Fine particle flotation for Florida dolomitic phosphate …
Fine Particle Flotation for Florida Dolomitic Phosphate Pebbles Zhengxing Gu . A Florida dolomitic phosphate pebble sample was processed using a 1.2 liter stirrer-tank flotation cell and 2-in ID …
اقرأ أكثر
Flotation Separation of Dolomite from Fluorapatite Using …
As for the single mineral flotation, the procedure was described as follows: firstly, 2 g of fluorapatite/dolomite was added in the flotation cell with 50 mL pure water, and then stirred 2 min for dispersion. After that the regulator (HCl/NaOH) was added to adjust the pH to desired value with an interval of 2 min.
اقرأ أكثر
Correlation of homogenization effect with flotation …
A 500 ml mechanical flotation cell was employed to perform the flotation tests of the mixed sample. ... Oxidation decreases the separation efficiency between pyrite and dolomite. Flotation tests suggested that when the sulfur oxidation rate is less than 5.1 %, it has little effect on the separation between pyrite and dolomite, whereas, pyrite ...
اقرأ أكثر
Effects of sulfation on the flotation capacity of oleic acid in …
The sulfation is an efficient method to improve the flotation capacity of HOL for dolomite. Dolomite could be floated efficiently by 5 × 10 −3 mol/L of the sulfating collector in H 2 SO 4 solution (pH 4.5). The contact angle of the H 2 SO 4-treated dolomite reached 42° with 5 × 10 −3 mol/L of sulfating reagent. The solubility of the ...
اقرأ أكثر
Effects of sulfation on the flotation capacity of oleic acid in …
The sulfation is an efficient method to improve the flotation capacity of HOL for dolomite. Dolomite could be floated efficiently by 5 × 10 −3 mol/L of the sulfating collector in H 2 SO 4 solution (pH 4.5). The contact angle of the H 2 SO 4-treated dolomite reached 42° with 5 …
اقرأ أكثر
Interaction and Inhibition Mechanism of Sulfuric Acid with
In order to study the selective inhibition mechanism of H 2 SO 4 in phosphorite flotation, molecular dynamics simulations (MDSs) were conducted to investigate the interaction between H 2 SO 4 and fluorapatite and dolomite at the atomic–molecular level.
اقرأ أكثر
Experimental and simulation study on the flotation …
The flotation method is the main technique for recovering smithsonite [8].Currently, sulfidization-amine flotation method can efficiently recover smithsonite [9], [10], [11], but it has not been widely applied due to the limitations of flotation caused by the influence of slurry and soluble salts [12], [13].The sulfidization-xanthate method has low recovery of smithsonite due to the ...
اقرأ أكثر
The Effect of Oleic Acid Emulsification using SPE on Fluorite …
The Effect of Oleic Acid Emulsification using SPE on Fluorite and Dolomite Flotation ** ... China with a 40 mL plexiglass cell at an impeller speed of 1800 rpm. In single mineral flotation experiments, 2 g single mineral samples were added into the flotation cell containing 35 mL of DI water and the pulp was conditioned for 1 min. A desired pH ...
اقرأ أكثر
Study on the Reverse Flotation Separation of …
Dolomite, a prominent calcium-bearing gangue mineral found in carbonate-type zinc oxide ores, poses a significant challenge for effective flotation separation alongside smithsonite due to their highly similar surface properties.
اقرأ أكثر
Flotation Separation of Magnesite from Dolomite Using …
flotation cell with 40 mL of deionized water. NaOH or HCl was first added to adjust the pH value of the mineral suspensions. The depressant and collector were added in sequence and agitated for 3 min each. Each flotation time was also 3 min. Froth products and tailings were collected, filtered, dried, and weighed to calculate the flotation recovery
اقرأ أكثر
Fine particle flotation for Florida dolomitic phosphate …
Fine Particle Flotation for Florida Dolomitic Phosphate Pebbles Zhengxing Gu . A Florida dolomitic phosphate pebble sample was processed using a 1.2 liter stirrer-tank flotation cell and 2-in ID packed flotation column aiming at achieving a phosphate concentrate containing more than 30% P. 2. O. 5. and less than 1.0% MgO contents at high P. 2 ...
اقرأ أكثر
MgO Dolomite Flotation
A selective dolomite flotation process has recently been developed at the University of Florida whereby a two stage conditioning technique is utilized to. ... Flotation tests were carried out in a Denver model D-12 1.25 liter laboratory flotation cell using between 100 and 600 grams of sample for each test, depending on the pulp density desired ...
اقرأ أكثر
Interaction and Inhibition Mechanism of Sulfuric …
In order to study the selective inhibition mechanism of H 2 SO 4 in phosphorite flotation, molecular dynamics simulations (MDSs) were conducted to investigate the interaction between H 2 SO 4 and fluorapatite and dolomite at …
اقرأ أكثر
Enhanced Flotation of Dolomite Particles by Grinding with …
In reverse flotation for removal of dolomite, tests confirm that the products obtained from grinding with short cylinders exhibit a higher flotation recovery of dolomite compared to those obtained from ball grinding. ... The resulting mixture was then transferred to a 40 mL flotation cell and stirred for 1 min. The pH of the slurry was adjusted ...
