Chalcopyrite (Cu) Sphalerite (Zn) Separation by …
CONDITIONING AND BULK FLOTATION. The classifier overflow at 90% minus 200 mesh and approximately 20% solids with a pH of about 10 is conditioned with Dow Reagent Z-200. This reagent has both promoting and …
(PDF) Investigation of flotation parameters for copper recovery …
To improve the collision efficiency and flotation kinetics, agglomeration using the emulsified oil of finely ground chalcopyrite (D50 = 3.5 μm) was carried out before flotation.
FLOTATION OF PUERTO RICO CHALCOPYRITE by
The gangue minerals in the rougher flotation stay behind as the tailing products. Often it is better to float the gangue minerals and ... such as the concentration of chalcopyrite, sphalerite, galena, etc. (4). 1.2 Flotation Reagents In the treatment of ore material using the flotation
The Effect of an Anionic Polyacrylamide on the …
The recirculation of water recovered from the tailing thickeners to the flotation process introduces residual PAMs, which can impact the flotation of important copper sulfides like chalcopyrite, bornite, and enargite.
Measure and Evaluate Flotation Tail Losses
Although these fine chalcopyrite grains are relatively difficult to capture, in a practical flotation circuit, they should be considered reasonable targets to help improve overall copper recovery to the concentrate. Other losses to the cleaner-scavenger tailing include binary particles of chalcopyrite with sphalerite and pyrite.
An innovative method to degrade xanthate from flotation …
It has been reported that about 2 billion tons of minerals are processed by flotation methods every year (Pearse, 2005), and the consumption of alkyl xanthate, which is one of the most common organic-sulfur-based collectors for the flotation of metallic sulfide minerals (chalcopyrite, galena, sphalerite, and pyrite), is expected to reach ...
Comprehensive recovery of metals from cyanidation tailing
It oxidized the residual cyanide in cyanidation tailing pulp from 0.37 g/t to 0.14 g/t under test conditions, leading to easier flotation of chalcopyrite and galena than sphalerite and pyrite. (2) The obtaining Cu–Pb concentrate became much harder to separate than the original as a result of the residual reagents.
Highly selective flotation separation of chalcopyrite and …
Froth flotation is a widely and economically employed treatment method for the early separation of chalcopyrite and pyrite mainly according to the differences in the physicochemical properties of the minerals in the presence of various surfactants (Lee et al., 2022, Mkhonto et al., 2021).To achieve high-quality copper concentrates in the separation of …
Pullulan Polysaccharide as an Eco-Friendly Depressant for Flotation …
The separation of Cu–Mo can be achieved by using kerosene or xanthate as collectors and pectin as a depressant. 11 In the pH range of 3–8, tragacanth gum had obvious selective depression behavior on chalcopyrite flotation but had little effect on molybdenite. Tragacanth gum may be chemically adsorbed on chalcopyrite through the hydrogen ...
Cooperative bioleaching of chalcopyrite and silver-bearing tailing …
Fig. 2 shows the bioleaching results of samples with different mass ratios of chalcopyrite and silver-bearing tailing. The copper concentration of sole silver-bearing tailing was very low (less than 0.05 g/L), and that of sole chalcopyrite was only about 0.9 g/L.However, the copper extraction of chalcopyrite increased sharply from 26% to more than 90% with the …
Insights into the design of polymetallic ore flotation circuits
Keywords: Copper tailing, Pyrite recovery, Flotation, Split factor. View. Show abstract. ... and the use of organic depressants in the most common chalcopyrite-flotation instances, including ...
The Effect of an Anionic Polyacrylamide on the Flotation of …
High-molecular-weight polymers based on anionic polyacrylamides (PAMs) are used as tailing flocculants in mineral processing plants. The recirculation of water recovered from the tailing thickeners to the flotation process introduces residual PAMs, which can impact the flotation of important copper sulfides like chalcopyrite, bornite, and enargite.
The valorisation of platinum group metals from flotation …
The primary sulfides occurring in these ore bodies are pyrrhotite (Fe 1-x S), pentlandite ((Fe,Ni) 9 S 8), chalcopyrite (CuFeS 2), ... (2008) in a pilot investigation found that at stable primary plant operation, tertiary tailing re-treat flotation recovery from the primary plant tailing stream yields an average of about 10% value recovery ...
Recovery of Copper from Cyanidation Tailing by Flotation …
However, little study is available regarding the flotation behavior and mechanism of cyanide chalcopyrite, especially the influence of cyanide leaching time on the physical and chemical properties ...
Understanding the effect of grinding media on the …
Cyanide tailing is highly toxic, persistent, concealed and refractory due to the present of cyanide, thiocyanate, heavy metals and other pollutants [1] ... the recovery of valuable elements from cyanide tailings have received widespread attention. For chalcopyrite, flotation is the main means to recovery it from cyanide tailings. Thus ...
