apatite floatation process

An Alternative Flotation Process for Apatite Concentration ...

An Alternative Flotation Process for Apatite Concentration of the Itataia Carbonaceous Uranium-Phosphate Ore Author: Elves Matiolo, Ligia Gonzaga, and Ana Luiza Guedes Subject: Phosphates Created Date: 8/10/2016 1:24:46 PM

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US2466995A

US2466995A US636227A US63622745A US2466995A US 2466995 A US2466995 A US 2466995A US 636227 A US636227 A US 636227A US 63622745 A US63622745 A US 63622745A US 2466995 A US2466995 A US 2466995A Authority US United States Prior art keywords ilmenite apatite acid starch concentrate Prior art date 1945-12-20 Legal status (The legal status is an assumption and is not a …

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THE USE OF COLUMN FLOTATION FOR THE RECOVERY OF …

mainly of apatite, clay minerals, magnetite, barite, hydrated iron minerals, aluminum and ... different than that in mechanical flotation process. A column can support a deep froth bed and may use wash water (Figure 2) to maintain a downward flow of water in all parts of …

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Flotation of Dolomite from Apatite

 · The flotation process lasted 3 min for each test. Following this, the flotation recoveries were calculated based on the weights of concentrates and tailings. For artificial mixed minerals flotation experiments, the mass ratio of apatite and dolomite mineral was 1:1 for binary mixture. The flotation process was the same as single mineral tests ...

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Innovative Solutions for Flotation of Industrial Minerals

for apatite flotation where the percentage of silicates or calcium oxide / phosphorous pentoxide ratio is high. Lupromin® FP A 711 is an anionic collector recommended for apatite flotation where the percentage of silicates or calcium oxide / phosphorous pentoxide ratio is high. These products

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US5407080A

This invention relates to apatite flotation reagents which can be used simultaneously with silica collectors in a coflotation process without problems of incompatibility between the apatite flotation reagent and the silica collectors. The apatite flotation reagent includes soya lecithin. The soya lecithin can be used as an apatite collector by itself or can be blended with a phosphate ester ...

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Apatite production in Malmfälten | LKAB Minerals | ReeMAP project

The present invention, named Bunge/Fosfertil process, is applicable at different lithologies of phosphate ore with carbonated-silica matrix from igneous and sedimentary sources, i.e., consists of comminutioning the ore by crushing, homogenization, milling and disliming, prior to the apatite flotation. The dislimed and milled ore pulp with solids concentration above 40%, being initialy ...

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Hematite Processing by Flotation

 · The Flowsheet for Hematite Benefication Process by Flotation. The above flowsheet has been developed to produce a high grade product economically with maximum recovery. Due to the flexibility of Units and especially the "Sub-A" Flotation Machine, gravity flow can be utilized throughout the mill, thus keeping pumping requirements to a minimum.

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An Overview of Calcite Recovery by Flotation | SpringerLink

 · Ananthapadmanabhan KP, Sumasundaran P (1984) The role of dissolved mineral species in calcite-apatite flotation. Miner Metall Process 1(1):36–42. CAS Google Scholar Andersen JB, El-Mofty SE, Somasundaran S (1991) Using electrophoresis for determining the mechanism of amine, sulfate and oleate adsorption in calcite.

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Wastewater treatment using DAF for process water reuse in ...

Dissolved air flotation (DAF) is a separation process based on the generation of microbubbles ( Santana et al., 2012) and can be used as an alternative for the wastewater treatment for water reuse in apatite flotation. DAF is based on the variation of the air …

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(PDF) Recovery of apatite from flotation tailings ...

The apatite concentration process at Bunge''s fertilizer division produces approximately ten rejects, among them the so-called 2.3. Apparatus and experimental procedure reground reject. The non-floating fraction from the two coarse par- ticle flotation columns passes on to a grinding and classification A special flotation apparatus was ...

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Common Questions About Froth Flotation Process Technology

 · The agglomeration flotation method has been used in the flotation of fine manganese ore, ilmenite and apatite. 7. Selective flocculation and flotation. The method is to use the difference of physical and chemical properties of the fine grains of the medium minerals in the slurry to selectively use some kind of flocculant or some kind of mineral ...

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Mining and Beneficiation of Phosphate Ore | IntechOpen

 · Despite the fact that the flotation of apatite is difficult due to its physicochemical properties being similar to other minerals present in phosphate ores,, the froth flotation is widely used in mineral processing technologies to separate finely ground valuable minerals from a mixture with gangue minerals initially present in a pulp.

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The Impact of Microorganisms of Circulating Water on ...

 · Bacteria Impact on the Process of Apatite‐Nepheline Ore Flotation To study the microorganisms'' impact on the flotation process of pure apatite and calcite minerals and apatite …

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Two-stage reverse flotation process for removal of ...

