Phosphate ore is the dominating natural resource for the production of fertilizers and phosphorous chemical products Flotation is the most widely employed technique to enrich apatite and remove the impurities for the separation of the phosphate ore The flotation reagents play an important role in this efficient separation of phosphate ores In the last few decades
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 g of mineral sample and 28 mL of deionized water were poured into the flotation cell [34] The flotation process includes 1 min of
Micro flotation tests were conducted using an XFG laboratory flotation cell Jilin Exploration Machinery Plant China with a volume of approximately 30 mL NaOL appears to cause a significant difference in the recovery of magnesite and dolomite Flotation of % and % of the magnesite and dolomite is obtained at pH which
Over the last few decades conventional fatty acid collectors have consistently demonstrated a high affinity for calcium rich minerals such as apatite calcite and dolomite making them commonly employed in apatite flotation processes [15] [16] However the industrial utilization of fatty acid collectors is constrained by their limited selectivity and inadequate solubility under
The amenability of column flotation for the beneficiation of fluorspar was investigated and the overall performance of the column flotation was compared to the performance of the existing conventional flotation cells at the plant It was established that improved grades and recoveries could be obtained by adopting column technology Acidspar concentrates assaying 97% CaF2
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
Sodium polyphosphate SP is a representative phosphate that can integrate metal ions Herein the inhibition effect and mechanism of SP on the flotation of dolomite in the flotation separation of brucite and dolomite were studied in a sodium dodecyl sulfonate SDS flotation system In the flotation test SP exhibited a strong inhibition effect on dolomite flotation
flotation include energy efficiency and more precise control of critical flotation parameters such as bubble size cell air content froth depth and froth cleaning Column flotation cells were found to be amenable to the recovery of high grade CaF 2 from the Fish Creek deposit in Nevada Mc Key et al 1987
Froth flotation is widely used as an effective method for separating apatite from dolomite However it is of difficulty to realize the efficient separation of apatite and dolomite using the
3 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
Pneumatic flotation cells are typically classified as high intensity flotation machines with rapid kinetics resulting in short residence times often half that of mechanical flotation cells and a
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 measurements contact angle measurements Fourier transformation infrared spectroscopy analysis FT IR particle size
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The effects of Ca2 Mg2 Al3 and Fe3 on the flotation behaviors of apatite dolomite and quartz were investigated through a micro flotation test and the influence of calcium ions on the flotation of these minerals was further elucidated by solution chemistry study zeta potential measurement and X ray photoelectron spectroscopy XPS analyses The results
Micro flotation experiments were carried out in an XFG flotation machine Exploring machinery Plant Changchun China equipped with a 40 mL cell at 2000 rpm agitation speed For single mineral tests 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
The micro flotation of dolomite and magnesite was carried out in a laboratory flotation device mechanical agitation with a 30 mL detachable cell and a stirring speed of 1992 rpm The flotation slurry was prepared by adding a single mineral 2 g or artificially mixed minerals g magnesite and g dolomite into 25 mL DI water in the
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
An XFGC Ⅱ laboratory inflatable hanging cell flotation machine produced by the Jilin Exploration Machinery Factory was used for the experiments The aeration mode of the flotation machine was self priming with a 50 mL flotation cell and a fixed spindle speed of 1500 rpm SO 4 2 ions increase the flotation of dolomite from % to 93
Froth flotation has become the most applied beneficiation method for separation and concentrate of valuable minerals from gangue minerals based on different physical and chemical characteristics on different minerals Dong et al 2019 Yang et al 2019 Recently flotation separation has been gradually regarded as the primary method for the removal of
In the past decades traditional fatty acids collectors especially oleate acid and its salts always exhibit strong collecting ability for calcium bearing minerals apatite dolomite and calcite and are usually utilized in apatite flotation [25] [26] However owing to the low selectivity and poor solubility at low temperatures the relevant industrial applications of fatty
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
The flotation tests were conducted using XFG machine manufactured by Wuhan Exploration Machinery Cooperation 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
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