Separation mechanism of apatite and dolomite with flotation …
However, achieving the separation of apatite from dolomite using fatty acid collectors alone is impossible without effective depressants, ... Pure apatite and dolomite minerals used …
Improved Flotation Separation of Apatite from Calcite with
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 …
Flotation separation of scheelite and apatite by …
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.
Minerals Engineering
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 …
Flotation separation of apatite from calcite based on the …
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.
Selective flotation separation of apatite from calcite using …
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 ...
Osteopontin regulates biomimetic calcium phosphate crystallization …
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).
Improving flotation separation of apatite from dolomite …
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).
Selective flotation of calcite and dolomite from apatite using …
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 …
Minerals | Free Full-Text | Recovery of Apatite from …
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 …
The potential for dense medium separation of mineral fines …
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 …
Formation of magnetite-(apatite) systems by crystallizing …
Magnetite-(apatite) ore deposits are interpreted as being formed by the crystallization of iron-rich ultrabasic melts, dominantly generated by the interaction of silicate melts with oxidized P-F-SO4-bearing sedimentary rocks. This hypothesis is supported by geologic evidence, experimental studies, numerical modeling, stable and radiogenic …
Flotation behavior and mechanism of microfine apatite and …
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.
Flotation separation of apatite from calcite based on the …
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.
The application of a novel amine collector, 1
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 …
The flotation separation of apatite from dolomite …
In this work, GJBW, a fatty acid-based agent, was used as an efficient collector to separate dolomite from apatite to achieve high-purity apatite. The flotation performance of dolomite and apatite in the …
Surface tension of flotation solution and its influence on the
This work presents and discusses the influence of the surface tension (γLV) of methanol/water mixtures on the flotation response of apatite versus gangue minerals conditioned with flotation reagents (75 g/t cornstarch and 100 g/t Berol 867) atpH 10.6. Berol 867 is a collector composed of sodium alkyl sarcosinate plus nonionic surfactant. …
Innovating an amphoteric collector derived from …
As a cationic collector, dodecylamine (DDA) finds widespread use in the reverse flotation separation of apatite and quartz. N-dodecyl-β-alanine (DDALA) is synthesized from the molecular structure of DDA.Consequently, the focus of this study is to comparatively explore the respective selectivities of DDALA and DDA in the reverse …
Improving flotation separation of apatite from dolomite …
Flotation is a separation and concentrate method that uses the physicochemical features of minerals to separate valuable minerals from gangue minerals [11][12][13], is regarded as the most ...
Improved Flotation Separation of Apatite from Calcite with
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 …
Flotation selectivity of novel alkyl dicarboxylate reagents for apatite …
Flotation recovery was studied in the pH range of 2–12 for apatite, and 6–12 for calcite (due to the alkaline nature of CaCO 3 it was not feasible to measure at a pH lower than 6) for a collector concentration of 2 × 10 −4 M with the data obtained presented in Fig. 2 a and b respectively. Even though the structures of the collectors are relatively …
Apatite–Calcite Flotation Separation Using Sodium N …
The Egyptian Mineral Resources Authority (EMRA) delivered pure apatite and cal-cite minerals. The samples were ground to a fineness of less than 0.100 mm …
Magnetic separation of monazite from mixed …
Magnetic separation is one of the key physical separation techniques utilised in the beneficiation of rare earth elements (REE) minerals. This technique generally aims at splitting highly magnetic ...
Dolomite-apatite separation by amphoteric collector in …
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 …
Separation and Purification Technology
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 the separation performance between apatite and dolomite minerals, the minerals mixture flotation were conducted and the related results were shown in Table 1.
Selective adsorption of sodium polyacrylate on calcite …
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 ...
Flotation separation of apatite and calcite using gum arabic …
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 …
Separation mechanism of apatite and dolomite with …
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.
The selective flotation separation of apatite from dolomite …
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 ...
The selective flotation separation of apatite from dolomite …
Through the flotation separation of apatite from its associated carbonate minerals, oleic acid serves as the predominant collector. However, owing to its weak selectivity, a Cl atom is introduced at the α-C position in oleic acid molecular structure, bringing about the …