Depression mechanism of acid for flotation separation of …

Micro flotation tests were conducted in a XFGC flotation machine (Jilin Exploration Machinery Plant, China) with a 40 mL cell. 2.0 g of samples were weighed and placed in the flotation cell, 40 mL of deionized water was added and stirred for 1 min, then 0.1 mol·L −1 H 2 SO 4 or H 3 PO 4 solution was added to adjust the pH value of the pulp ...

Flotation Separation of Dolomite from Fluorapatite Using …

Flotation separation of Mg carbonates from their associated valuable minerals (AVMs) presents several challenges, and Mg carbonates have high levels of adverse effects on separation …

Fine Particle Flotation: Experimental Study and Modelling

Moreover, this electrolysis unit is adapted in a mechanical Denver-type flotation cell. The resulting hybrid flotation device is capable of producing bubbles within a wide range of diameters. ... The dolomite content in the concentrate is about 20%, where 80% of dolomite was removed and importantly 98% of the quartz was removed, with only 0.3% ...

Flotation Separation of Magnesite from Dolomite Using …

Flotation separation of magnesite from dolomite in the presence of SSZS (sodium silicate modified with zinc sulfate) as an inhibitor and NaOL (sodium oleate) as a collector has been studied via ...

Selective flotation of calcite and dolomite from apatite …

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 distinguishing properties between the valuable …

Flotation Separation of Dolomite from …

In this study, sodium dodecyl benzene sulfonate (SDBS), a low-cost and freely soluble reagent under low temperature was used to examine its collecting ability and selectivity in a...

Short CommunicationThe application of poly (sodium 4-styrene sulfonate) as an efficient dolomite depressant in the …

The flotation results demonstrate that SDBS could float both fluorapatite and dolomite, but show a higher affinity towards fluorapatite instead of dolomite. Moreover, SDBS …

Sodium Dodecyl Benzene Sulfonate as the Efficient …

In this study, sodium dodecyl benzene sulfonate (SDBS), a low-cost and freely soluble reagent under low temperature was used to examine its collecting ability and selectivity in a...

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%. ... 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 water was added ...

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 phosphate (H 3 PO 4) …

Flotation Behaviors of Magnesite and Dolomite Using a …

The micro-flotation tests of magnesite and dolomite were carried out in an XFG II type flotation cell with a 40 mL detachable cell and a stirring speed of 1600 rpm. The flotation slurry was prepared by adding a single mineral (2 g) with a particle size of 37–74 μm into 30 mL DI water in the flotation cell and then stirred for 1 min to ...

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 …

The Use of the Jameson Cell to Improve Flotation …

The Jameson Cell is a high intensity flotation cell in which pulp and air are brought together in a co-current descending flow in a vertical tube called the downcomer. The pulp is introduced into the downcomer through a slurry lens orifice to produce a high velocity jet that generates violent mixing and fine bubble size.

Dolomite Efficient Flotation Cell

Efficient flotation recovery of lead and zinc from refractory lead-zinc ores under low alkaline conditions. ... collector and frother were sequentially added into the rougher flotation cell at 2 min intervals, and the flotation time of each stage was determined by different conditions. The froth products were collected with an automatic …

Separation mechanism of apatite and dolomite with flotation …

Based on the physical and chemical properties of phosphate ores, froth flotation is regarded as the most efficient technology for upgrading phosphate ores (Yang et al., 2021).This process is used for approximately 60 % of all phosphate ores worldwide (El-bahi et al., 2023).In low-grade phosphate ores, apatite, the valuable mineral, often coexists with gangue minerals …

(PDF) A Review of Flotation Separation of Mg Carbonates (Dolomite …

Flotation Separation of Dolomite from Magnesite Surface characterizations of dolomite and magnesite indicate that their separation from each other is quite complicated; however, separation can be achieved using flotation at optimum conditions aided by using modifiers along with collectors. pH and mineral dissolution are cardinal for their ...

The interaction mechanism of a novel polymer depressant …

Flaxseed gum was tested as an efficient dolomite depressant in the separation of dolomite from apatite. ... in 70 mL flotation cell. The sample was a mixture of dolomite and apatite with the weight ratio of 1:4. Two grams samples were added into 50 mL ultrapure water and sonicated for 2 min. After the addition of pH regulator, depressant and ...

Adsorption mechanism of green efficient chelating poly-L …

Microflotation tests were conducted on a laboratory-based XFG-II flotation machine with a 40-mL flotation cell, produced by Changchun Exploration Machinery Factory in Jilin Province. For each experiment, 2.0 g of mineral sample and 28 mL of deionized water were poured into the flotation cell [34]. The flotation process includes 1 min of ...

Selective depression by using environment-friendly …

Research on depressants has focused on replacing toxic depressants with nontoxic ones at present (Feng et al., 2019).Natural polysaccharides, such as starch, xanthan gum, cellulose and dextrin, have a depression effect for selectively depressing dolomite flotation (Feng et al., 2020).Pectin, as a high-molecular polysaccharide (its unit molecular structure was …

Correlation of homogenization effect with flotation …

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 recovery decreased from 82 % to 66 %, and dolomite recovery increased from 6 % to 20 % with further ...

Exploration of disodium methylenebis naphthalene …

The flotation method is commonly used for concentrating phosphate minerals and other valuable minerals [21], [22], [23], [24].For the phosphate ore with low-content magnesium minerals (dolomite), reverse flotation was used to remove magnesium minerals using the reagent scheme of acid adjustors/fatty acid collectors [25], [26].During this process, acid adjustors (H 3 …

Enhanced Flotation of Dolomite Particles by …

In the field of mineral processing, the successful flotation of target minerals requires sufficient liberation through grinding. The aim of this paper is to compare and evaluate the performance of ball versus short cylindrical media …

Synergistic Effect of Sodium Dodecyl Benzene …

The synergistic effect of sodium dodecyl benzene sulfonate (SDBS) on the flotation separation of magnesite and dolomite using sodium oleate (NaOL) as a collector has been studied through flotation experiments, zeta potential …

The enhanced flotation separation of magnesite and …

In this paper, the chelating reagent EDTA is introduced to eliminate the adverse influence of calcium species and to restore the selectivity of magnesite-dolomite separation …

Improving separation efficiency of galena flotation using …

The low separation efficiency of traditional mechanical flotation cells for galena flotation primarily was caused by the low collision probability between bubbles and fine particles and high ...

The removal of dolomite from collophane using reverse …

efficient separation of dolomite collophane using reverse flotation process. 2. Materials and methods 2.1. Reagents and materials 2.1.1. Collophane sample The ore sample used in the test was collected from Yichang, Hubei province. The chemical multi-elemental analysis is shown in Table 1. The collophane is mainly composed of CaO (40.85%) and P ...

The flotation separation of apatite from dolomite using a …

Fourier transform infrared spectroscopy (FTIR), zeta potential, flotation solution chemistry calculations, and surface characterization further demonstrated that GJBW may ionize large amounts of RCOO − and H (RCOO) 2− ions in solution, which can be significantly chemisorbed with numerous sites of Ca and Mg exposed to dolomite, forming dense ...

Separating dolomite from phosphate rock by reactive flotation …

dolomite and apatite flotation has been studi ... Trends observed during Hallimond cell tests of single and mixed ... the MgO % to less than 1 % but also increase the efficiency of the subsequent ...

The flotation separation of apatite from dolomite using a …

Micro-flotation results indicated that the addition of P (AA-AMPS) could achieve the efficient separation of apatite from dolomite at pH 8.5 by selectively depressing the dolomite flotation, in ...

Review of the Main Factors Affecting the …

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 …