No. 1688, Gaoke East Road, Pudong new district, Shanghai, China.
No. 1688, Gaoke East Road, Pudong new district, Shanghai, China.
Apatite ores processing for REE as by-product has become more attractive recently (Stone et al., 2016; Wang et al., 2010). ... In the tailing the REE occur in the phases of apatite, monazite, allanite and pyrochlore. Flotation ... (Zhang et al., 2018) gravity separation using a shaking table followed by flotation was applied to concentrate the ...
Table 2. The ratio of apatite and carbonates depending on the composition of the sample of flotation feed Sample number 1 2 3 Grain size composition of the sample Size grade, µm – 315 + 160 – 160 + 71 – 71 + 0 – 315 + 160 – 160 + 71 – 71 + 45 – 315 + 160 – 160 + 71 – 71 + 45 % 15 25 60 15 25 60 15 50 35 Ratio 0.70 1.85 2.60 ...
A large apatite-iron tailings deposit is located north of Sweden in Kiruna and Malmberget, containing a substantial amount of P 2 O 5 (4–8%) from the previous magnetite …
X-ray diffraction (Fig. 1 (a)) and chemical assay (Table 1) suggested the purity of dolomite and apatite reached 95.1% and 93.0%. Download ... IDS and NaOL were introduced consecutively. Finally, the flotation was performed for 3 min. The froth and tailing products were collected to calculate floatability. Each flotation test was replicated ...
This manuscript presents a study on the recovery of apatite from magnetic tailings generated at the Minera del Pacífico Company, Chile. While the work holds relevance for the …
Vietnam. After many years of operation in the plant tailing pond, a large volume of tailing has accumulated with con-tent of 6–8% P 2 O 5. As apatite ore reserves are increasingly depleted, the issue of recovering apatite from accumulated tailings is an urgent one. In the world there are some stud-ies on recovering of apatite from old tailing ...
A sample of apatite-bearing tailings was collected from the tailing dump of the Kovdor beneficiation plant in the Kola province of Russia. The sample was thoroughly mixed and homogenised to have a representative sample for chemical and particle size analyses, mineralogy characterisation, and flotation tests.
Three different low grade tailing materials, 2.8-7.2 % P2O5 content from LKAB's magnetite beneficiation process have been extensively tested as feed material for apatite recovery by …
The application of nanobubbles through flotation of coarse apatite tailings evidently improved the process' metallurgical responses compared to flotation by conventional …
The S isotope composition (34 S/ 32 S) in apatite has been considered as a new powerful tool to trace S source reservoirs and to evaluate redox state and dynamic sulfur behavior in magmatic systems.This study presents the first in situ method to analyze S isotope compositions in apatite using laser ablation multiple collector inductively coupled plasma mass …
Historically, safe containment has been the main goal of tailings management. Disposal has taken place in sizable surface impoundments that are enclosed by dams or embankments, as well as in subterranean workings and unnatural depressions [10], [11].However, the environment and communities are seriously endangered by the inappropriate management …
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 work also suggests the results of graphical data processing related to tailing grain size distribution from the surface of the firmly established surface of the tailing dumps of ANOF-2.
A Study on Apatite Recovering from the Tailing of the Bac Nhac Son-Vietnam Beneficiation Plant by Combined Flotation in Mechanical and Column Devices. Duoc Van Tran S. H. Nguyen Dung Kim Thi Nhu Thanh-Hai Pham. Environmental Science, Engineering. Mining, Metallurgy & Exploration. 2023;
In this article, the recovery of the Y, La, Nd, and Ce rare-earth elements (REE) from apatite concentrate by acid leaching and digestion-water leaching processes were studied.
Moreover, the selectivity index (SI) was used to evaluate the impact of PAMS on the separation features of apatite and dolomite by direct flotation, and its calculation formula is expressed as follows (Cao et al., 2019b): (1) SI = ε C A ε T A × ε T D ε C D where SI is the selectivity index; ε C A and ε C D express the apatite and ...
