Chalcopyrite Surface Research Articles

Enhanced Chalcopyrite Dissolution in Acidic Culture Medium: The Impact of Arsenopyrite Presence

Nowadays, research on promoting the dissolution of chalcopyrite is important. As a natural symbiotic mineral of chalcopyrite, arsenopyrite will have an impact on the dissolution of chalcopyrite. This paper shows the influence of arsenopyrite on the dissolution of chalcopyrite in an acidic culture medium. The leaching results showed that adding arsenopyrite increased the leaching concentration of copper by 332 mg/L. The residues showed a decrease in sulfur through X-ray diffraction analysis (XRD) and an increase in dissolution degree through scanning electron microscope (SEM). Electrochemical experiments have shown that the rest potential of arsenopyrite is higher than that of chalcopyrite, so there is a galvanic interaction, and the impact on chalcopyrite is greater than that of arsenopyrite. The polarization curve also proves this. Under the interaction of galvanic couples, the reduction of S0 production and the enhancement of Cu2+ release can promote the dissolution of chalcopyrite. In addition, X-ray photoelectron spectrometer (XPS) analysis under the action of galvanic coupling indicates that more SO42− is generated on the surface of chalcopyrite, replacing Sn2−/S0, and SEM shows a stronger corrosion morphology. All results confirm that the electrochemical effect between arsenopyrite and chalcopyrite promotes the dissolution of chalcopyrite in the acidic culture medium.

Influence of Galvanic Interaction between the Iron Grinding Medium and Chalcopyrite on Collectorless Flotation Behavior of Chalcopyrite: Experimental and Density Functional Theory Study.

The eco-friendly flotation process for chalcopyrite is economically significant and promotes sustainable development in mining. Collectorless flotation is a green and clean method for chalcopyrite utilization, but galvanic interactions during the grinding process can affect the surface structure, chemical composition, and electrochemical properties, impacting collectorless flotation recovery. This article uses a self-made device and flotation experiments to study galvanic interactions and their effects on surface oxidation and collectorless flotation behavior under different grinding conditions (including mineral particle size, slurry water content, pressure, and galvanic interaction time). The impact of galvanic interaction on the surface chemical composition and electrochemical properties of chalcopyrite is studied using high-performance liquid chromatography (HPLC), X-ray photoelectron spectroscopy (XPS), and electrochemical tests. Additionally, the effect of the galvanic interaction on the surface structure is analyzed with density functional theory. XPS and HPLC results show that iron grinding media contact with chalcopyrite, reducing elemental sulfur content of the chalcopyrite surface, improving hydrophilicity, and decreasing chalcopyrite collectorless flotation recovery. Grinding conditions, such as mineral particle size, slurry water content, and galvanic interaction time, significantly impact collectorless flotation and can be regulated to optimize results.

Enhancing magnetism and magnetic separation of ultrafine chalcopyrite from talc through surface oxidation treatment

Magnetic separation has been proposed to greenly separate chalcopyrite and talc several decades ago, due to their extremely similar floatability of minerals. However, this approach was not achieved initially due to the inadequately magnetic induction of traditional magnetic separation, and fine particle size of chalcopyrite. Currently, the development of highly magnetic induction technology provides strong feasibility for this separation. In this work, we employed pulsating high-gradient magnetic separation (PHGMS) with highly magnetic induction (1.8T) to separate chalcopyrite and talc, and found that the PHGMS achieves a good separation of chalcopyrite from talc. But the chalcopyrite recovery decreased with the decrease of its particle size, and thus surface oxidation treatment was attempted to increase the magnetism and magnetic capture of ultrafine chalcopyrite. As a result, an increment of approximately 10 % was observed in the recovery of ultrafine chalcopyrite post-oxidation. As verified by the superconducting quantum interference device measurements, the oxidized ultrafine chalcopyrite exhibited a significant increase in the saturation magnetisation intensity, remanent magnetisation and coercivity values. Such magnetism enhancement is a result of the formation of paramagnetic Fe(III)–O–OH structures on the oxidized chalcopyrite surface, in terms of X-ray photoelectron spectroscopy and Mössbauer spectroscopy investigations. Furthermore, the density functional theory revealed that the formation of Fe(III)–O–OH structures caused a substantial increase in the magnetic moments of iron ions in antiferromagnetic chalcopyrite. These findings may extend the application of magnetic separation, and facilitate the flotation of ultrafine chalcopyrite from other minerals, at significantly reduced reagents use, and productive and environmental costs.

