chalcopyrite flotation test
Highly selective flotation separation of chalcopyrite and
2023.11.1 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
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Effect of deep oxidation of chalcopyrite on surface
2022.7.1 The collectorless flotation of chalcopyrite resulting from mild oxidation is the most thoroughly studied [9], [10]. Light oxidation formed a metal-deficient layer on
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Enhancing flotation separation of chalcopyrite and
2021.3.18 The micro-flotation experiments and zeta potential measurements showed that combined depressant consisting of PAAS and GA could efficiently reduce the
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Selective flotation of chalcopyrite from pyrite via seawater
2023.10.1 The micro-flotation results of single minerals indicated that seawater oxidation significantly improved the difference in flotation recovery between chalcopyrite
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Minerals Free Full-Text The Mechanism of the
2022.2.6 An electrochemical analysis showed that the magnetization pretreatment of butyl xanthate reduced the corrosion potential and corrosion current density of chalcopyrite surface and inhibited the self-corrosion
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Froth Flotation of Chalcopyrite/Pyrite Ore: A Critical Review
2022.9.21 The study of Fairthorne et al. indicated that the flotation of chalcopyrite and pyrite at pH 7 increased with the concentration of O-isobutyl-Nethoxycarbonyl
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Evaluation of the effect of the main parameters on
2023.8.10 test results, 5 important variables were determined as dependent variables. While the chalcopyrite grade decreased as the amount of clay increased, and
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Froth Flotation of Chalcopyrite/Pyrite Ore: A
2022.9.21 Chalcopyrite Froth Flotation of Chalcopyrite/Pyrite Ore: A Critical Review September 2022 Materials 15 (19):6536 DOI: 10.3390/ma15196536 License CC BY 4.0 Authors: César Castellón
MoreMinerals Free Full-Text Carrier Flotation Using Coarse
2023.7.7 Carrier flotation is a technique that can recover fine particles by using coarse carrier particles during the flotation process. In heterogeneous carrier flotation,
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Understanding the Role of Calcium Lignosulphonate in Flotation ...
3 天之前 The micro-flotation findings showed that under pH 5.0–10.5, the combination application of CLS and SIBX achieved a selective flotation separation of chalcopyrite
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Insight into selective depression of sodium thioglycallate on ...
2023.5.1 (1) The single mineral flotation test results showed that STG has pronounced selectivity for the flotation separation of chalcopyrite and arsenopyrite in the flotation system of Cu-As. However, excessive STG also has a significant depressant effect on chalcopyrite. The pH of the pulp has a considerable influence on the depression effect
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Froth Flotation of Chalcopyrite/Pyrite Ore: A Critical Review
2022.9.21 Chalcopyrite and pyrite show recovery of over 90% when working with SBX and MIBC at pH 4–10. An increase in pH to 11.5 allowed lowering the pyrite recovery to 63%. However, when using PCA, pyrite flotation was significantly reduced at pH 4–8, while chalcopyrite was slightly affected, with recoveries over 90%.
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Selective Separation of Chalcopyrite from Pyrite Using
2023.11.16 Flotation separation of chalcopyrite from pyrite using lime or cyanides as depressants results in serious problems, such as the blockage of pipelines and environmental pollution. Eco-friendly organics are a future trend for beneficiation plants. In this research, the eco-friendly organic depressant sodium humate (SH) was chosen as a
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Use of Polystyrene Nanoparticles as Collectors in the Flotation
2022.12.2 This study proposes the use of polymeric nanoparticles (NPs) as collectors for copper sulfide flotation. The experimental phase included the preparation of two types of polystyrene-based NPs: St-CTAB and St-CTAB-VI. These NPs were characterized by Fourier-Transform Infrared (FTIR) spectroscopy and dynamic light scattering (DLS).
MoreA Quantitative Relationship between Oxidation Index and Chalcopyrite ...
