flotation concentrate investigation

gold processing - Mining and concentrating | Britannica

gold processing - gold processing - Mining and concentrating: The nature of the ore deposit determines the mining and mineral processing techniques applied. Oxide ore deposits are frequently of such low grade (e.g., 3 to 10 parts per million) that extensive mineral processing cannot economically be justified. In this case they are merely shattered by explosives and then piled into heaps for ...

Leaching of Flotation Concentrate of Oxide Copper Ore from ...

Abstract: Acid leaching of flotation concentrate of oxide copper ore containing mainly of malachite was performed in a standard agitation tank with various parameters. The effects of solid to liquid ratio, sulfuric acid concentration, agitation speed, leaching temperature and time were examined to …

(PDF) Investigation of Flotation Separation of Elemental ...

In the granulation process of the flotation concentrate is a division of lead sulfate and elemental sulfur, the sulfate lead content in sulphur-sulfide phase is decreased from 28.44 % to 3.5 % ...

Investigation of Flotation Separation of Elemental Sulfur ...

The rectification of the obtained concentrate by flotation did not give acceptable results, since the yield of the foam product in all experiments was 93-96%. For the separation of lead sulphate from sulphur-sulfide concentrate was used in the granulation of sulfur in the following conditions: t = 145 °C, Po2 = 0,0-0,5 MPa, τ = 60 to 120 min.

flotation | ore dressing | Britannica

flotation, in mineral processing, method used to separate and concentrate ores by altering their surfaces to a hydrophobic or hydrophilic condition—that is, the surfaces are either repelled or attracted by water.The flotation process was developed on a commercial scale early in the 20th century to remove very fine mineral particles that formerly had gone to waste in gravity concentration plants.

Effect of high-speed shear flocculation on the flotation ...

Furthermore, six flotation kinetic models, which describe the flotation concentrate recovery in terms of flotation time, were used to fit the experiment data. They are tabulated in Table 1 . The parameters, including the flotation rate constant ( k ), the maximum concentrate recovery ( ε ∞ ), and the correlation coefficient ( R 2 ) of the ...

Investigation into the flotation response of refractory ...

In the investigation, a minimum amount of MD 5 g/t does improve the grade of molybdenum concentrate, but a minimum negative effect appears when the dosage of MD is more than 5 g/t. (5) In the present investigation, the authors have used a combination of reagents (PN, ST and MD) to depress chalcopyrite, pyrite, and galena.

Investigation into flotation properties of new collectors ...

12%Flotation properties of dialkyl dithiophosphates of alkali metals BTF-1552, IMA-206, and IMA-I413 are investigated. Concentration characteristics using the M-TF reactant and its mixture with IMA-I413 and xanthate are evaluated. Based on these investigations, it is established that the application of the mixture of collectors IMA-I413 and butyl xanthate in the ratio 5: 1 with the …

Electrostatic concentration of phosphate flotation concentrate

From the flotation concentrate of about 28.50% P2O5, a higher 2011;21(1):147–51. grade phosphate product of 34.85% P2O5, at 38.94% recovery, or [6] Li G, Liu J, Cao Y, Wang D. Effect of a cyclonic flotation column on the separation 33.41% P2O5 at 84.07% recovery was obtained from single stage of magnesium from phosphate ore.

Investigation on the cyanide leaching optimization for the ...

A laboratory investigation was then initiated, to improve the leaching conditions of the flotation concentrate with the objective of maximizing gold recovery while minimizing processing costs.

Selective Recovery of Graphite from Spent Potlining (SPL ...

Flotation tests were carried out aiming at the maximization of carbon grade and recovery in the concentrate, while minimizing silicon content. The effect of pH, collector, and sodium silicate (depressant) dosage was investigated on two feeds of different granulometry (− 90 μm, 90–420 μm) and optimum conditions were determined.

Minerals | Free Full-Text | Flotation and Tailing ...

Thus, the current investigation introduced mineral liberation analyzer (MLA) [24,25] to study the liberation of minerals or mineral aggregates after primary grinding, and thereby chose the proper recovery object and corresponding liberation degree to promote concentrating efficiency and reduce process costs in primary flotation. For instance ...

(PDF) Investigation of Complex Treatment of the Gold ...

Investigation of Complex Treatment of the Gold-Bearing Antimony Flotation Concentrate October 2018 Diffusion and Defect Data Pt.B: Solid State Phenomena 284:863-869

Investigation on the cyanide leaching optimization for the ...

A laboratory investigation was then initiated, to improve the leaching conditions of the flotation concentrate with the objective of maximizing gold recovery while minimizing processing costs. The concentrate used for the laboratory investigation had the following composition: 41.4 g/t Au, 59.7% pyrite, 0.3% chalcopyrite, 38.2% gangue, and a P ...

Investigation of Complex Treatment of the Gold-Bearing ...

