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Beneficiation of phosphatic ores through flotation: Review of
It is also possible to achieve a selective flotation of carbonate and siliceous gangue elements by operating successively, by means of a collector of ester phosphoric type (alkylphosphates in C8--C20) (Table XVIII): (a) a phosphate + carbonate bulk flotation, silica remaining at cell bottom; TABLE XVII Flotation with an amphoteric reagent ...
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Efficient flotation separation approach of apatite from calcite for
The PS was then evaluated for its ability to depress apatite, enhancing the separation efficiency of apatite from calcite in phosphate rock beneficiation via reverse flotation. Micro-flotation experiments revealed PS's distinct depression effect on apatite while minimally impacting calcite.
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Flotation separation of apatite and calcite using gum arabic as a
The results of single mineral flotation experiments showed that GA performed a considerable selective depression on calcite at pH 7–11, and a concentrate with apatite recovery of 88.84% and P 2 O 5 grade of 26.86% was obtained in the apatite-calcite binary mixed mineral flotation experiment. Therefore, GA can be used as a separate depressant ...
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Mechanism of calcium lignosulfonate in apatite and dolomite …
ively depress calcite in scheelite flotation [27–28]. Lignosulfonate is also used as depressant for the flotation of muscovite [29]. Moreover, calcium lignosulfonate also has depressant effect on chalcopyrite [30], talc [31]. Although calcium lignosulfonate has many applications in flotation, its selective depression of dolomite in apatite flota-
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Flotation separation of smithsonite and calcite in sodium oleate …
The main depressants for separating smithsonite and calcite by flotation are inorganic and organic depressants. Inorganic depressants mainly include sodium silicate (Na 2 SiO 3) and sodium hexametaphosphate ((NaPO 3) 6) (Changgen, 1983, Liao et al., 2022).Currently, sodium silicate is the most commonly used inorganic depressant in the industry.
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Calcite-Apatite Flotation
carbonate and phosphate can be somewhat altered.. in the presence of one another. Carbonate and phosphate species can be expected to chemisorb - --on the calcite surface and thus can compete with oleate for the surface Casites resulting in flotation depression. Ca on the ~ - - -
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An Overview of Calcite Recovery by Flotation
In general, precipitated calcium carbonate (PCC) is used as a mineral filler in paper industries; while natural calcite (CaCO3) ore is also suitable for industrial use if it is a finely ground high-grade material. Naturally, calcite is …
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Effect of depressants in the selective flotation of smithsonite and
Abstract: In order to selectively separate smithsonite and calcite using potassium lauryl phosphate as collector and reveal the depression mechanism, the approaches of micro-flotation and zeta potential measurements were adopted. The effects of sodium hexametaphosphate (SHMP), water glass (WG), carboxymethyl cellulose (CMC) and …
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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 collecting ability, but their …
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New insights into selective depression mechanism of Tamarindus …
Fluorapatite (FAp) is a useful mineral in low-grade phosphate ores, with which gangue minerals consist of two main groups: siliceous minerals, such as clay minerals and quartz, and carbonate minerals, such as dolomite and calcite (Cal) [6], [7].For effective separation of FAp from gangue minerals, phosphate ores are usually treated by heavy media beneficiation, magnetic …
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Review of the Main Factors Affecting the Flotation of Phosphate …
In that sense, the relevant parameters of phosphate ores flotation are discussed while focusing on apatite, calcite, dolomite, and quartz as main constituent minerals. Leading phosphate producers ...
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Calcite-Apatite Flotation
The effects of apatite and calcite supernatants on calcite flotation is to depress the flotation markedly in the neutral to alkaline pH (pH < 13) range.
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Role ofDissolved Mineral Species in Calcite-Apatite Flotation
enologically related to flotation depression below pH 13.0. Fig. 7- Effect ofK2C03 addition on oleate flotation of calcite Apatite Flotation The pH dependence of apatite flotation at 2 X 10- 6 kmol/rnf potassium oleate is shown in Fig 8. The level of oleate in this case is almost two orders of magnitude lower
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Review of the Main Factors Affecting the Flotation of …
The way to successfully upgrade a phosphate ore is based on the full understanding of its mineralogy, minerals surface properties, minerals distribution and liberation. The conception of a treatment process consists of …
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The role of sodium alginate in the flotation separation of apatite …
Apatite is the valuable mineral in phosphate ores. It is classified as a sparingly soluble salt-type mineral. A common group of minerals found with apatite as gangue are clay, dolomite, quartz and calcite [1, 2]. The flotation of phosphate ores containing siliceous gangue is successful due to the different surface properties of silicates and ...
