Fluorite flotation process is applied for refractory fluorite with complicated properties such as high mud content, impurity containing, fine particle distribution etc. Our fluorite flotation process has many advantages …
A flotation of fluorite ore processing method, it is granted a patent improvements 87,105,202 No.Flotation fluorite mineral acid jacketed plus synergist modifier. Any one of the water glass of the present invention, the addition of acid and the …
With the rapid development of new energy industry, the importance of fluorine chemical industry gradually appears (Asadi et al., 2018).As the dominant raw material for extraction of fluorine, the demand of fluorite also increases rapidly (Liu et al., 2019b, Miller et al., 1989).Froth flotation has been widely applied to separate and enrich fluorite from its ores …
The present invention is a process for flotation of fluorite ore, which is an improvement of the approved patent of No. 87105202. In the prior art, the flotation fluorite ore …
Carbonate‐fluorite ore is one of the main types of fluorite ores, usually in coexistence with other gangue minerals like dolomite, calcite, and others.[5, 6 ] It is difficult to separate fluorite and dolomite efficiently due to their extremely similar floatability. An effective way to improve the flotation separation of fluorite and dolomite ...
For fluorite ores, fatty acid and sodium silicate are frequently used as a collector and depressant, respectively [19], [20], [21]. Innovations and combinations of various additives comprise a significant share of the advanced investigations in fluorite flotation [22], [23], [24]. In some situations, effective flotation could be realized with ...
The main approach to purifying the fluorite resources is flotation [4].In this regard, sodium oleate (NaOL) as the derivative of fatty acids has been widely used as collector, as it can adsorb on the minerals and makes their surfaces hydrophobic, thereby improving their floatabilities [[5], [6], [7]].Nevertheless, NaOL performs a poor selectivity to adsorb on the …
As a result, the separation of parisite from calcite and fluorite through flotation poses a significant processing challenge. To enhance the efficiency of the bastnaesite flotation process by suppressing Ca-containing gangue minerals, researchers have been exploring and utilizing organic inhibitors.
Reverso Context: In the 35mm F1.4 DG HSM, FLD ("F" Low Dispersion) glass, which is equivalent to fluorite in its characteristics, and SLD (Special Low Dispersion) glass help optimize the power distribution of the lens. This optimization minimizes axial chromatic aberration by causing the different wavelengths of light to strike the same focus position while also …
A process for flotation of fluorite ore, which is an improvement of the approved patent of 87105202. In the prior art, the flotation fluorite ore is an acid addition sleeve and a synergist as …
Reverso Context: Carbonate - Flotation Separation Of Fluorite Mine,-"Of Fluorite Mine" Context Documents Expressio Reverso Corporate
It is followed by a systematic review of common reagents involved in fluorite flotation, including collectors, depressants, regulators, modifiers, and frothers. Specifically, the synergistic effect of …
Micro-flotation tests showed that IDS revealed strong depression on the flotation of fluorite. When IDS was 30 mg/L, the BaSO 4 grade and recovery in the concentrate reached 90.15 % and 92.00 %, and the CaF 2 grade and recovery in the tailing reached 89.77 % and 95.32 %, which could achieve effective separation. Zeta potential, contact angle ...
Therefore, fluorite could be separated from calcite by flotation with curdlan. Key words: curdlan; depressant; fluorite; calcite; flotation Cite this article as: HAN Wen-jie, ZHU Yi-min, GE Wen-cheng, LIU Jie, LI Yan-jun, LI Wen-bo. Flotation separation of fluorite from calcite by a new depressant curdlan and its mechanism [J].
