An HGA-LSTM-Based Intelligent Model for Ore Pulp …
This study focused on the intelligent model for ore pulp density in the hydrometallurgical process. However, owing to the limitations of existing instruments and devices, the feed ore pulp …
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The critical importance of pulp concentration on the flotation …
The lead–zinc ore was supplied by Nanjing Yinmao Lead-zinc Mining Co., Ltd., China. The ore is of low lead grade (approximately 1.3%). The results of the chemical analysis are shown in Table 1.A quantitative mineralogy determination using X-ray powder diffraction (XRD) and mineral liberation analyzer (MLA) were done by the analytical …
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Effect of pH, iron concentration, and pulp density on the
The solubilization of uranium from a finely ground ore material was investigated in leaching tests each lasting for about 24 h. Ferric iron, added as Fe 2 (SO 4) 3 or produced by prior microbiological oxidation of FeSO 4, accelerated the rates of uranium leaching, as compared with those obtained with sulfuric acid or acidic ferrous …
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Utilization of Iron Ore Slimes: A Future Prospective
The process variables used to attain the optimum condition of desliming include the spigot opening, the feed pressure, and the diameter of the vortex finder maintaining the pulp density at 10% solid. The deslimed sample was treated by different techniques including an enhanced gravity separator to achieve iron concentrate with …
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Minerals | Free Full-Text | The Critical Role of Pulp Density …
As the pulp density reached 30 wt %, the values increased from 0 Pa in the single sulfide ore to 0.659 Pa in the ore-serpentine mixture (1:1). Apparent viscosity values of the mixture in Figure 3 c were located between the ore and the serpentine ( Figure 2 c) and increased steadily throughout the pulp density.
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Utilisation of ultrasonic treatment for upgrading of …
For every individual iron ore, it will most likely be necessary to optimise the different parameters of ultrasonic exposure (e.g. power, time and pulp density) in order to achieve the best outcome. Our experimental results indicate that the efficiency of ultrasonic treatment significantly decreases after a threshold reaction time.
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Ball Mill
Equipment description. The circuit studied is processing iron ore. The ball mill dimensions are 4.8 x 11.75 m. The latter is filled with 30 mm balls. It is equipped with an overflow discharge and ...
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Froth Flotation of Iron Ores
The hydrolyzable cations in iron ore flotation pulp are normally calcium, magnesium and iron. ... Correlation of contact angles, adsorption density, zeta potentials and flotation rate. Trans. AIME 208, 1365-1367. [21] Iwasaki, I., Cooke, S.R.B., Choi, H.S., 1960. Flotation characteristics of hematite, goethite and activated quartz with 18 ...
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Towards a Sustainable and Enhanced Iron Ore Recovery: Bio …
Iron ore is essential in steel making; however, high-grade ores have diminished, making low-grade ores inevitable. These low-grade iron ores need further beneficiation to upgrade the iron content. ... Results revealed that at a pH of 1.8, pulp density of 15%, and operating temperature of 33 °C, bio-leaching yielded 80.05% of iron …
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Pulp Formulas & Metallurgical Formulas
Definitions. "Pulp," in flotation terminology, is a freely-flowing mixture of powdered ore and water. "Pulp density," when the phrase is applied properly, indicates the specific gravity of the pulp. "Percentage of solids" means the ratio, expressed as a percentage, of the weight of the solids in a pulp to the total weight of pulp.
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Temperature Variation Characteristics and Model …
The test samples were the overflow tailings of the iron ore cyclone classification of a concentrator in Tangshan. The samples were sampled by fractional sampling, and three representative samples were tested by ZSX Primus II X-ray fluorescence spectrometer. ... density, pulp density and viscosity, resistance …
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Effect of Ore Pulp Density and pH Value on Silica in Iron Ore
Abstract Froth Flotation is viewed as the most broadly utilised strategy for mineral beneficiation. In metal beneficiation, buoyancy is a procedure in which essential minerals are isolat
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Investigation of iron ore density using γ-ray absorption
pulp density. In Fig. 1 is shown a schematic diagram of an experimental arrangement similar to an industrial spiral separation system used for enriching iron ores. The pump 1 forces the pulp of the ore being enriched into pipe …
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Basic Principles & Variables Affecting Froth …
The effect of slurry density. The percentage of solids in the pulp affects the character of oil necessary in a way similar to that in which it is affected by the degree of pulverization of the ore. A low percentage of …
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Pulp Density
The maximum 'pulp density' is usually about 50% solids by weight; above that level small fluctuations in density will seriously affect separation. A coneshaped discharge of …
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Bioleaching of iron from laterite soil using an isolated
3.3 Effect of pulp density. Fig 3 represents the iron dissolution rate at different pulp densities. Mousavi and team (2005) found the reduction in copper bioleaching on increase in pulp density from 10% to 20% and claims at high pulp density the oxygen supply is limited due to gas liquid mass transfer rendering death of microbial cells.