To illustrate the effect of H 3 PO 4 on the flotation separation of apatite and dolomite, mixed mineral flotation tests were carried out (Table 1). In the presence of H 3 PO 4, a concentrate with 27.32 wt% P 2 O 5 and 5.78 wt% MgO was obtained from the feed that contained 19.95 wt% P 2 O 5 and 10.27 wt% MgO.
764 Table 1 765 766 767 Table 2 768 769 Table 3 Deposit Sample ID Host rock Deposit-forming processes References Siilinjärvi apatite - phlogopite ore CERAT1 Carbonatite Magmatic O'Brien et al., 2015 Pampalo gold ore CERAT2 Tholeitic metabasalt, sedimentary rocks, mafic schist Metamorphic, hydrothermal Sorjonen-Ward et al., 2015
The results from Table 1 and Fig. 2 verified that the purities of the apatite and dolomite were separately 96.36% and 98.39%, ... the concentrate and tailing products were collected for 5 min; (4) the acquired products were weighed after filtration and drying to determine the flotation recovery. Each test was performed more than three times and ...
The old tailing of the Bac Nhac Son beneficiation plant (Vietnam) has a significant apatite amount in the form of coarse unliberated particles. These millions of tons of tailing ore …
The apatite was ground in a rotary mill and wet screened at 150, 86, 75, 53, and 38 µm. The four narrow size fractions and the minus 38 µm apatite were used in this research. Each of the narrow size fractions of apatite were used to simulate the leaching of one uniform particle size. A chemical analysis of the apatite sample is shown in table 1.
The separation of the desired mineral (apatite) from impurities (gangue minerals) and nonphosphate materials in phosphate rock requires grinding and beneficiation units [8] for some operations such as froth flotation [9].Flotation, a physicochemical separation process that exploits the difference in the surface properties of valuable minerals and unwanted gangue …
TABLE 4 DIRECT ANIONIC FLOTATION OF APATITE Product Weight Grade % Recovery % (%) P2O5 Fe P2O5 Fe Apatite Conc. 26.72 25.33 6.45 64.89 17.13 Middling 18.39 9.47 8.49 16.70 15.52 Tailing 54.89 3.50 12.34 18.42 67.33 Feed 100 10.43 10.06 100 100 XRD pattern and SEM-EDS images of the apatite concentrate are shown in Fig. 6 and Fig. 7, respectively.
home to several active quartz and feldspar mining operations, with large waste tailing piles generated during the separation process for quartz and feldspar. The mineralogy, composition, and REE budget of ... Table 21: Standard Apatite Trace Element Data.....79 Table 22: Whole Rock Data of Spruce Pine Granodiorites ...
The apatite concentrate obtained from the tailings sample of the Zanjan Morvarid iron ore processing plant, located in Iran with dimensions of (mat{d}_{80}=75~mu) m according to Fig. 1, was used to acid leaching and digestion-leaching process experiments.Sulfuric acid, nitric acid, and chloridric acid with a purity of 95, 65 and 37 % …
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 on the Box–Behnken …
The content of main mineral ingredients per size grades of tailing sample, % Size grade, µm Apatite Calcite Dolomite Diopside Phlogopite Forsterite – 315 + 160 34.0 10.4 0.5 19.3 18.4 17.4 – 160 + 71 34.7 12.6 0.9 11.5 24.6 18.7 ... the ratio of apatite and carbonates (Table 2).
The middling regrinding and scavenger study results (Table 7) indicated that the V 2 O 5 grade of scavenger tailing was 0.35%, and it, together with the rougher tailing, could be rejected as final ...
The present study proposes three distinct processes to recycle rare earth elements (REE) from two low-grade secondary resources: REE-containing mine tailings and ferrous scrap from shredded waste of electrical and electronic equipment (WEEE). The first developed process extracts both REE and phosphorus from the apatite mineral contained …
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 iron tailings were characterized by granulometry, chemical and mineralogical analyses, zeta potential, and …