Халлимонд түтігіндегі мыс сульфидті минералдардың флотациясы

Under laboratory conditions, studies were carried out to determine the hydrophobicity of the surface of copper sulfide minerals bornite and chalcopyrite by differential thermal analysis and the infrared (IR) spectra of samples of these minerals were studied before and after the experiments. From the nature of the absorption of copper sulfide minerals by IR radiation, it is possible to determine the best indicators of the adsorption of reagents on the surface of minerals. When treating the chalcopyrite surface with anabazinium-O, O-dimethylthiophosphate and N-phenylthiosemicarbazide reagents N-morpholinylacetic acid has been found to weaken hydrogen bonds and evaporate adsorbed moisture. This indicates an increase in the hydrophobicity of the chalcopyrite surface compared to bornite. Studies of the non-soil flotation of the monomineral fraction of sulfide minerals were carried out in the Hallimond tube. During flotation of chalcopyrite treated with a solution of 1% N-phenylthiosemicarbazide of N-morpholinyl acetic acid, its extraction was 94.54%. The achieved indicators are confirmed by the results of differential thermal analysis and IR spectroscopy

Effect of polyaspartic acid as an environmental-friendly depressant on flotation separation of chalcopyrite from arsenopyrite

The selection of environmental-friendly and high-efficiency depressants is a major research priority for removing arsenic from copper concentrates. The polyaspartic acid (PASP, (C4H6O3N) n) was used for the selective separation of chalcopyrite from arsenopyrite to explore the depression mechanism of PASP using micro-flotation experiments, contact angle measurements, zeta potential measurements, fourier transform infrared spectroscopy (FT-IR), local electrochemical impedance (LEIS) and time-of-flight secondary ion mass spectrometry (ToF-SIMS). The flotation results showed that recovery of chalcopyrite reached up 90.18 %, while the recovery of arsenopyrite was only 23.48 %, when the PASP was added. The contact angle measurements and zeta potential measurements showed that PASP selectively adsorbed on the surface of arsenopyrite, but was not adsorbed on the surface of chalcopyrite. The FT-IR tests further confirmed that the adsorption was chemical adsorption. The LEIS tests revealed that the conductivity of arsenopyrite surface increased with the addition of PASP, while chalcopyrite was almost unaffected. The ToF-SIMS analyses illustrated that the arsenopyrite with Fe and As sites was reacted with —NH– in the structure of PASP to form stable complexes. Finally, the mechanism diagram was designed to provide insight into the adsorption mechanism of PASP on the surface of arsenopyrite and its selective inhibition of arsenopyrite.

A Novel Chalcopyrite Depressant for Selective Separation of Molybdenite from Cu-Mo Sulfide Ores and Its Interaction Mechanisms

In this study, GX2 was applied as a new high-efficiency chalcopyrite depressant to selectively separate molybdenite from Cu-Mo sulfide ores. The flotation performance and its interaction mechanisms with chalcopyrite and molybdenite were investigated using single-mineral and artificial-mixed-ore flotation, contact angle measurements, zeta-potential measurements, infrared spectroscopy, and X-ray optoelectronic spectrum analysis. The results indicated that molybdenite could be selectively separated from chalcopyrite under the optimal flotation conditions of pH 9.0, 80 mg/L GX2, 20 mg/L kerosene, 10 mg/L MIBC, and a flotation time of 3 min, while the molybdenite and chalcopyrite recoveries were around 90% and 5%, respectively. It was confirmed that GX2 could save ten times the depressant dosage compared to that of the Na2S baseline to achieve a similar separation efficiency. The contact angle test, zeta potential, infrared spectrum, and XPS results show that GX2 may be adsorbed on the surface of chalcopyrite via chemical adsorption, and the hydrophilic substances formed change its hydrophobicity, whereas the effect on the floatability of molybdenite is small, resulting in the excellent separation efficiency of chalcopyrite and molybdenite via flotation.

