It is mainly composed of fluorite (up to about 85%) and quartz, with only a small amount of calcite, barite and sulfide. Reducing silicon in concentrates is the focus of this type of ores, and the requirements for silicon content vary according to different usage requirements. In the process of beneficiation, grinding is a factor that greatly affects the flotation of quartz-type …
The fluorite concentrate has a grade of 82.23 % CaF 2 and a recovery of 90.04 % CaF 2, demonstrating the superior selectivity of CS for bastnaesite over fluorite via flotation separation of artificially mixed minerals. The flotation separation of fluorite and bastnaesite is realized by restraining rare earth elements.
Fluorite is an important industrial mineral composed of calcium and fluorine (CaF2). This mineral is widely distributed through different deposits. However, in most cases, fluorite is tightly associated with gangue, such as calcite and quartz. In this paper, different depressants are tested in the flotation of fluorite in two different laboratory …
In order to separate fluorite and calcite inhibited in tungsten tailings, the effect and mechanism of using ultrasonic external field activation to separate fluorite and calcite inhibited …
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 …
Flotation The conditioned pulp is introduced into a flotation cell, typically equipped with agitating mechanisms. Air is bubbled through the pulp, and the hydrophobic fluorite particles attach to the air bubbles, forming a froth on the surface. The froth, containing the floated fluorite particles, is then collected and further processed. Dewatering
The technology (dextrin + tannin) produced an excellent result, simplifying the flow during fluorite flotation, which can led to a reduction in power consumption as well as reduction in production ...
Thorough understanding of each flotation machine's characteristics and selecting the appropriate equipment based on the specific characteristics and processing requirements of fluorite ore is ...
DOI: 10.1016/j.jclepro.2019.118179 Corpus ID: 203159860; Clean utilization of waste oil: Soap collectors prepared by alkaline hydrolysis for fluorite flotation @article{Zhu2019CleanUO, title={Clean utilization of waste oil: Soap collectors prepared by alkaline hydrolysis for fluorite flotation}, author={Xiang-nan Zhu and Xian-jun Lyu and Qiang Wang and Jun Qiu and Sha …
In flotation of fluorite, it can be also feasible to add a small amount of sulfide mineral to inhibit residual sulfide mineral, and ensures the quality of fluorite concentrate. Mixed flotation of fluorite and barite flotation, and then …
Article. Publication Date. 4-2021. Department of Chemical Engineering. Abstract. Fluorite, as a scarce nonrenewable strategic non-metallic mineral resource, is the primary raw material for …
This work studies the influence of aeration flow rate, time of flotation, agitator speed and pH in the flotation process of fluorite slimes. Results were adjusted to a polynomial mathematical model.
Flotation is the most efficient method to recover this type of fluorite. Fluorite and calcite contain Ca 2+. During flotation, the physical and chemical properties of the two …
with SHA. After adding the ing agent, stir for 2 min and then flotation for 4 min. The products were dried and weighed [25], and the calculation formula of flotation re-covery is as follows. The micro-flotation tests flow is shown in Figure 3. Ý L I 5 I 5 EI 6 Hsrr¨ (1) Figure 2. XFG flotation machine used for the flotation tests ...
The technology (dextrin + tannin) produced an excellent result, simplifying the flow during fluorite flotation, which can led to a reduction in power consumption as well as reduction in production ...
The high dosage of lead ions such as 9 × 10 −4 mol/L has depressed the fluorite recovery to below 20%. The flotation recovery curve of fluorite shows a reducing trend with the increasing concentrations of lead ions. Fig. 2 (b) shows the flotation selective index viz. the ratio of the scheelite recovery to the fluorite recovery.
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. …
Accordingly, a study for improving the fluorite flotation by dispersion processing has been carried out in this work. The fluorite flotation is performed by using oleic acid as the collector and quebracho as the depressant, which is a commonly used chemical scheme for fluorite flotation (Crozier, 1992, Raju and Prabhakar, 2000).
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 ..., or the minimum stress needed for the occurrence of flow. The yield stress of the flotation pulp is an indicative parameter of the particle interactions between different minerals. It ...
In this paper, starch was selected as an inhibitor for the flotation separation of fluorite and barite, and a novel anion-modified collector, α-bromo decanoic acid (α-BLA), was …
Fluorite is a dominant gangue mineral in scheelite flotation. The selective flotation separation of scheelite from fluorite is problematic, not only because these two minerals share the same calcium cation, but also they have similar surface properties (Bo et al., 2015, Han et al., 2017a, Han et al., 2018).It is impossible to separate those two minerals using fatty acid without …
A tech-economic assessment based on the pilot program showed that compared with sodium silicate, the new technology (dextrin + tannin) improved fluorite recovery by 19.23%, removal rate of CaCO 3 by 13.43% and SiO 2 by 8.93% and reduced production costs by $2914.8 per day. The technology (dextrin + tannin) produced an excellent result, simplifying the flow …
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 or H4L) is widely …
Wash water additions affected fluorite grades and recoveries during coarse bubble column flotation in a complex manner (Fig. 10). Increasing wash water addition from 0 to about 6 pct of the volumetric feed slurry flow rate increased column flotation fluorite grades but decreased fluorite recoveries.
The recommended process conditions enable production of flotation concentrate at fluorite content of 61.4% and fluorite recovery of 85.88%. The article presents the case-study …
The flotation of fluorite from ores by using acidized water glass (AWG)as depressant has been studied for the substitution of the commonly used depressant (soda ash plus sodium lignosulfonate).
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 collectors and depressants on the recovery of fluorite is elaborated for the first time. Finally, the most widely seen fluorite-flotation cases ...
Sulfide ore flotation methods are extremely important in the mining industry. Efficient extraction of valuable metals from low-grade ores helps maximize resource utilization and reduce waste. Compared with traditional …
Therefore, the flotation tests of the single mineral were performed to evaluate the effect of the pulp pH and the concentration of SDAA on the flotation behavior of fluorite and scheelite, as ...
The flotation behavior of scheelite, fluorite and calcite individually using a collector mixture of 733 and MES at different mass ratio was investigated. A series of flotation results demonstrate that the collector mixture of 733 and MES at a mass ratio of 4:1 achieves the best flotation separation performance, as shown in Fig. 3. Scheelite has ...