flotation copper dosage

Figure 3 Copper recovery in flotation with distilled water as a...

The flotation experiment was carried out at fixed pH (pH 8.5) and fixed MIBC dosage (250 g/t-ore) and fixed time (15 minutes) while PAX dosage was changed from 25 g/t-ore to 75 g/t-ore.

Copper Flotation

A Copper Flotation Flowsheet. Because the copper in this type of ore usually assays only plus or minus 1% copper, the porphyry copper operations must be relatively large in order to be commercial. …

Optimization of reagent dosages for copper flotation …

The reagent dosages of 12 g/t Z11, 11 g/t AP407, 3 g/t AF65 and 15 g/t AF70 produced the maximum Cu recovery (86.44%). The collector distribution demonstrated …

ATEX Announces Excellent Metallurgical Recoveries for Cu-Au …

Copper rougher flotation time and mass pull sensitivities were run that focused on increasing gold recovery to copper concentrate. Regrind sensitivity tested regrind sizes down to 20-25 microns. Reagents dosage sensitivities were run and demonstrated that conventional combinations of the PAX and 3477 collector reagents …

Combined Effect of Operating Parameters on Separation

This study aims to investigate the effects of operational variables on concentrate grade, recovery, separation efficiency, and kinetic parameters of the copper flotation process. For this purpose, the effects of the pulp solids content, collector and frother dosage, and preparation and concentrate collection time were studied using a …

Copper Oxide Flotation

Continuing with the evaluation of copper oxide flotation using hydroxamate we now evaluate a rock that's 41% copper oxide with some lead oxide included. Sample B: 1.8% Copper about 41% Oxide Cu …

Development of copper recovery process from flotation tailings by …

The copper concentrate was first prepared by flotation under the optimal conditions obtained from the previous study, which was pH 10, pulp densities 25%, collector (PAX) dosage 100 g/t‒ore, sulfurizing reagent (NaHS) dosage 1000 g/t, frother (MIBC) dosage 200 g/t‒ore, and flotation time 15 min [30]. The copper grade was upgraded to …

Use of ZnSO4 and SDD mixture as sphalerite depressant in copper flotation

The optimum conditions for flotation separation of chalcopyrite from the Cu-Zn sulfide were as follows: combined depressant dosage of 10 −4 mol/L (ZnSO 4: SDD = 3:1), BX dosage of 10 −5 mol/L, and flotation pH of 10. Under such conditions, a copper concentrate assaying 30.21% Cu with 86.79% recovery was achieved from the Cu-Zn …

Flotation Reagents

Optimization of reagent dosages for copper flotation using statistical

The only reagent with an increasing dosage is AF70 with 15 g/t comparing to the current consumption in the plant of 10 g/t. 5 Conclusions 1) A two-level full factorial design was used for modelling and optimizing four copper flotation reagents, namely, Z11 and AP407 as collectors and AF70 and AF65 as frothers.

Response Surface Methodology for Copper Flotation …

Response Surface Methodology for Copper Flotation Optimization in Saline Systems María P. Arancibia-Bravo 1,2,*, Freddy A. Lucay 3, Felipe D. Sepúlveda 4, Lorena Cortés 5 ... Frother dosage, pulp density, and collector dosage REE recoveries and concentrations 0.930 0.900 [29] D-optimal design Iron Collector dosage, frother

Copper recovery from copper slags through flotation

Under the condition with a grinding time of 10 min, experiments on Na 2 CO 3 dosage were conducted. The results of flotation are shown in Fig. 5 (a). With an …

Optimisation of gold recovery by selective gold flotation for copper

Alternative processes for the treatment of copper bearing gold ores are flotation (Bulatovic, 1997 Forrest et al, 2001), alternative lixiviants such as thiosulphate (Bas et al, 2011), alkaline or ...

RIFRSSHURUHIURP/*20DUHD 6: 3RODQG

Influence of reagent dose on the flotation selectivity of copper ore from LGOM area (SW Poland) M Duchnowska, A Bakalarz and A Luszczkiewicz . Wrocław University of Science and Technology, Faculty of Geoengineering, Mining and Geology, Wybrzeże Wyspiańskiego Street 27, 50-370 Wrocław. E-mail: …

Effect of Copper Sulfate on Zinc Sphalerite Flotation

As an example of the beneficial effect of copper sulfate in the activation of zinc sphalerite toward flotation, the series of results shown in Fig. 1 is of interest. These represent rougher tests on a sample of …

Flotation Depressants

First let's change the amount of the Flotation Depressants used. The valuable mineral that isn't liberated from the unwanted mineral will begin to be depressed along with the waste. For the floatation operator, the change that will become most apparent is, that the color of the froth will begin to reflect more of the wanted mineral's color.