 · Phosphate rock contains various gangue minerals including silicates and carbonates which need to be reduced in content in order to meet the requirements of the phosphate industry. Froth flotation has become an integral part of phosphate concentration process. In this study, double reverse flotation was applied to recover apatite from phosphate ore. H3PO4 and CaO were used as …

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LKAB produces Apatite from mine waste in a new pilot plant

 · The process has multiple steps, flotation is the key principle applied to separate the apatite from the non-valuable tailings. This process is repeated in several steps to obtain a high purity product with the right specification for further processing.

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Selective flotation of dolomite from apatite using sodium ...

solid/liquid interface. The success of the flotation process lies in obtaining the selective hydrophobic character of the minerals to be separated. The particle bubble attachment and froth stability are also important factors that would influence the efficiency of the flotation process. Apatite and dolomite minerals are both salt type

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Flotation separation of scheelite and apatite by ...

Tungsten is a crucial rare metal with extensive application in modern industries and scheelite is the major resource for tungsten production. In this …

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Wastewater treatment using DAF for process water reuse in ...

Effect of pH on this combined process of wastewater treatment has also been investigated. Removal efficiencies of calcium, magnesium, and phosphate ions and also turbidity have been measured. Water from a tailing dam of an apatite processing industry has been treated by this technique and the produced water used in the flotation of apatite in ...

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Flotation tests with a mix of two natural oils as apatite ...

Apatite is the most common phosphate mineral [Ca 5 (Cl, F, OH)(PO 4) 3] and the main raw material to produce fertilizers based on phosphorus. The achievement of P 2 O 5 grade required to the next steps of purification processes (wet chemical methods) is performed through direct anionic flotation process in Brazil''s ore beneficiation plants ...

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Formation and properties of dispersive flotation systems ...

1. The velocity and selectivity of mineral flotation from ores depends markedly on the formation of the optimum volume of flocculated-structure foam in the cell. 2. When flocculated foams are formed in basic flotation without further purification operations, it is possible to obtain apatite concentrates with 39.4% P2O5 at 85–88% extraction; coarsely crushed ores largely promote the formation ...

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Separating Dolomite & Apatite by Flotation

 · Thus, flotation tests were also conducted with feed composition of 95:5 apatite:dolomite mixture. The results reported in Figure 4 indicate that effective separation of dolomite as a minor mineral, is also possible by flotation after two-stage conditioning.

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Flotation Separation of Apatite From Dolomite Using ...

Conventional flotation scheme is not successful for separation of dolomite from its mixture with apatite. Several processing methods utilizing both anionic and cationic collectors have been proposed to solve this problem, but they have yet to be tested on a commercial scale.

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Improving flotation separation of apatite from dolomite ...

 · In the apatite flotation process, carbonate minerals especially magnesium-bearing dolomite are easy to enter into apatite concentrates, reducing the quality of concentrate products and causing excessive acid consumption in downstream processing. Thus, it is necessary to develop or improve separating methods for efficiently removing carbonate ...

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The impact of bacteria of circulating water on apatite ...

It is shown that bacteria deteriorate the floatability of apatite due to their interaction with active centres of calcium-containing minerals and intense flocculation, resulting in a decrease of the flotation process selectivity thus deteriorating the quality of concentrate.

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DEFINITION THE TECHNOLOGY METHOD OF APATITE …

process of preparing the low-grade phosphate ore for obtaining the phosphate concentrate using the flotation concentration. The apatite concentrates are obtained using the selective flotation from the silicate and oxide minerals while defining the process of selective flotation of apatite from carbonate deposits is the major problem worldwide.

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EXPERIMENTAL DESIGN TO OPTIMIZE BASF''S COLLECTOR ...

 · Mining Solutions Material and Methods 11 Flotation tests performance were based on the P2O5 content and apatite recovery by spectrophotometry at 420 nm. The results of the two-level factorial experiment were treated in Minitab to verify effects and optimize process conditions.

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(PDF) Influence of particle size and reagent dosage on the ...

In this work, the performance of the apatite flotation process The ore consisted mainly of 25.47% CaO, 25.27% SiO2, 19.69% was evaluated based on two responses: P2 O5 grade (ˆy1 ) and P2 O5 P2 O5 and 10.35% Fe2 O3 in the coarsest particle size range and recovery (ˆy2 ) in the concentrate.

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Calcite-Apatite Flotation

of supernatants of calcite and apatite on apatite flotation are due to carbonate and phosphate species respectively. DISCUSSION Flotation being the result of adsorption of collector on the mineral surface during conditioning, any process that iner-teres or minimizes such adsorption can lead to a decrease in

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Effects of Metal Ions on the Flotation of Apatite ...

Currently, more than 60% of the world''s marketable phosphate is upgraded by the flotation process [].Fatty acids are commonly used as anionic collectors in phosphate flotation but their use is sensitive to the metal ions [5,11].Santos et al. [] reported that calcium and magnesium ions contributed significantly to the decline of apatite recovery and P 2 O 5 grade.

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