This paper details the hydrometallurgical method of processing of refractory gold antimony flotation concentrate. Investigation of feed material has been occurred. Mineralogical analyses (XRD, SEM-EDS) and chemical analyses of the concentrate have been studied. Mainly, the material consists of compounds of antimony, silicon, calcium, sulfur and iron.

The Importance of %Mass Pull in a Flotation Circuit | What ...

This number needs to be as small as possible to consider the flotation to be selective. Applying the Lab to the Plant: Obviously if of the feed is sent to conc, a recovery is achieved (without concentration). The idea of selective flotation is to "concentrate" and put as much metal in as little a concentrate mass as possible.

Flotation of Low Volatile Coking Coal Fines | SpringerLink

In another investigation with a LVC coal also from eastern flank of Jharia coalfield (Table 2) no flotation concentrate could be obtained at ≤17% ash at 5 s . Analysis of the data presented in Table 2 indicates that about 27% yield could be obtained at 18% ash at a flotation time of less than 10 s.

Treatment of Platinum Flotation Products | Johnson Matthey ...

Based on results of the investigation, the preferred treatment of the flotation concentrate is that shown in the flowsheet, see Figure 2. Fig. 2. Flowsheet showing the treatment of flotation concentrates of low-sulfide platinum-containing ores. Autoclave oxidative leaching ...

7 Factors Affecting Froth Flotation Process - JXSC Machine

(2) Concentrate grade. The general rule is that the concentrate grade is higher when ore flotation is carried out in a leaner slurry, while the concentrate grade is reduced when it is floated in a thicker slurry. (3) The dosage of the agent. The flotation agent should maintain a certain mass fraction in the pulp to have a good flotation effect.

Investigation on Stepped-Flotation Process for Donganshan ...

It consists of first separating the siderite by direct flotation in neutral medium and then separating hematite by indirect flotation. The closed-circuit laboratory test results show that an iron concentrate grading 66.34% iron with an iron recovery of 71.6% can be obtained from a flotation feed grading 52.3% by stepped flotation process.

An investigation onthe surface chemistry of some rare ...

oxide to a flotation concentrate (Cox et al., 2010). In flotation separation, surface chemistry is the principle determinant for selective separation of the various minerals. For that reason, understanding of the factors operating on the surface of REE minerals will …

An investigation on flotation process of low-grade

An investigation on flotation process of low-grade Niobium/Tantalum ore Willie Nheta, Brian Ruwizhi ... The highest total Nb-Ta recovery of the concentrate was achieved on the flotation of the 80%-75µm size sample with recoveries of Nb and Ta being 74.61% and 74.80% respectively. Recoveries of Nb and Ta decreased with

Flotation - Mineral Processing & Metallurgy

flotation, concentrate filtration, and; tailing disposal sections. In the crushing section of the plant the ore from the mine is broken down to about 3/8-in. size in two or three stages without the use of water except as a spray to remove dust, this being the economical limit of dry crushing machinery in modern practice. ...

RECOVERING MERCURY FROM CINNABAR-STIBNITE ORE BY …

laboratory flotation circuit recovered 95.7 percent of the mercury and 82.6 percent of the antimony in a concentrate that assayed 20.4 percent Hg and 34.6 percent Sb. Because preliminary testing had indicated that close control of temperature and atmosphere was necessary for selective roasting of cinnabar-stibnite concentrate, a

IJMMME - Flotation of lithium ores to obtain high-grade ...

The concentrate of spodumene flotation (Test A) was analyzed by XRD indicating the existence of albite and quartz in the spodumene concentrate (Figure 12). Applying the Rietveld Refinement, it was possible to quantify the main minerals present in the concentrate: 59.7 …

Recovery of Platinum, Palladium, and Gold From Stillwater ...

Report of Investigations 8970 Recovery of Platinum, Palladium, and Gold From Stillwater Complex Flotation Concentrate by a Roasting-Leaching Procedure By E. G. Baglin, J. M. Gomes, T. G. Carnahan, and J. M. Snider UNITED STATES DEPARTMENT OF THE INTERIOR

Synergistic Effect of DBP with CTAB on Flotation ...

Collophane is difficult to upgrade by reverse flotation of quartz with amine collector alone due to its low grade, complex structure, fine dissemination grain size, etc. This investigation was conducted to explore the synergistic effect of dibutyl phthalate (DBP) as a surfactant with cetyltrimethyl ammonium bromide (CTAB) as the collector on the separation of quartz from collophane by means of ...

Froth Flotation Circuit Design And Basic Testwork ...

Geohazard Investigation Mine Ventilation. Ventilation Engineering ... to a predetermined liberation size and then subjected to two or three stages of cleaner flotation to produce a final flotation concentrate. Cleaner flotation tailings is an intermediate product and is recycled within the flotation circuit.