Flotation separation of apatite and calcite using gum arabic …
Flotation separation of apatite and calcite has always been difficult because of their similar physiochemical properties. To realize the flotation separation of the two minerals, many inorganic ...
Role of the network structure of illite in apatite flotation
This study achieved a selective separation through evaluating the role of the network structure of illite in apatite flotation, when flotation perform…
Role of the network structure of illite in apatite flotation
This study achieved a selective separation through evaluating the role of the network structure of illite in apatite flotation, when flotation performance could not be manipulated through mainly modifying the pulp rheology.The presence of a complex depressant, acidified sodium silicate (ASS), changed both apatite rheology and illite …
Reagents used in the flotation of phosphate ores: a critical …
Phosphoric acid and derivatives (e.g., diphosphonic acid) is the most widely used depressant in reverse flotation of phosphate ore in order to depress the valuable mineral apatite while sodium silicate and gum arabic are used as depressants for the gangue minerals in direct flotation of the phosphate ores.
Flotation of fine apatitic ore using microbubbles
Conventional flotation devices can be inefficient to selectively recovery fine particles. The effect of process variables on the performance of dissolved air flotation of apatite was studied. The bubbles size distribution of the dissolved air system was measured, with values less than 100 μm. The satisfactory performance requirements for …
Flotation selectivity of novel alkyl dicarboxylate reagents for apatite …
The apatite flotation is supported by the decreased ζ potential indicating surface adsorption, especially in the study at pH 10.5, where there is a good agreement between the flotation and the ζ potential studies.
(PDF) Surface Chemistry and Flotation Behavior of Monazite, Apatite
Surface Chemistry and Flotation Behavior of Monazite, Apatite, Ilmenite, Quartz, Rutile, and Zircon with Octanohydroxamic Acid.
Intensification of fine apatite flotation with microbubble generation
In this work, a novel membrane distributor in a flotation column is developed to generate microbubbles for the flotation of fine apatite particles. A large number of microbubbles are continuously produced by driving gas through the large-area membrane.
Exploration of disodium methylenebis naphthalene …
To address the flotation separation problem between apatite and dolomite, DMNS (disodium methylenebis naphthalene sulfonate) was selected as a depress…
Influence of particle size and reagent dosage on the performance …
Mineral particle size plays a significant role on the flotation process. The flotation performance (grade and recovery) of apatite particles in a complex carbonatite ore from Brazil was ...
Intensification of fine apatite flotation with microbubble …
In this work, a novel membrane distributor in a flotation column is developed to generate microbubbles for the flotation of fine apatite particles. A large number of microbubbles are continuously produced by driving gas through the large-area membrane.
Use of fatty acids with an ethoxylated alcohol for apatite flotation
The aim of the present work was to achieve selective flotation of apatite from fine-grained tailings generated during processing the Kovdor baddeleyite-apatite-magnetite ore using a tall oil fatty acid collector in combination with polyoxyethylene alkyl ether (PAE) as an alternative for nonylphenol ethoxylates.
Flotation of fine apatitic ore using microbubbles
Abstract Optimizing the flotation performance of fine particles has long been a focus of researchers in the area of mineral processing. One of the major …
The effect of various surfactants on fatty acid for …
The green selective flotation of apatite from carbonaceous phosphate ores has gained increased scientific and political interest. In this study, Moroccan unexploited seaweeds biomass, as source ...
Flotation Behavior and Interface Characteristics of Apatite …
Phosphate ore is an important strategic mineral resource. The efficient utilization of phosphate resources faces challenges such as low grade of raw ore and difficulty in discharging gangue minerals. One of the key problems to be solved urgently in the reverse flotation of phosphate ore is the effective depression of apatite. However, …
Nanobubble-Assisted Flotation of Apatite Tailings: Insights on
Selectivity is also markedly dependent on the PSD of feed, and the selectivity of NB flotation is improved significantly by decreasing the feed size. In general, generation of NBs in the presence of a frother leads to higher flotation metallurgical responses than in the presence of a collector.