Cobalt and Nickel Recovery from Missouri Lead Belt Chalcopyrite …
The tailing contained 67.2 pct of the nickel and cobalt, and 15.9 pct of copper originally contained in the concentrate; the remainder of the values reported to the flotation concentrate, which analyzed 29.6 pct Cu. To verify the laboratory flotation results, a 60-kg/hr process demonstration unit was constructed in the Cominco American Magmont ...
(PDF) Copper Upgrading and Recovery Process from Mine Tailing …
At the condition, the grade of Al and Fe were reached to 0.6 mass% and 6.6 mass% from 3.45 mass% and 3.51 mass%, respectively. Key Words : Copper, Flotation, Mine tailing, Chalcopyrite, Flotation reagent 1 INTRODUCTION Mineral resources are non-renewable and most important resources of which utilization has increased in many industries.
Effects of Xanthate on Flotation Kinetics of …
This paper investigated the effects of using or not using potassium butyl xanthate (PBX) as a collector on the flotation kinetics of talc and chalcopyrite. By means of atomic force microscopy (AFM), Fourier-transform …
The influence of NaCl on xanthate adsorption on chalcopyrite …
The four concentrates and remaining tailing were filtered and dried at a temperature of 60 °C for a minimum of 24 h. After drying, the samples were weighed to determine chalcopyrite or quartz flotation recovery. ... On the other hand, the comprehensive chalcopyrite flotation results, including overall recovery, true flotation recovery and ...
Evaluation of the possibility of copper recovery from tailings …
Finally, it is proved that the reprocessing of tailing by flotation is reliable, economical and promising in copper extraction industry, and therefore, cleaner production of copper concentrate is feasible. ... Copper sulfate was adopted as the activator for cyanide depressed chalcopyrite. Under flotation conditions of a collector concentration ...
Effect of polyaspartic acid as an environmental
However, arsenopyrite tends to co-occur with chalcopyrite and flotation properties of the both minerals are similar [9]. Thus, successful separation of chalcopyrite and arsenopyrite is challenging. ... ε = m 1 m 1 + m 2 × 100 % where ε denotes the flotation recovery, m 1 is the mass of concentrate and m 2 is the mass of tailing.
Effects of coarse chalcopyrite on flotation behavior of fine
In flotation, fine particles do not collide with air bubbles hence the low recovery of fines to froth. Fig. 2 shows the experimental results of flotation vs model calculation results for fine chalcopyrite (D 50 = 2.3 µm) and coarse chalcopyrite (size: –106 + 75 µm). The results show that recovery of fine chalcopyrite was much lower than that of coarse chalcopyrite, …
Recovery of Copper from Cyanidation Tailing by …
chalcopyrite mass, and x 0 is the copper content in the deep-depressing chalcopyrite. Fig. 1. XRD spectrum of the chalcopyrite. Table I. Chemical composition of the chalcopyrite (wt.%) Cu Fe S LOIa Purity 32.41 29.96 34.02 6.25 93.75 aLoss on ignition. Recovery of Copper from Cyanidation Tailing by Flotation 549
Interface Behavior of Chalcopyrite During Flotation from …
As the main copper-bearing sulfide minerals in cyanide tailings, how to improve the flotation recovery of chalcopyrite is of great significance to the comprehensive …
Amorphous silica effects on copper flotation: A kinetic and …
Chalcopyrite was crushed to −3 mm by a jaw crusher, and then splitted to 15 g samples. To avoid oxidation, these samples were frozen at −18 °C and prior to flotation, 15 g of chalcopyrite underwent wet grinding at a solid concentration of 38 wt% in a rod mill.
The flotation of sphalerite mine tailings as a remediation …
In the flotation of chalcopyrite, the cyanide-ZnSO 4 mixture had a greater depressing effect on sphalerite than the dextrin-ZnSO 4 mixture. When using cyanide, ... Reprocessing of a Southern Chilean Zn Tailing by Flotation - A Case Study. Minerals, 8 (2018), p. 295, 10.3390/min8070295. View in Scopus Google Scholar. Bagci et al., 2007.
The Challenges and Prospects of Recovering Fine Copper …
Flotation is a common mineral processing method used to upgrade copper sulfide ores; in this method, copper sulfide mineral particles are concentrated in froth, and associated gangue minerals are ...
Activating flotation of chalcopyrite using CuSO4 and H2O2 …
The effects of CuSO4 and H2O2 on the flotation behavior of cyanide chalcopyrite were investigated by flotation tests, microcalorimetry and X-ray photoelectron spectroscopy (XPS). The underlying activation mechanism was studied in the perspective of micro-thermodynamics and surface properties. The flotation results indicated that cyanide …
Froth Flotation of Chalcopyrite/Pyrite Ore: A Critical Review
If a chalcopyrite flotation plant works at pH close to 11, the pH being modified by lime, it is expected that the collector will selectively adsorb on the chalcopyrite surface. ... Jeldres R.I., …
Polymers with Biobased Hydrophobic Cardanyl Acrylate and …
This research aims to address this challenge by utilizing Reversible Addition–Fragmentation Chain Transfer polymerization (RAFT) as a synthetic methodology for …