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Gravity separation of fine itabirite iron ore using the Reflux
Again, the channel spacing was fixed at 1.8 mm, the feed pulp density fixed at 27 % solids (close to the target of 26 %), and the fluidization rate remained at 0.14 L/min. The feed pulp density was then varied in the next two experiments, set at 36 wt% solids and then 16 wt% solids, with the density set point at 2000 kg/m 3. All other settings ...
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Basic Principles & Variables Affecting Froth Flotation
The effect of slurry density. The percentage of solids in the pulp affects the character of oil necessary in a way similar to that in which it is affected by the degree of pulverization of the ore. A low percentage of solids in a pulp ground to a given degree of fineness means a greater distance between individual particles.
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Comparative Studies on Settling,Pulp Density, Settling …
The above effect is also manifested when the pulp density is 15% (Fig.2) and 20% (Fig..3). (Fig..4) shows the effect of various type of synthesized and commercial flocculants on the settling rates of iron ore slimes at …
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Characterization and Beneficiation of Dry Iron Ore
Layer 5 tends to have low-density iron ore particles whereas layer 1 has high-density particles. MDS result indicates that jigging process is vital to separate 59% of the screen oversize material as concentrate. ... Lower feed pulp density decreases the viscosity of the system as a result light fine particles are not affected from hindered ...
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Wet low intensity magnetic separators
Optimum pulp density range is 25 to 35 % solids by weight. Counter-rotation Design (CR) The counter-rotation tank features: ... Iron ore separation 8 000 – (15 000) 100 – 160 200 – 350 Concurrent Coarse (Cobbing) 0 – 10% Counter-rotation Iron ore separation 2 000 – 5 000 80 – 120 200 – 350 Counter-rotation ...
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A rheological study of the bioleaching process of an iron ore …
Samples of iron ore concentrate from Monclova, Coahuila, México, contained hematite and magnetite, zinc and copper sulfides in the form of inclusions or associated with calcium carbonates, silicates and complex iron oxides with magnesium and ferrites. ... (pulp density of 30%) to complete 7 L of volume, with concentrate powder and …
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(PDF) The Critical Role of Pulp Density on Flotation …
The results revealed that rheology, which is caused by pulp density, played a key role in flotation performance. The decline in density (from 40 wt % to 20 wt %) increased the nickel and...
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Minerals | Free Full-Text | The Critical Role of Pulp …
The results revealed that rheology, which is caused by pulp density, played a key role in flotation performance. The decline in density (from 40 wt % to 20 wt %) increased the nickel and copper recoveries …
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Combined Effect of Operating Parameters on …
The highest kinetic constant was 0.0756 s −1, which was associated with the pulp density of 35% solids content and collector and frother dosages of 40 and 20 g/t, …
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An HGA-LSTM-Based Intelligent Model for Ore Pulp …
An HGA-LSTM-Based. Abstract: This study focused on the intelligent model for ore pulp density in the hydrometallurgical process. However, owing to the limitations of existing instruments and devices, the feed ore pulp density of thickener, a key hydrometallurgical equipment, cannot be accurately measured online.
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Slurry Densities
Iron ore: 4.90: Iron sands: 1.90: Limestone: 2.70: 60 - 65: 36 - 41: Magnetite: 4.90: 60 - 65: 23 - 27: Sand: 2.65: 43: 23 - 30
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Study on Pulp Grade of Iron Ore Concentrate by Monte Carlo
I n the simulation, the density of the iron ore concentrate is 2.3 g/cm 3, and the volume o f water is 500 cm 3, then the density of the sample is 1.65 g/cm 3 .
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Characterization and Beneficiation of Dry Iron Ore
Several tests were carried out by varying the operating parameter slurry pulp density and keeping the other parameters constant (Ball mill rpm 75, charge …
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DQGSDUWLFOHVL]HRQLQGLUHFW Sulawesi Limonite …
the experiment was pulp density and particle size of nickel laterite ore. Samples were taken at 3, 7, 10, 14, and 17 minutes and then filtered and diluted to be analyzed using ICP-AES. The result of the experiment showed the maximum recovery of metals increase with the decrease of the pulp density.
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