A strategy for source control of acid mine drainage by intelligent management of mine wastes

For mine site management, the release of acid and heavy metal ions from sulfur-containing waste rock or tailings (principally chalcopyrite and pyrite) under natural deposit conditions is a major environmental problem. In this study, the interaction between chalcopyrite and pyrite at different mass ratios under a simulated acid mine drainage environment was investigated. The dissolution experiments showed that a low proportion of pyrite promotes chalcopyrite dissolution, while a high proportion inhibits dissolution. However, this phenomenon is weakened by the presence of microorganisms. In addition, the combined characterization by X-ray diffraction spectroscopy, Fourier transform infrared spectroscopy, and Raman spectroscopy indicated that a high ratio of pyrite incorporation facilitated the formation of passivation layers on the chalcopyrite surface. Scanning electron microscopy results show that many oxidation etching pits are found on the surface of the chalcopyrite residues surface in a low ratio of pyrite addition, whereas numerous islands are observed and tightly wrapped around the surface of the chalcopyrite residues surface in a high ratio of pyrite addition. The current work presents a viable, practical approach to tailings stacking that reduces the release of the heavy metal ions copper and acid through the appropriate proportioning of ores.

Characteristic of Alteration and Mineralization of Sulfide Deposits at Sasak area, Tana Toraja, Indonesia

This study aims to determine the characteristics of hydrothermal alteration and the mineralization of sulfide deposits in the Sasak area. The method used is field research which includes observations of lithology, geomorphology, and geological structures and subsurface data collection with geomagnetic and polarization induction (IP), laboratory analysis methods in the form of petrographic, mineragraphy, AAS, and Fire Assay. The alteration characteristics start from strong intense potassic, argillic, and intense silicification to strong intense prophylitic. The mineralization is sulfide consisting of galena (PbS), sphalerite (ZnS), chalcopyrite (CuFeS2), and covellite (CuS) as well as a small amount of chalcocite (CuS2). Limonite, magnetite, and quartz are the dominant accompanying minerals, while gold-silver (Au-Ag) tends to be associated with limonite or quartz. Covellite tends to exist on the surface of chalcopyrite. Galena, sphalerite, chalcopyrite, and covellite are complexly bound to pyrite minerals or between the three minerals in fine sizes, there is even superfine galena as inclusions in pyrite. Based on the characteristics of alteration and mineralization indicates a porphyry-type deposit.

Catalysis of chalcopyrite on thiourea oxidation by Fe3+ and the advantage of oxalate during thiourea leaching of gold

Thiourea is a low-toxicity gold lixiviant that has promise to replace the highly toxic cyanide for gold extraction. Chalcopyrite is an important gold-bearing sulfide mineral, and thus investigation of its influence on gold leaching is important to maximize the utilization of refractory copper sulfide gold ore. In this paper, the effect of chalcopyrite on thiourea leaching of gold and the role of oxalate were studied through a series of leaching experiments, surface characterization and DFT calculation. Results showed that the presence of chalcopyrite severely hindered thiourea leaching of gold demonstrated as the greatly decreased in gold dissolution and thiourea stability. The detrimental effect of chalcopyrite was inferred to be the catalysis of chalcopyrite on thiourea oxidation by Fe3+, leading to the much-increased thiourea consumption, and thus deteriorated the gold dissolution. Oxalate as an additive was used to improve gold dissolution and thiourea stability. Oxalate not only weakens the interaction between Fe3+ and thiourea through complexing with Fe3+, but also competes with thiourea to adsorb on the chalcopyrite surface, decreasing thiourea adsorption. Besides, the formation of Fe-oxalate complexes, as the terminal acceptor of electron, significantly reduced the oxidizability of Fe3+, thus relieving the catalysis of chalcopyrite on thiourea oxidation.

Atomically Resolved Scanning Tunneling Microscopy of Cleaved Chalcopyrite Surface

Atomically Resolved Scanning Tunneling Microscopy of Cleaved Chalcopyrite Surface

The combination of calcium hypochlorite and fulvic acid as an efficient arsenopyrite depressant in Cu-As separation