Applicability of the Suspension Effect in Estimation of …
Abstract By means of determining the suspension effect, the authors studied the change in the surface properties of apatite under the action of reagents and ions present in flotation pulp during processing of apatite-bearing ore. It is shown that the ratio of acid–base centers of apatite surface change in interaction with ions HCO $$_3^-$$, …
Improved Flotation Separation of Apatite from Calcite with
The X-ray photoelectron spectroscopy analysis shows that the selective chemisorption of BHA on apatite over calcite is due to the stronger reactivity and the …
Nanobubble-Assisted Flotation of Apatite Tailings: Insights …
This article indicates that the introduction of submicron bubbles (known as nanobubbles, "NBs") to conventional flotation could improve the separation efficiency of …
Selective flotation of calcite and dolomite from apatite …
Flotation tests conducted on a sedimentary phosphate ore have affirmed the applicability of the castor oil derived collector in calcite and dolomite flotation (in the presence of phosphoric acid as an apatite depressant).
Wastewater treatment using DAF for process water reuse in apatite flotation
Results of the apatite flotation using recycling water after DAF treatment. Confirmatory experiments of apatite flotation have been performed using different types of water: freshwater, tailing dam water (without treatment) and water treated with DAF in different conditions.
The adsorption mechanism of synergic reagents and its effect on apatite
The usage of synergic reagents plays vital role in the effective flotation of phosphate ore. In this paper, the adsorption mechanism of synergic reagents and its effect on apatite flotation in oleamide-sodium dodecyl benzene sulfonate (SDBS) system were investigated via micro-flotation experiment, Zeta-potential determination, X-ray photo …
Dispersion degree of apatite samples (% transmittance at …
Apatite flotation presents considerable challenges related to selectivity, especially when one takes into consideration the rather loose structure of this family of minerals and the several ...
Assessment of the selective flotation of calcite, apatite and …
Bio-based flotation reagents are of great interest considering their low-cost, abundance, and sustainability. This study evaluates the performance of …
Introduction Of Silica Sand Flotation Separation Process
3. Flotation separation of apatite minerals and silica sand. Phosphate minerals in quartz sand generally exist in the form of apatite. The surface dissolution of apatite in the flotation slurry will change the surface properties of the mineral and the chemical environment of the flotation slurry.
The selective flotation separation of apatite from dolomite …
In the positive flotation of apatite, the ideal scenario involves the selective adsorptions of collectors on apatite surface, thereby enhancing its hydrophobicity and the disparity in the hydrophobicities between apatite and its associated carbonate gangue minerals like dolomite and calcite.
Effect and mechanism of phosphoric acid in the apatite…
Mico-flotation results showed that IDS selectively depressed dolomite but hardly affected apatite flotation, improving the separation efficiency and upgrading the quality of apatite concentrates ...
A Collector Promoter for Apatite Flotation in the …
In case of igneous phosphate ores, direct anionic flotation is the most applied method to promote the separation between silicate minerals and apatite, and the collectors traditionally used are fatty acids, …
Apatite Flotation Kinetics with Conventional and New …
In the present work compared flotation kinetics of apatite with four different collecto rs was established. Sodium oleate and rice bran oil were used to represent conventional collectors.
Innovating an amphoteric collector derived from
This paper introduces a novel amphoteric collector, N-dodecyl-β-alanine (DDALA), derived from the molecular structure of dodecylamine, with the incorporation of a propionic acid group.In the study, flotation experiments are undertaken to examine the selectivity of DDALA in apatite flotation.
Apatite enrichment by rare earth elements: A review of the …
The effect of enrichment on surface behaviour is particular important in the flotation of apatite deposits, which often contain significant enrichment with additional elements. As many studies have been conducted on processing unenriched apatite it is useful for research to determine if these flow sheets can be applied to enriched apatite.
New insights into the influence of mineral surface …
This study investigated the influence and mechanisms of anhydrite on apatite flotation through single mineral flotation tests, artificial mixed ore flotation tests, flotation solution chemical simulation, and X-ray photoelectron spectroscopy (XPS). A flotation separation model for anhydrite-rich phosphate rock was developed and …
Apatite flotation using pataua palm tree oil as collector
Most apatite concentrates, essential for the fertilizer industry, are produced using froth flotation, where collectors play a pivotal role. Although vegetable oil-derived surfactants have been ...
Role ofDissolved Mineral Species in Calcite-Apatite …
flotation by the dissolved species isfound to be governed by depletion ofoleate by bulk precipitation, the depression of apatite flotation is caused by the carbonate and phosphate species in the system. Turbidity measurements and a thermodynamic analysis of possible interactions in the system support these considerations. The effect of the
The flotation separation of apatite from dolomite …
The flotation performance of dolomite and apatite in the phosphate (H 3 PO 4) system treated with sodium oleate (NaOl) and GJBW, respectively, was studied and compared.
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.