.030 Corpus ID: 104460928; Separation of bastnäsite from fluorite using ethylenediamine tetraacetic acid as depressant @article{Cao2019SeparationOB, title={Separation of bastn{"a}site from fluorite using ethylenediamine tetraacetic acid as depressant}, author={Zhao Cao and Yongdan Cao …
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The concentrating methods used for fluorite include flotation [12,13,14], photoelectric separation (for coarse-grained or bulk fluorite beneficiation), and gravity separation (for coarse-grained fluorite and barite separation) . Practices have shown that flotation can treat various types of fluorite ores, serving as the primary beneficiation ...
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At present, the primary beneficiation approach of fluorite is flotation [5].In the deposits, fluorite is often associated with gangue minerals such as calcite and quartz, …
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It is hard to separate barite from fluorite due to their similar surface properties. In this work, to achieve the separation of barite from fluorite, 2-phosphatebutane-1, 2, 4-tricarboxylic acid (PBTCA) was used to depress fluorite, and the floatability, separation efficiency and mechanism were researched by micro-flotation …
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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. The development of a selective collector and/or depressant is the key to achieving high selective separation. 1-Hydroxyethylidene-1,1-diphosphonic acid (HEDP …
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Therefore, the flotation separation of fluorite and calcite could be realized due to the remarkable difference of NaOl adsorption by using ASKG as selective depressant. Introduction. Fluorite (CaF 2) is widely applied in the fields of metallurgy, ceramics, chemistry, architecture, and medicine due to its high content of fluorine …
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The efficient separation of fluorite and calcite is a challenging task in the field of mineral processing because of their similar chemical and physical properties. In this …
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The separation of fluorite and bastnaesite has improved somewhat as a result of the aforementioned studies, but there are still some problems, such as low …
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In this study, the pH range is 7–11, including the optimal pH for the separation of fluorite and calcite [15,23,28] Figure 2a shows that, in the pH range of 7–11, the flotation recovery of fluorite increases first and then decreases with the increase of solution pH, and the flotation recovery of calcite decreases first and then increases ...
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The separation of fluorite from calcite without using any depressant can be achieved by using PG as the collector. The flotation mechanism of fluorite and calcite was studied by zeta potential measurements, adsorption, FT-IR and XPS analysis. The results indicated that phenolic hydroxyls were the functional groups of PG which can selectively ...
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1. Introduction. Fluorite (CaF 2) is a vital fluorine-bearing mineral widely applied in the area of metallurgy, military, ceramics, medicine and building materials [1], [2].With the development and upgradation of industrial production, the demand for this mineral sustainedly growth. Many countries listed it as strategic reserve resources due …
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However, the flotation separation of fluorite and calcite under anionic fatty-acid system is difficult and problematic and the main reasons are as follows (Zhu et al., 2018): (1) their similar surface properties and similar reactivity to fatty-acid collectors; (2) their soluble characteristics and complex dissolved mineral lattice ions and (3 ...
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Fluorite is usually separated using flotation due to its good floatability. However, it is difficult to achieve effective separation of calcite and fluorite during production owing to their similar surface properties such as hydrophobicity, surface activity, and crystal structure.
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It is difficult to separate fluorite and calcite due to their similar surface properties. This article applied combined collector cetyltrimethylammonium bromide (CTAB)/styrene phosphonic acid (SPA) to separate fluorite from calcite and explored the adsorption morphology and interaction force. Flotation results indicated that effective …
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To achieve the efficient flotation separation of cassiterite from fluorite, an eco-friendly depressant, the disodium salt of adenosine 5′-triphosphate (Na 2 ATP), was employed for the selective depression of fluorite. The performance of Na 2 ATP as a depressant in the flotation of cassiterite and fluorite was evaluated by micro-flotation …
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In contrast, oleic acid exhibits a poorer selectivity in the flotation separation of fluorite and calcite, as fluorite and calcite display high and similar recoveries when oleic acid is used alone within the experimental pH range. To achieve the selective separation of fluorite and calcite, depressants must be used in combination with oleic acid.
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DOI: 10.1016/j.molliq.2024.125304 Corpus ID: 270566406; Enhanced flotation separation of fluorite and calcite using novel collector: Experimental and theoretical Insights @article{Liu2024EnhancedFS, title={Enhanced flotation separation of fluorite and calcite using novel collector: Experimental and theoretical Insights}, author={Chang Liu and …
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DOI: 10.1007/s11771-023-5282-z Corpus ID: 258336809; Flotation separation of fluorite from calcite by a new depressant curdlan and its mechanism @article{Han2023FlotationSO, title={Flotation separation of fluorite from calcite by a new depressant curdlan and its mechanism}, author={Wen-jie Han and Yi Min Zhu and Wenxu Ge and Jie Liu and …
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The surface characteristics of fluorite and calcite exhibit a close analogy, posing a formidable challenge to flotation separation. Hence, the development of a highly efficient reagent for fluorite holds paramount significance and value in addressing the challenging separation of fluorite and calcium-bearing minerals.
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However, since the mineral surface dissolution, the fluorite and calcite show the similar physical and chemical properties, which leads the separation of fluorite from calcite to be a challenge [5, 9, 10]. In order to strengthen the separation of fluorite from calcite, many effort have been done in the developing of new depressants.
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The separation of fluorite and bastnaesite has improved somewhat as a result of the aforementioned studies, but there are still some problems, such as low separation efficiency, toxic chemicals, and high cost. Causticized starch is a kind of high molecular carbohydrate that is environmentally friendly, non-toxic, and inexpensive. …
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