In this work, fulvic acid (FA) was tested as a novel arsenopyrite depressant in the flotation separation of chalcopyrite from arsenopyrite with or without calcium hypochlorite (Ca(ClO)2). The flotation behaviors were investigated by single and artificial mixed mineral flotation tests. The depression mechanism of FA and Ca(ClO)2 on mineral surface was uncovered by electrochemical measurement, Zeta potential, contact angle, adsorption capacity, Raman, Fourier Transform Infrared spectroscopy (FTIR), and X-ray Photoelectron Spectroscopy (XPS). Flotation tests illustrated that FA had strong depression action on arsenopyrite but hardly influenced the flotation of chalcopyrite with or without Ca(ClO)2. Electrochemical measurement and Raman spectra results showed that the oxidation degree of arsenopyrite surface was higher than that of chalcopyrite. Zeta potential, FTIR and adsorption capacity results illustrated that FA preferred to adsorb on arsenopyrite surface than chalcopyrite surface, and the introduction of Ca(ClO)2 facilitated the adsorption of FA on arsenopyrite surface. XPS results indicated that Ca(ClO)2 promoted the oxidation of arsenopyrite surface to form more iron oxide products. In addition, FA strongly absorbed on arsenopyrite surface via the complexing between hydroxyl groups and Fe oxidized product to form Fe-OH species, preventing the adsorption of sodium isobutyl xanthate (SIBX) on arsenopyrite and rendering it hydrophilic. While FA weakly adsorbed on chalcopyrite surface, which could be substituted by SIBX and regain hydrophobicity.

Welan gum as a new depressant for the flotation separation of chalcopyrite from talc

Taking chalcopyrite and talc as examples, this article explores an anionic polysaccharide polymer, Welan gum (WLG), as an environmental depressant of talc. It depresses talc in the flotation system, thereby improving the flotation index of chalcopyrite. The flotation test results showed that under the action of an 80 mg/L depressant, a chalcopyrite concentrate with Cu grade of 28.87 % and Cu recovery rate of 86.72 % was obtained, indicating efficient separation ability of chalcopyrite-talc. The zeta potential and adsorption results indicate that the adsorption capacity of WLG on the surface of chalcopyrite is significantly lower than that on the surface of talc. The contact angle tests found a significant change in the wettability of talc after the action of depressants. Fourier-transform infrared spectrum (FTIR), X-ray photoelectron spectroscopy (XPS), and scanning electron microscope energy spectrum spectroscopy (SEM–EDS) studies have found that WLG is mainly adsorbed on talc through physical interactions. According to density functional theory (DFT) calculation analysis, the –COOH- and –OH in the WLG structure can interact with Mg, Si, and O atoms in talc.

Adsorption mechanism of a biodegradable plant polyphenol depressant for selective separation of chalcopyrite from talc

In this paper, the effect of Tannic acid (TA), a green, biodegradable plant polyphenol, as a talc depressant on the separation behavior of talc and chalcopyrite was investigated. The results of micro-flotation studies revealed that at a TA dosage of 20 mg/L at pH 7, talc recovery was barely 10 % whereas chalcopyrite recovery remained above 90 %, indicating that TA can selectively depress talc flotation. The results of the artificial mixed minerals test further confirmed the depressive effect of TA. The adsorption results showed that the adsorption density of TA on talc was greater than that on chalcopyrite surface. Similar conclusions were observed in zeta potential tests. It is noteworthy that the zeta potential of the chalcopyrite treated with TA and butyl xanthate sodium continued to shift negatively in comparison to the zeta potential of chalcopyrite treated with TA alone, suggesting that butyl xanthate sodium can continue to adsorb on the surface of chalcopyrite following TA treatment. Besides, X-ray photoelectron spectroscopy and Fourier-transform infrared spectroscopy tests concluded that TA adsorbs on talc surface by physical (hydrophobic) interaction. Differences in the crystal structures of chalcopyrite and talc, as well as the large number of phenolic hydroxyl structures contained in TA, are the main driving forces for the selective adsorption of TA on the talc surface. This work provides an insight to the selection of inhibitors for the separation of chalcopyrite and talc, particularly from the perspective of the hydrophobic effect of the talc layered structure.

Insights into the effect of ethyl xanthate on the adhesion and biofilm formation by Acidianus manzaensis on chalcopyrite

Adhesion and biofilm formation play important roles in the bio-dissolution of metal sulfides, which can initiate dissolution and enhance bioleaching. Ethyl xanthate, a commonly used flotation reagent, remained in flotation concentrates of metal sulfides and may have an impact on the bioleaching of metal sulfides. Therefore, it is important to analyze the effect of ethyl xanthate on microbial initial adhesion and biofilm formation. The results showed that the adhesion percentage of Acidianus manzaensis on chalcopyrite decreased with increasing ethyl xanthate concentration after adsorption equilibrium, due to the toxicity of ethyl xanthate to A. manzaensis. However, a low concentration (0.01 mg/L) of ethyl xanthate had little effect on the growth of A. manzaensis. The hydrophobicity of chalcopyrite increased after the addition of ethyl xanthate, leading to an increase in total interaction energy and adhesion force. The presence of ethyl xanthate inhibited the early growth of biofilm and delayed the formation of microcolonies on chalcopyrite. While biofilm coverage was larger with the addition of ethyl xanthate than that of the control when biofilm was mature. Furthermore, in the presence of ethyl xanthate, more and larger microcolonies were observed on the chalcopyrite surface when biofilm was matured, resulting in an increased corrosion degree and more jarosite produced on the chalcopyrite surface. This study suggested that a low concentration (0.01 mg/L) of ethyl xanthate could promote the dissolution of chalcopyrite, which could be significant for bioleaching of flotation reagent-bearing flotation concentrates.

