Comparing the two low and high pyritic ore types, it is found that in the high pyritic feed total floated free chalcopyrite decreases by 1.15%, while it is compensated by an increase in CP/PY and ...
Moreover, in order to supplement forces involved in the separation of minerals with surface forces of structural origin in the third flotation stream, the pulp is aerated for a short time (about 15%–25% of the total) with air bubbles filled with a heat carrier, i.e., hot water vapor.
For flotation tests, the Hanönü and Madenköy ore samples were ground in a stainless steel ball mill at a pulp density of 60% by weight for 40 min and 30 min, respectively. d 80 and d 50 particle sizes of Hanönü ore were 28 μm and 17 μm, respectively. ... this value is 0.50 cm in Madenköy copper flotation plant. The bubble …
The effect of pulp density on copper and iron HPL from the concentrate of flotation tailings was investigated under the following conditions: H 2 SO 4 concentration of 0 M and a total pressure of 2.0 MPa at a temperature of 180 °C for 60 min, while varying the pulp density in a range of 100–400 g/L.
2.2. Development of the In-Pulp optical measurement apparatus. The flotation pulp samples were fit into a 10 mm × 10 mm × 45 mm cuvette. The total mass for each sample was about 3 g with the samples split to −38 µm (fines) and + 38 µm (coarse) as the fines and slimes obscured the optical microscopy images when combined.
The effects of flotation parameters including pulp density, collector dosage, frother dosage, and dispersant dosage were statistically examined to obtain an effective approach for concentrating copper minerals.
The optimum solids content of the pulp is 35%, because by increasing the pulp density, more particles report to the concentrate and increase copper recovery …
Effect of pulp density on the flotation rate of nickel minerals in the underflow from the first stage cyclones. The implication was that the components that raised the viscosity, mostly the fibrous material, largely reported to the overflow of the first cyclone stage and that the underflow behaved much more like a conventional pulp.
The flotation time during the stage 1 and stage 2 was kept at 5 and 10 min, respectively, while other parameters such as slurry pH, conditioning time and stirring speed were kept constant at 8, 10% pulp density and 700 r/min, respectively.
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 from 70.7% to 79.5% and 82% to 85.4% ...
To investigate how the flotation was affected by the pulp density of a single mineral and the mixture of sulfide and serpentine, sulfide and serpentine slurries (5 40 wt % of the total solid by
At that pulp density, the culture extracted 60.4% of copper from the chalcopyrite in 25 days. The bacterial and archaeal diversities during adaptation were analyzed by denaturing gradient gel electrophoresis and constructing clone libraries of the 16S rRNA gene. ... Thin-layer heap bioleaching of copper flotation tailings containing …
The great metallic stress and high concentration of flotation reagent resulting from high pulp density also have toxic effects on cells . Although the unadapted culture might be able to grow very slowly at a pulp density of 20%, the copper extraction rate was too far below the requirements for industrial application. Therefore, stepwise ...
Factors affecting flotation of water-quenched slag from a copper smelting plant in Hubei province,such as grinding fineness,pulp density,pH value and the reagent system,were studied.The results indicate that the best flotation efficiency was obtained with a grinding fineness of 95%-0.074 mm,a pulp density of 30%,a pH value of 7.0 and reagent …
In a different study, Wang et al. examined the effect of different cations (Na +, K +, Mg 2+, and Ca 2+) on pulp viscosity and copper flotation behaviour and found that these cations could effectively decrease the pulp viscosity, which contributed to an improved copper flotation recovery. These studies have experimentally confirmed the ...
Considering copper recovery, concentrate collection time, collector dosage, and pulp density were the most significant variables, in decreasing order of importance. Also, the …
In the pulp zone of a flotation cell, a high pulp viscosity can result in increased turbulence damping, poor gas dispersion, a reduced mobility of particles and mineralised bubbles, and a low particle-bubble collision efficiency (Shabalala et al., 2011, Becker et al., 2013). All of these factors can lead to a reduced flotation efficiency.
Effective purification of graphite via low pulp density flotation-low temperature alkali roasting-acid leaching route: From laboratory-scale to pilot-scale. 2022, Minerals Engineering ... The effect of amorphous silica on pulp rheology and copper flotation. Minerals Engineering, Volume 113, 2017, pp. 41-46.
This is an overview of setting up and conducting a flotation rate test. The test is a means of determining the flotation characteristics of an ore. ... The 2.5 L cell has an operating volume of about 2 L and takes …
A nickel-copper sulfide system usually coexists with serpentine in deposits. Low nickel-copper recovery and high content of serpentine in concentration adversely affects subsequent metallurgical processes. In this study, test data showed different rheological results at various densities. When the solid ratio of sulfide to serpentine was …
Conventional and electrochemical (bio)-leaching were explored to extract copper from Sarcheshmeh chalcopyrite flotation concentrate at high pulp density using a mixed culture of moderately thermophilic bacteria adapted to 20% (w/v) pulp density. Leaching of copper was found to be most efficient during bioleaching with the ORP …
The general rules as flow: (1) Pulp Density. The mineral with large flotation density uses a thicker slurry, while the mineral with a small flotation density uses a thinner slurry. ... zinc froth flotation, copper flotation, ore flotation. Since the content of useful components in the ore that needs flotation treatment is getting lower and ...
The main factors affecting the flotation process include ore properties (mineral composition, size distribution, particle shape, floatability of minerals, etc.), flotation process (workflow configuration, reagent system, pulp density and temperature, etc.), operating factors, characteristics of flotation machine, etc.
AMA Style. Gao Y, Zhang G, Wang M, Liu D. The Critical Role of Pulp Density on Flotation Separation of Nickel-Copper Sulfide from Fine Serpentine.
The effects of flotation parameters including pulp density, collector dosage, frother dosage, and dispersant dosage were statistically examined to obtain an effective approach for...
This study is focused on the froth flotation reprocessing of a copper mineral from flotation tailings. The effects of flotation parameters including pulp density, collector dosage, frother dosage ...
Flocculants are high molecular weight polymers that are mainly employed in solid-liquid separation processes (Garmsiri and Nosrati 2019; Garmsiri and Unesi 2018;Owen, Fawell, and Swift 2007) and ...
The stainless steel ball mill (model: XMQ240ˆ90, Wuhan Rock Crush & Grand Equipment Manufacture Co., Wuhan, China) with stainless steel balls with 38% of solid was used in the laboratory. The mill discharge was transferred to an XFD-1 L flotation cell, and the pulp density of copper slags was adjusted to 33%.
This study is focused on the froth flotation reprocessing of a copper mineral from flotation tailings. The effects of flotation parameters including pulp density, collector dosage, frother dosage ...