اقرأ أكثر
Selective depression by using environment-friendly …
As a commonly non-metallic element, phosphorus plays a pivotal role in living cells and is widely used in agriculture and medicine engineering (Feng et al., 2022, ... Fig. 4 shows the effect of pH on apatite and dolomite flotation recovery with respect to the pulp pH at 7.5 × 10 −5 mol/L NaOL in the absence and presence of pectin. In the ...
اقرأ أكثر
Mechanism of calcium lignosulfonate in apatite and …
ference in recovery between dolomite and apatite indicates that calcium lignosulfonate can separate dolomite and apatite. Flotation separation test of artificial mixed ore of dolo-mite and …
اقرأ أكثر
Mechanism of calcium lignosulfonate in apatite and …
ference in recovery between dolomite and apatite indicates that calcium lignosulfonate can separate dolomite and apatite. Flotation separation test of artificial mixed ore of dolo-mite and apatite is carried out. Flotation results of mixed ore before and after the use of calcium lignosulfonate are shown Dolomite)
اقرأ أكثر
Insight into the inhibition mechanism of carboxymethyl …
In this study, carboxymethyl cellulose (CMC) was introduced as a depressant for flotation of dolomite and fluorapatite, the adsorption mechanism of CMC on the mineral …
اقرأ أكثر
Flotation of Dolomite from Apatite
Flotation of Dolomite from Apatite Yanfei Chen, Qiming Feng, Guofan Zhang *, Dezhi Liu and Runzhe Liu ... 2.0 g of pure mineral was placed in the flotation cell with 35 mL deionized water and then conditioned for 1 min. NaPP and NaOL were successively added and stirred for 3 …
اقرأ أكثر
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 …
اقرأ أكثر
Removal of dolomite and potassium feldspar from apatite …
The flotation tests showed that dolomite and potassium feldspar can be successfully removed from apatite simultaneously when the molar ratio of DTAB to NaOL was 2:1 with pH 4.5. Zeta-potential and microcalorimetry detection suggested that NaOL and DTAB were adsorbed on the surface of dolomite and potassium feldspar respectively, and part of ...
اقرأ أكثر
Coarse particle flotation: A review
In the conventional flotation cell, the detachment of particles from the bubbles due to turbulence is the main reason for the decline in the coarse particle recovery (De et al., 2007, Fuerstenau et al., 2007).However, turbulence is imperative in the flotation cell to bring about bubble particle collision, keep particles in suspension, and disperse air flow into fine bubbles.
اقرأ أكثر
Effect and mechanism of dolomite with different size …
Flotation experiments were carried out in a 30 mL flotation cell with impeller speed of 1500 r/min. A 2.0 g sample composed of dolomite and hematite in different proportions by mass according to test design was mixed with 25 mL distilled water in flotation cell for 1 min.
اقرأ أكثر
Effects of ultrasonic treatment on the flotation behavior of …
Simultaneous ultrasonic treatment and flotation improved the flotation separation efficiency of magnesite and dolomite, with the flotation recovery of magnesite concentrate reaching 91.06%. ... treatment (UST). In the test, the ultrasonic frequency was fixed at 40 kHz. Minerals (3 g) were added to a 70 mL flotation cell, and 60 mL of deionized ...
اقرأ أكثر
Study on the Reverse Flotation Separation of Smithsonite from Dolomite
Dolomite, a prominent calcium-bearing gangue mineral found in carbonate-type zinc oxide ores, poses a significant challenge for effective flotation separation alongside smithsonite due to their highly similar surface properties.
اقرأ أكثر
Enhancing selective calcite and dolomite flotation in the …
Nonetheless, the efficient flotation of carbonate-rich phosphate ores is daunting and beneficiation frailties are usually expected, if not encountered (Yang et al., 2021a).Challenges mainly arise from the altered crystalline structure of apatite, characterized with a highly CO 3 2− substituted lattice. Complications might also steam from the presence of multiple gangue …
اقرأ أكثر
Insight into the inhibition mechanism of carboxymethyl …
In this study, carboxymethyl cellulose (CMC) was introduced as a depressant for flotation of dolomite and fluorapatite, the adsorption mechanism of CMC on the mineral surfaces was clarified by DFT calculations, XPS analysis, zeta potential and contact angle measurements.
اقرأ أكثر
MgO Dolomite Flotation
Previous investigations have mainly involved studies on synthetic apatite/dolomite mixtures in a microflotation (Hallimond) cell. The collectors employed were of laboratory …
اقرأ أكثر
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 impurities from a carbonaceous sedimentary phosphate ore.
اقرأ أكثر
MgO Dolomite Flotation
Previous investigations have mainly involved studies on synthetic apatite/dolomite mixtures in a microflotation (Hallimond) cell. The collectors employed were of laboratory reagent grade and flotation was carried out in a deionized water medium.
اقرأ أكثر