The Application of a Nitrile-based Collector in the Flotation of a

Studies on the flotation of copper-bearing ore have demonstrated that Tecflote™ can be used as a primary collector or as a supplement to thiol-based collectors ... Doubling the dosage of Tecflote to 160 g/t resulted in reduced 3E and Cu recoveries and increased Ni and Fe recoveries with little effect on the metal grades. On the other hand ...

Enhancing flotation separation of chalcopyrite and magnesium

Figure 3 showed the effect of PAAS dosage on the flotation behavior of chalcopyrite, serpentine and talc. The experiment was carried out at pH 7. It can be seen from Fig. 3 that the dispersant ...

Flotation of nickel-copper sulphide ore

Fig.2 shows the effect of the process parameters on flotation recovery of nickel. 113-6 Fig.2. Main effect of process parameter on nickel recovery. Delta values in Table 7 show that pH has the most relative significance on the flotation behaviour of copper and is followed by collector dosage, which is ranked second.

Flotation of an Oxidized Copper Sulfide Ore

Microscopic examination and grain counting of the size fractions indicated that the degree of liberation of the copper minerals was obtained at about 150 µm. A sulfidization-flotation method was ...

The role of copper sulphate in pyrite flotation

The addition of copper sulphate enhances the rate of pyrite flotation and the grade of concentrate. The role played by copper sulphate is not entirely clear, and a number of theories have been proposed to explain the observed effect. Firstly, it has been suggested that copper ions are adsorbed onto the pyrite surface, thus modifying the surface ...

Statistical investigation of flotation parameters for copper …

Collector dosage is the most influential parameter that affect the grade of copper in the concentrate during the froth flotation of tailings. 2. Copper recovery was mainly influenced by collector dosage followed by the interaction of all 4 parameters (pulp …

Experimental Study on Flotation of Copper Sulfides in Yunnan Province

The results indicate that the optimum conditions for flotation of copper minerals from the material were identified as grinding fineness of 85%, dosage of CaO at 2000g/t, dosage of Na2S at 200 g ...

Pyrite Flotation

Can you list the factors affects the floatability of pyrite from refractory low grade ore. I used a Wemco lab flotation cell and aimed on analysing factors like collector dosages (PAX), Activator (Copper sulphate),MIBC, pH and others like pulp density and particle size (70 and 150 microns) .However how these factors affect the floatability of the pyrites from low …

Processing Gold Ore by Flotation

GOLD RECOVERY BY FLOTATION. A test on a sample, crushed to pass a screen of 120 holes per linear inch, containing $37 gold and 4.8% copper, gave a recovery by flotation alone of 90% of the gold and 98.5% of the copper, but left $8 gold in the tailing. The concentrate carried 44% insoluble matter, which could be reduced by re-treatment.

Flotation Collector Dosage – Over/Under Collection of …

Add enough collector and you will float the Titanic back to surface. High dosage of collector can undo any careful use of depressant you had used. The extra surface area also means a better contact being …

Minerals | Free Full-Text | Sustainable Use of Copper …

Extensive research has been carried out on the flotation of copper sulphide ore as compared to copper oxide and mixed type ores. Besides flotation, other beneficiation techniques (selective flocculation …

Flotation Collectors

This situation explains the greater dosage required of Group 3 and Group 4 collectors than with thiol collectors on sulfide minerals. ... (American Cyanamid Company's Reagent " 208 "), is to a certain extent replacing sodium aerofloat in the flotation of sulphide copper minerals, its mode of addition in conjunction with xanthate being the ...

Effect of Collector & Frother Concentration on Copper Flotation

The flotation process may be considered an interactive system consisting of many chemical, operational, and equipment variables. Changing any one of these variables causes an overall system response change. This study examines the effects of simultaneously changing the operating variables of: (1) frother concentration and air flow …

ISSN: 2578-7365 Research Article Journal of Chemistry: …

ate dosage of 1-2 kg/t of sodium silicate is considered suitable for enhancing selectivity of copper flotation. Figure 4: Flotation Results with Varying Dosage of Collector Figure 5: Effects of Sodium Silicate of Floatability of Copper Minerals Improving Copper Recovery The maximum recovery obtained was 90.8%. Mineralogical cha-