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Advancing phosphate ore minerals separation with sustainable flotation
To achieve this, phosphate froth flotation has been applied since the early 20th century, which can be performed through direct or reverse flotation methods. The first approach consists in the impurities' depression and the apatite recovery, whereas the reverse flotation involves the apatite depression and the gangue flotation [8].
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The flotation of apatite and calcite using different reagents: A
most important phosphate mineral and flotation serves as the primary method for separating it from its predominant gangue ... exhibited the selectivity for calcite depression in binary ... to 10% at a concentration of 10 mg/L [32]. El-Mofty et al. (2015) conducted a study on calcite flotation in which recovery was achieved using 5×10-5 M ...
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Advancing phosphate ore minerals separation with sustainable flotation
As semi soluble salts minerals (included in non-sulphide ores), phosphate rock is the principal natural resource exploited in the mining industry for the extraction of phosphorus [4, 6].It is predominantly composed of apatite, which constitutes the valuable fraction, as well as carbonates (calcite, dolomite), silicates (clays and quartz) and other minerals, which are …
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Efficient resource utilization of gypsum in the flotation separation …
The objective of this study was to examine the selective depression mechanism of gypsum in the flotation separation of apatite from calcite. The flotation behavior of apatite and calcite before and after the addition of gypsum and the effective components of gypsum in solution were investigated via micro-flotation experiments.
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Evaluation of flotation strategies for sedimentary phosphates with
The results show that a single stage for flotation of phosphate or calcite is not enough to obtain high grade concentrates. Among three different processes for carbonate flotation, the results reveal better selectivity when phosphoric acid is used as depressant for phosphate. ... The depression of phosphate in acid media is possibly due to the ...
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Calcite Flotation in Potassium Oleate/Potassium Dihydrogen …
their interaction on calcite flotation using H 2SO 4 as a pH regulator. In addition, to elucidate the depressing action of KH 2PO 4 on calcite, electrokinetic properties of calcite have been …
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Calcite Flotation in Potassium Oleate/Potassium Dihydrogen Phosphate
The flotation of calcite alone or from phosphate slimes using potassium oleate as a collector and in the presence of ... to tackle this complexity, calcite reverse flotation (calcite depression ...
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Apatite–Calcite Flotation Separation Using Sodium N
Froth flotation is a commonly utilized beneficiation technique for effectively separating apatite from other gangue minerals, such as calcite. It is difficult to achieve good separation with fatty acid collectors due to their similar interactions with apatite and calcite. In this work, sodium N-lauroyl sarcosinate (SNLS) was used as the collector for the selective …
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Investigations of amino trimethylene phosphonic acid as a green …
Guar gum selectively adsorbed on the calcite surface and formed strong Ca-O chemical bond via phosphate group and hydroxide radical, which reduced the number of Ca adsorption sites on the calcite surface and thus hindered the interaction between sodium oleate and calcite surface, realizing the effective flotation separation of smithsonite from ...
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Investigating the Mechanism of Diethylenetriamine …
DTPMPA was used as a chelating inhibitor to study the flotation, separation, and adsorption behaviors of fluorite and calcite minerals. The microflotation experiment showed …
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Enhancing selective calcite and dolomite flotation in the …
This paper presents a comprehensive study on the selective flotation of a multi calcium-bearing minerals ore, focusing on the efficient removal of dolomite and calcite …
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Beneficiation of Sedimentary Moroccan Phosphate Ores
Results of work aimed at optimizing depression of phosphate oölites during inverse flotation of the carbonate gangue with sodium oleate are reported in Part 4. ... The flotation of calcite and phosphate oölites, using both anionic and cationic collectors, is discussed in the third part. It is shown that selective recovery could be obtained ...
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Flotation separation of apatite and calcite using gum arabic as a
However, admittedly, the efficient depression of calcite remains a difficult subject in phosphate flotation process. Gum arabic (GA) is a kind of natural gum produced in the semi-desert region of Sub-Saharan Africa, which has a complex chemical structure of branched chains of (1−3)-linked D-galactopyranosyl containing L-arabinofuranosyl, L ...
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Efficient resource utilization of gypsum in the flotation separation …
The results showed that gypsum can be used as a selective inorganic depressant of calcite and for flotation separation of apatite from calcite, which provides a new method for the …
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Investigation into the flotation of malachite, calcite and quartz with
The flotation response of malachite, calcite and quartz to bis (2-ethylhexyl) phosphate (DEHPA), dibutyl phosphate (DBP) and tributyl phosphate (TBP) was evaluated by micro-flotation experiments. The results showed that DEHPA exhibited an impressive flotation selectivity for malachite against calcite/quartz in the pH range of 6.0–9.0 and ...
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