Separation of chalcopyrite and pyrite from a copper tailing …

The flotation tailings obtained from Bor Copper Mine contain pyrite (FeS2) and chalcopyrite (CuFeS2), these sulfide minerals are known to promote acid mine drainage (AMD) which poses a serious ...

Development of copper recovery process from flotation …

Metals, 2021. The flotation tailings obtained from Bor Copper Mine contain pyrite (FeS2) and chalcopyrite (CuFeS2), these sulfide minerals are known to promote acid mine drainage (AMD) which poses a serious threat to the environment and human health.

Unveiling the depression role of quercetin in selective flotation …

Froth flotation is an effective method for separating chalcopyrite from pyrite, using various flotation reagent depressants to amplify both minerals' surface differences in hydrophobicity [7], [8].Generally, lime is the depressant of pyrite in most of the concentrator plants [9], [10].There are two aspects to the depression mechanism of lime on pyrite.

Interface behavior of chalcopyrite during …

The interface characteristics of cyanide tailings are different from those of the raw ore. In this study, valuable elements could not be thoroughly recovered via the flotation of cyanide tailings from Shandong, China. The interface and …

Exploring the highly efficient depressant role of fenugreek …

Copper (Cu) is one of the most important nonferrous metals, and has been widely used in the modern industry. Chalcopyrite (CuFeS 2) is the main mineral source for the copper metallurgy, which is usually enriched by using flotation technology (Chen et al., 2019).In most of the chalcopyrite ore deposits, talc (Mg 3 (Si 2 O 5) 2 (OH) 2), a "TOT" layered silicate …

Selective flotation of chalcopyrite from pyrite via seawater …

Inorganic or organic depressants are normally applied to selectively depress pyrite flotation, as shown in Table 1 [8], [9].However, the application of these reagents increases the potentials in environment pollution [9].In recent years, various oxidizing strategies have been carried out to achieve a selective flotation separation by changing the surface hydrophobicity …

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.

Interface behavior of chalcopyrite during flotation from …

vealed that pyrite, galena, and chalcopyrite were the major minerals present in the tailings. The flotation water was de-ionized water. 2.2. Flotation test The flotation test of the cyanide tailings was performed using a suspended flotation cell (XFDIV 1.0, Jilin Explora-tion Machinery Plant Co., Ltd., China). The pulp density was

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 ...

2 Eriez Flotation Division Australia

The tailing from the rougher/scavenger flotation circuit is sent to the final tailing hopper. ... chalcopyrite in the float feed was fully liberated. The plant final concentrate copper had a …

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 ...

The Challenges and Prospects of Recovering Fine Copper …

In the case of chalcopyrite flotation, it has been reported that copper recovery to the froth was around 95% at particle sizes of 10−150 µm, while the recoveries decreased to 50% when particle size decreased from 20 µm to 3 µm [26,36]. ... As discussed above, there are two major reasons for tailing loss of copper in the flotation process ...

Froth Flotation of Chalcopyrite/Pyrite Ore: A Critical Review

The results of the flotation experiments showed that PCA could selectively depress the flotation of pyrite rather than that of chalcopyrite when using SBX as the collector, and the optimum ...

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 …

Flotation of chalcopyrite, pentlandite, pyrrhotite ores

FLOTATION OF CHALCOPYRITE, PENTLANDITE, PYRRHOTITE ORES TABLE 1 Approximate ore compositions Sudbury Thompson Shebandowan Pentlandite 3.0 7.1 5.0 Chalcopyrite 3.7 0.5 2. ~ Pyrrhotite 20 23 20 Quartz 16 28 6 Feldspar 14 24 7 Chlorite 21 - 25 Biotite 11 7 - Amphibole 10 6 < 5 Carbonates 2 < 5 10 Tremolite - - 15 Talc - - 4 SUDBURY …

Interface behavior of chalcopyrite during flotation from …

The interface and floatability of these tailings were investigated by phase analysis and flotation tests. The chalcopyrite in the cyanide tailings was fine and had a porous surface. …

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 ...

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, i.e., around …

The effect of sodium isobutyl xanthate on galena and chalcopyrite …

However, in the operating pH conditions usually expected for galena and chalcopyrite flotation (pH 7 – pH 10), the fastest decomposition was observed at pH 7. Grano et al. (1997a) suggest that the observed fast decomposition around pH 7 is indicative of the presence of HSO 3-in solution, which catalyses SIBX decomposition.