Flotation behavior and mechanism of tannic acid as a depressant on Cu-Mo flotation separation

The similar flotation performance of chalcopyrite and molybdenite in the bulk concentrate made their separation a challenge. Therefore, selective depression of them was required. Previous studies had tended to focus on chalcopyrite depression. Tannic acid (TA), a macromolecular organic compound, has been used as a molybdenite depressant to separate chalcopyrite from molybdenite in flotation. Micro-flotation experiments showed that the TA demonstrated a stronger depression for molybdenite. The Cu and Mo recovery of 95.01% and 3.34% was achieved with the TA in mixed mineral flotation, respectively. The UV spectroscopy measurements suggested that TA had a greater adsorption amount on the molybdenite surface. XPS analysis showed that there was chemisorption between iron ions on chalcopyrite and TA and non-chemisorption between molybdenite and TA. The molecular dynamics simulation indicated that the hydrophobic interaction caused TA to be adsorbed on the molybdenite surface. The hydrophobic interaction between TA and the molybdenite surface was more favorable for adsorption than the chemical interaction of TA with the chalcopyrite surface. Additionally, it was confirmed by infrared spectroscopy analysis that TA adsorbed on the chalcopyrite surface would prevent the subsequent adsorption of PBX (potassium n-butyl xanthate), while PBX significantly weakens the adsorption of TA on the chalcopyrite surface.

Considering the mechanism of a depressant 2-Amino-5-mercapto-1,3,4-thiadiazole in the flotation of chalcopyrite and molybdenite

Separating chalcopyrite and molybdenite is difficult owing to their similarly high floatability. Accordingly, this paper considers the depressant 2-Amino-5-mercapto-1,3,4-thiadiazole (AMT), in order to separate chalcopyrite and molybdenite and investigate the relevant mechanism of AMT depression. Single-mineral flotation tests showed that when kerosene was used as the collector and AMT as the depressant, molybdenite showed excellent flotation while chalcopyrite was completely depressed. Mixed mineral flotation tests showed that separation of these two minerals could be achieved when AMT was applied as the depressant. Combining the test results of adsorption, Zeta potential, and XPS, the mechanism of AMT depression is suggested. Therefore, the adsorption mechanism of AMT on the chalcopyrite and molybdenite can be revealed. The adsorption of AMT on the chalcopyrite surface is unquestionably greater than that on the molybdenite surface. The results suggest that AMT is chemisorbed on chalcopyrite surfaces through the Cu-S bonds. By contrast, physisorption on molybdenite surfaces is through electrostatic action. Thus, selective depression of chalcopyrite can be achieved with the use of AMT. This study promises a more environmentally friendly flotation separation process for chalcopyrite and molybdenite.

The Extraction of Copper from Chalcopyrite Concentrate with Hydrogen Peroxide in Sulfuric Acid Solution

Research on chalcopyrite leaching represents a great challenge, given its importance as one of the most abundant copper minerals and its significant role in global copper extraction. This study aimed to evaluate the effects of different parameters on chalcopyrite leaching by hydrogen peroxide as a strong oxidizing reagent in sulfuric acid solution. A series of leaching tests were carried out to investigate the effect of the solid/liquid ratio, stirring speed, temperature, oxidant and acid concentrations, and lixiviant dosing method on copper extraction from chalcopyrite concentrate. The catalytic decomposition of hydrogen peroxide occurred in the investigated leaching system, as reflected in the obtained metal extraction values. Copper extraction was increased in the first 60 min of the reaction, after which it essentially ceased. The maximum final copper extraction of 64.5% was attained with 3.0 mol/L H2O2 in 3.0 mol/L H2SO4 at a temperature of 40 °C after 120 min of reaction. Due to the catalytic decomposition of hydrogen peroxide in the examined leaching system, the leaching experiment was performed with the periodic addition of lixiviant at specific time intervals as well. The dissolution process was described by the first-order kinetics equation with an apparent activation energy of ~39 kJ/mol. Finally, XRD and SEM-EDS analyses were used to characterize the leached residue, and the results showed that the formation of elemental sulfur on the chalcopyrite surface affected the dissolution process.

