Density of the particle must be greater than that of the fluid, which is confirmed in literature [26]. A study carried out by Mehrotra and Kapur [27] indicates that the lower the pulp density, the higher the flotation ratio, and therefore, the higher mineral concentrate. Other studies show that the pulp density …
Flotation of copper sulphides assisted by high intensity conditioning (HIC) and concentrate recirculation ... forces associated with turbulence and shear in the pulp, lead to an increase in the rate of detachment. Thus as the particle size in- ... it also was the least affected by pulp density variations and imperfect size classification Firth ...
Pulp Density Temperature Flotation System . 2 these factors into account in froth flotation operations. Changes in the settings of one factor (such ... Problem: A copper ore initially contains 2.09% Cu. After carrying out a froth flotation separation, the products are as shown in Table 1. Using this data, calculate:
depressing copper and iron sulfides (Wills, 1997). In addition, it should be noted that conditioning time, pulp density, and reagent additions are the most important parameters in the separation of copper-molybdenum (Bulatovic, 2007). The floatability of molybdenum in porphyry copper ores depends on …
The gold flotation principle is: high density flotation and coarse grained minerals often use the thick pulp; conversely, for the flotation of small density and fine grain size, thin pulp should ...
Variables that are subject to control include grinding factors such as fineness of grind, pulp density, type of grinding medium, and chemical additives; conditioning factors such as collectors, depressants, pH, time, intensity, and temperature; and flotation factors such as
Finally, in the third stage of the flotation tests, different pulp It is known that aluminosilicate minerals adversely affect the densities were examined to evaluate their effect on Al2O3, SiO2, flotation of copper sulfides in the Sarcheshmeh flotation plant; Mo, and Cu (%) assay and the recovery of the flotation concentrate. the maximum ...
flotation performance and ore quality the negative effect of the clay minerals on flotation should be identified. The presence of clay minerals leads to problems, such as changing the froth stability, which are related to swelling behaviour, increase in pulp viscosity, overconsumption of reagents, slime coating and mechanical entrainment.
Dec 20, 2018· The most suitable ore pulp concentration during the flotation process is related to the ore property and the flotation processing conditions. 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.
on Flotation To determine the effects of pulp pH on the flotation recovery of the pyrite mineral, representative subsamples were conditioned and floated at pH 4, 6.4, 8, 9.2 and 11. Conditioning of the pulp was carried out at the set pH and allowed 5 mins to …
1. On the basis of mineral character such as grade, PH, density, size, pulp, etc. when mineral be chose easy and require less air-flow rate, it's suit to use mixing flotation machine, otherwise, consider choosing inflatable flotation. In this case...
Foregoing studies suggested that in order to decrease the amount of misreported CP/G, flotation can be carried out in lower pulp density (below 28 wt. %), which can improve grade and recovery of copper and declines gangue minerals flotation [56].
The average copper and iron recovery obtained was from 60% to 70% and from 2% to 3%, respectively. These results indicate that the old flotation tailings pond represents an important source of secondary raw material for the extraction of copper and that it should be valorized rather than land reclamation. At the end of the paper, a mechanism of ...
Feb 15, 2018· Quite simply stated, if the pulp density is not maintained at 30% or higher by weight, it is very difficult to keep the coarser free gold into the froth phase. Copper sulfate is often used as an activator for promoting free gold flotation.
In yet another bioleaching of the above copper smelter slag using an enrichment culture containing A. ferrooxidans, A. thiooxidans, A. caldus, Leptospirillum ferrooxidans, and Sulfobacillus thermotolerans in a continuous stirred tank reactor for 29 days at 5% pulp density, 41% Fe, 62% Cu, 35% Zn, and 44% Ni could be solubilized. Using an ...
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 from 70.7% to 79.5% and 82% to 85.4% respectively in the artificial mixture (1:1).
Read more what should be pulp density in flotation of copper. 1 Froth Flotation – Fundamental Principles. This tells us that the concentrate has 9.57 times the copper concentration of the feed. 1.1.1 Grade/Recovery Curves While each of these single calculated values are useful for comparing flotation performance for different conditions, it ...
Nov 01, 2019· When the particle size of ore particle size is less than 0.01mm, the flotation index will deteriorate significantly. It is suggested that suitable grinding fineness should be determined by ore dressing test and production practice data. 2. Flotation Pulp Density. Pulp concentration is one of the main factors affecting the flotation index.
Feb 06, 2020· As the common mineral processing process, the froth flotation process is widely used in the concentrator. Because the froth flotation process is strict with grinding fineness, pulp density, flotation reagent, the flotation plant operators must inspect the flotation conditions during the operation of the flotation machine.
Pulp density can be measured using a Marcy Density of nuclear density gauge. The solids concentration can be estimated using a common expression or directly measured. Pulp Density. Density (ρ) is the ratio of the mass weight (M) of a substance and the total volume (V): Water has a density of: 1.0gm/ml or 1.0gm/cm 3; 1000kg/m 3 – 1tonne/m ...
In mineral flotation, rheological problems have limited the efficient upgrading of low-grade and complex ores. Since pulp and froth rheology are deemed to play different roles in influencing the separation performance, in this paper, a brief review on pulp and froth rheology in flotation is provided, with an objective of developing a basic understanding of rheology in flotation.
A comparison of daily full monitoring parameters of copper slag flotation (pulp density, the grinding, the alkalinity of the pulp, the pH of the circulating water, the consumption of reagents) revealed a significant correlation between the indicators of enrichment of copper slag alkalinity of the pulp
A labtech Essa flotation machine with 2.5 liters cell was used for 1kg sample feed at a pulp density of 32% solids. The first stage involved the flotation of sulfide minerals (analyzed as Acid Insoluble Copper-AICu), 50 g/t of Sodium Isobutyl Xanthate (SIBX) Collector and 20 g/t Aero froth 68 frother were added and conditioned for 2 minutes.
Apr 17, 2019· 2. Follow the change of ore properties and adjust the pH value in time to obtain better flotation indexes. For example, in the process of copper-nickel mixed flotation, the pH value is adjusted to obtain the maximum possible recovery rate. In the mixing and dosing process, the pulp with suitable concentration should be prepared for the next ...
Jul 08, 2011· The resultant high organic content of the pulp can be deleterious to copper mineral flotation, depending on the flotation conditions used and the type of timber present. Selby and Woodcock (1977) reported the results of a flotation study on chalcopyrite ores from three Australian copper mines where the effects on flotation of the addition of ...
Jul 26, 2018· The effect of pulp density was À0,09 for a variation of 5%; This observation (also shown in Fig. 2a) indicates that reducing the pulp density lead to an increase in the copper grade in the ...
Study on Flotation Technique to Recycle Copper from Tailings ... CGF-40 flotation cell, copper ore, ... the density of feeding pulp is about. pulp density in froth flotation process for copper Grinding ... Grade/recovery performance of a hypothetical copper ore flotation process. in the froth flotation process, ... What should be pulp density ...
Nov 04, 2013· Flotation Developments & Best Practice. Posted by Matrix on 4th November 2013. Prof Graeme Jameson is a nominee in the International Mining Technology Hall of Fame and his Jameson cell, marketed by Xstrata Technology, offers, among other advantages, high production in a small footprint and high concentrate grades.