Effects of coarse chalcopyrite on flotation behavior of fine

Autogenous carrier flotation improved the floatability of finely ground chalcopyrite. Interaction energies between coarse and fine chalcopyrite were calculated. Carrier mass and …

Selective process route to recover magnetite …

This paper describes a study aiming at producing a magnetite pellet feed from a Sossego DAM copper tailing, which industrial copper flotation plant is in northern Brazil.

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 ...

Article Separation of chalcopyrite and pyrite from a copper …

In this paper, a copper tailing was studied through the chemical analysis method, X-ray diffraction and scanning electron microscope-energy dispersive spectrum. It turned out that …

The separation of chalcopyrite and chalcocite from pyrite in cleaner flotation after regrinding

Recovery of Copper from Cyanidation Tailing by Flotation …

In addition, the depression effect of hexacyanoferrous and hexacyanoferric complexes on chalcopyrite flotation is pronounced.17 Therefore, in order to recycle copper from cyanide tailings, it is necessary to eliminate depression effect of cyanide. At present, many studies of chalcopyrite activation are based on no depression.19,20 In this case, copper sulfate is …

Selective Process Route to Recover Magnetite from …

2.4verse Silicate Flotation Re The cleaner magnetite pellet feed was forwarded to a recleaner duty in a reverse silicate flotation step. First, the solid content of cleaner magnetic pellet feed pulp was adjusted to 30 wt% by adding water. The pulp was condi-tioned for 1.5 min with the addition of 90 g/t of a blended

A process mineralogy approach to optimize molybdenite flotation …

Distribution of minerals (left and bottom) and interlocking between them (right) in the molybdenite flotation process tailing (Cpy: chalcopyrite, Cv: covellite, Py: pyrite, Bn: bornite, Cc: chalcocite and Mo: molybdenite), left and right: Reflected light photomicrographs in plane-polarized light (PPL), bottom: BSE photomicrograph.

Partial seawater desalination treatment for improving chalcopyrite …

The results showed an improvement in flotation and flocculation performance when tests were carried out with treated seawater at pH > 10.5, where the copper recovery increased from 82% to 95%, compared to seawater without salt removal; meanwhile, the settling rate of flocculated tailing increased from 5.0 m/h to 11.5 m/h. As expected, the ...

Chalcopyrite (Cu) Sphalerite (Zn) Separation by …

Bulk flotation under differential conditions to reject the pyrite into the tailings results in about one-third (1/3) of the total weight ending up in the bulk concentrate containing slightly over 90% of the total copper.

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 ...

Minerals | Special Issue : Development of Flotation of Chalcopyrite …

The chalcopyrite deposit in Malanjkhand, India, is the largest copper ore producer in the country. However, its flotation performance has room for improvement. This study used standard flotation experiments using a mechanical flotation cell using a conventional collecting reagent and a collector blend consisting of xanthate and ester.

Analysis of kinetic models for chalcopyrite flotation: effect …

tailing fr action, %; ... (SMBS) in chalcopyrite and pyrite flotation. Kinetic flotation tests were also carried out in order to evaluate the kinetics behavior of the above-mentioned minerals.

Valorisation of a flotation tailing by bioleaching and brine …

Flotation tailing is a problematic mining waste, because contains sulphides that exposed to oxidising conditions generate acidic drainage and the subsequent metal mobilisation. In this study, a flotation tailing produced within an integral process for the treatment of polymetallic sulphide ores is cleaned and valorised seeking a better use of natural resources and a lower …

Flotation Tailings from Cu-Au Mining (Bor, Serbia) as a

The flotation tailing itself is located on the border of the urban and industrial parts of the city, and below it, there is a city wastewater collector. ... Of the copper sulfide minerals, enargite and chalcopyrite were found in the sample, which occur in the trace, ...

Selective Process Route to Recover Magnetite from Chalcopyrite …

This paper describes a study aiming at producing a magnetite pellet feed as a by-product from a dam chalcopyrite flotation tailings and generating free magnetite non-magnetic rougher tailings ...

Pyrite Flotation Separation and Encapsulation: A …

Pyrite flotation separation and encapsulation in tailings dams is proposed as a viable way to chemically stabilize tailings. Characterization of potential acid mine generation in tailings led to an innovative process in which acid-generating pyrite is separated by flotation from the coarse tailings and incorporated into the slime zone. This creates pyrite-free neutral …