Utilizing H2O2 for the selective flotation separation of chalcopyrite and galena with their surface pre-adsorbed with Isopropyl Ethyl Thiocarbamate

Chalcopyrite and galena often coexisted in ore deposits, and they are usually processed by bulk flotation and then separated to obtain valuable mixed concentrateds. In this paper, we propose a flotation reagent strategy, that uses Isopropyl Ethyl Thiocarbamate (IPETC) and hydrogen peroxide (H2O2) to achieve different floatability on chalcopyrite and galena, it is evident that chalcopyrite and galena with IPETC adsorbed on the surface can be separated by H2O2. The flotation results show that H2O2 has a great inhibition effect on galena and exhibits a weak inhibition effect on chalcopyrite. Mixture of chalcopyrite and galena with IPETC adsorbed on the surface was successfully separated by flotation with 15 mg·L-1 H2O2 at pH 7. The inhibition mechanism of H2O2 was analyzed by contact angle measurements, single-channel scanning Inductively Coupled Plasma emission spectroscopy (single-channel ICP) analysis, Fourier Transform Infrared (FTIR) spectroscopy and X-ray photoelectron spectroscopy (XPS). The characterization analysis indicates that the rate of H2O2 oxidation of galena is faster, resulting in more hydrophilic oxidation products such as oxides and hydroxides on the surface of galena, while the surface of chalcopyrite is less affected by H2O2. Also, compared with chalcopyrite, the adsorbed IPETC on the galena surface can be easily blanketed by oxidation products, so realizes the effective separation of chalcopyrite and galena.

Effect of Electrochemical Interaction between Chalcopyrite and Hexagonal Pyrrhotite on Flotation Separation

The mechanism of electrochemical interaction between chalcopyrite and hexagonal pyrrhotite was analyzed via electrochemical interaction, copper ion concentration testing, and X-ray photoelectron spectroscopy (XPS) characterization. Besides, the effect of electrochemical interaction between the two minerals on the flotation separation was investigated using the mineral flotation tests, adsorption capacity tests, and a microcalorimetric test. Our research results showed that chalcopyrite had higher electrochemical activity than hexagonal pyrrhotite, and when the former acted as an anode during the electrochemical interaction of the two, the corrosion current density was three times higher than that when it acted alone, and the surface oxidation corrosion was intensified. At the same time, the interaction between the two minerals was accompanied by a large number of copper ions dissolved and adsorbed on the surface of the hexagonal pyrrhotite, so that adsorption of butyl xanthate intensified, adsorption increased, and flotation recovery increased by 5%–20%. However, owing to the increase in metal defects and the generation of hydrophilic sulfate, the surface of chalcopyrite hindered the adsorption of butyl xanthate on its surface, and the flotation recovery decreased by nearly 10% compared with that before the occurrence of the electrochemical interaction. This action also significantly weakened the inhibition effect of lime on hexagonal pyrrhotite and increased the difficulty of the flotation separation of the two minerals. The research results of this study provide theoretical guidance for the flotation separation of copper–sulfur ores containing pyrrhotite.

Investigation the effect of filling materials on chalcopyrite flotation

Raw ores are mixed with filling materials during mining, which makes it difficult to sort copper‑sulfur resources. Inductively coupled plasma analysis revealed that the primary dissolved metal ions from the filling materials were Ca2+ and Fe3+. Flotation solution chemistry, flotation tests, and X-ray photoelectron spectroscopy measurements confirmed that the dissolved calcium and iron materials were adsorbed onto the chalcopyrite surface in different component forms, which reduced chalcopyrite recovery. Moreover, zeta potential measurements, turbidity analysis, microscope observation, scanning electron microscopy detection, adsorption capacity measurements, and contact angle measurements revealed that the dissolved anions and cations from filling materials can change the surface zeta potential of chalcopyrite and filling materials, weaken the mutual repulsion energy, and strengthen the aggregation effect, thus reducing the adsorption of butyl xanthate on the chalcopyrite surface and its surface hydrophobics. The chalcopyrite recovery eventually decreased from 96.41% to 86.63%.