Nevertheless, the flotation separation of fluorite from calcite is difficult to realize because of their similar physicochemical properties and natural floatability (e.g., crystal structure, zeta potential, and active site, etc.) (Abdalla et al., 2018).Additionally, in the flotation slurry, Ca 2+, F-and CO 3 2– dissolved from the surface of fluorite and calcite promote surface …
Fluorite (CaF 2), an important non-metallic mineral, is widely employed in chemical manufacturing, metallurgy, and the glass and ceramic industries [1], [2].Consequently, high-grade fluorite is in great demand to meet the rapid development of related industries. However, in most cases, fluorite is tightly associated with gangue, such as barite (BaSO 4), calcite (CaCO 3), …
The results of flotation experiments show that the reverse flotation separation of fluorite from calcite at pH 6.0 can be well achieved with the reagent scheme of 3 × 10 −5 mol/L HEDP and 6 × 10 −5 mol/L NaOL. Moreover, by adjusting the pH to 8.0, the fluorite flotation depressed at pH 6.0
In this study, curdlan was used as an efficient and eco-friendly calcite depressant for flotation of fluorite/calcite. Firstly, the structure and molecular weight of curdlan were characterized. Floatation test results showed that the flotation difference between fluorite and calcite was expanded by curdlan, thus enabling the flotation separation of fluorite/calcite. The …
In this study, the effect of grinding media on the flotation behavior of fluorite using sodium oleate (NaOl) as a collector was investigated via micro-flotation experiments, zeta potential …
Fluorite flotation is usually realized with sodium lignosulfonate as depressant and fatty acid as collector at a high pH (Crozier, 1992, Ayhan et al., 2006).In the case where feed ores contain a significant amount of fine particles, the sedimentation rate of fine particles was found to be significantly slow due to the effective dispersion of the fine particles when lignosulfonate …
The flotation tests on the single minera ls of fine fluorite and quartz (all less than 10 m) as well as mixed minerals were conducted using water glass (WG) (with modulus ranging from 1.0
The production cost of a fluorite flotation plant is closely related to equipment, flotation process, and ore type. For different types, grades, and applications of fluorite ore, it is necessary to conduct tests and experiments to determine the most suitable flotation process and equipment configuration to achieve cost control and maximize ...
semisoluble salt mineral fluorite (CaF 2) and the rare earth (RE) semisoluble mineral bastnaesite ((Ce, La) CO 3 F) were investigated. The primary objective is to provide fundamental understanding of the surface chemistry features for both fluorite and ... understanding of the flotation chemistry for fluorite and bastnaesite, make improvements ...
The results of flotation tests with single minerals stated that the flotation of dolomite was vastly inhibited, while the fluorite was hardly affected when CS was added in flotation using sodium oleate as the collector. The concentrate grade of artificially mixed ore flotation fluorite reached 90.15%, and the recovery rate was 89.54%.
In this study, to enhance the flotation of fine-grained fluorite, a strategy that combines simultaneous grinding and surface modification via ball-milling and controlled gas …
Fluorite flotation process is applied for refractory fluorite with complicated properties such as high mud content, impurity containing, fine particle distribution etc. Our fluorite flotation process has many advantages including automatic …
A process for flotation of fluorite ore, which is an improvement of the patent granted to 87105202. In the prior art, the flotation fluorite ore is acid-added with a synergist as a regulator.
Fluorite is a rare, non-renewable, non-metallic mineral mainly composed of CaF 2, which is a national strategic resource (Sheng Chang et al., 2022).Fluorite is an equiaxial crystal system mineral that is often found in association with calcite, quartz, barite and other gangue minerals (Wang et al., 2020a).Fluorite is widely employed in several applications including …
The effect of fluorite particles on the flotation is shown in Fig. 2. As shown in Fig. 2 a, the recovery of magnesite without depressant treatment significantly increases from 36.09% to 78.62% when the pH increases from 6.0 to 9.0. Then the curve presents a declined trend, which decreases from 78.62% to 37.68% with pH from 9.0 to 11.0. ...
The floatability of fluorite and calcite as a function of NaOl dosage at pH 8.0 is shown in Fig. 4.As seen in Fig. 4, flotation recoveries of fluorite and calcite significantly increased with increasing dosage of NaOl and remained constant at high collector concentration.The flotation recovery of both fluorite and calcite was over 90 % using 1.5 × 10 −4 mol/L NaOl, …
The removal of fine quartz in fluorite concentrate is the main problem in fluorite flotation. In this study, the flotation tests on fluorite, quartz and a weight equivalent mixture (all less than 10 µm) using water glass (with different modulus) as depressants and sodium oleate as …