2022.7.15 Chalcopyrite, as the most abundant and widespread copper-bearing mineral (accounting for nearly 70% of the Earth’s copper), is a primary source of copper [1,2,3].Froth flotation is the most often used method to obtain chalcopyrite from natural ores due to its natural floatability stemming from different surface properties [4,5].However,
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(PDF) A Study of Temperature Effect on the Xanthate’s
2020.5.10 The contact angle raised from. 77° at 25 °C, to 87° at 40 °C and finally up to 93° at 60 °C. A signific ant temperature effect on. up to maximum contact angle of 96° at 60 °C. In gene ral ...
MoreSelective separation of chalcopyrite and talc using pullulan
2021.8.20 For the selective flotation experiments, 2 g of mixed minerals (1 g each of talc and chalcopyrite) were used as the flotation feed. The test procedure was the same as that used for single mineral flotation [29]. The copper grade in the concentration and tailing was measured via chemical analysis to calculate the chalcopyrite recovery. 2.3.
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Study on selective adsorption of organic depressant on chalcopyrite
2021.10.20 The results of flotation test, SEM, and EDS revealed a weak interaction between SDD and chalcopyrite, which had little effect on the floatability of chalcopyrite. This finding further indicated that SDD had a selective depression effect on pyrite, which is conducive to the flotation separation of pyrite and chalcopyrite [22] , [23] .
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Minerals Free Full-Text Application of Maleic Acidndash
2023.1.28 Environmentally achieving the flotation separation of chalcopyrite and galena is always a difficult problem due to the similar floatability of the two minerals. To conquer the problem, maleic acid–acrylic acid copolymer (MA/AA), an eco-friendly reagent, was applied as a potential depressant for flotation separation of chalcopyrite from galena
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Evaluation of the effect of the main parameters on ...
2023.8.8 Clay minerals are known to negatively affect sulfur flotation. In the present study, the effect of clay minerals (kaolinite-montmorillonite) on chalcopyrite flotation was investigated and it was aimed to propose solutions to eliminate the negative effects. In the experimental studies, ζ-potential measurements and flotation experiments were carried
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Froth Flotation of Chalcopyrite/Pyrite Ore: A
2022.9.21 In the present work an intense bibliographic search is developed, with updated information on the microscopic fundamentals that govern the behavior of flotation operations of chalcopyrite, the main
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Adsorption and desorption of butyl xanthate on chalcopyrite
2020.11.1 Since the flotation of chalcopyrite using xanthate needs to be carried out in alkaline, the adsorption test of xanthate on chalcopyrite was carried out at pH 8.0. The SP-2000UV UV-visible spectrophotometer was used for measuring the absorbance.
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Minerals Free Full-Text An Alternative
2018.12.20 Figure 3a shows the flotation test results of the artificial chalcopyrite–molybdenite mixture. The recovery and grade of the copper decreased as the CMC concentration increased up to 60 mgL −1.
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Separation of galena and chalcopyrite using the difference in
2023.9.5 Galena (PbS) and chalcopyrite (CuFeS2) are sulfide minerals that exhibit good floatability characteristics. Thus, efficiently separating them via common flotation is challenging. Herein, a new method of surface sulfuric acid corrosion in conjunction with flotation separation was proposed, and the efficient separation of galena and chalcopyrite
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Roles and Influences of Kerosene on Chalcopyrite Flotation in
2021.12.29 Seawater has been increasingly used as an alternative to freshwater in mineral flotation. Although previous studies suggest that Mg2+ ions in seawater have the primary negative roles in chalcopyrite flotation, insufficient work has been conducted to understand the effects of kerosene as a collector in chalcopyrite flotation. In this study,
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Selective depression of copper-activated sphalerite by
2021.6.23 flotation, polyaspartate (PASP) was used to depress calcite [19,23]. However, little research has been reported on the depressing effect of PAPA in the flotation separation of sulfide mineral flotation, and it is still unclear if PAPA can depress sphalerite during chalcopyrite flotation. In this study, the flotation separation of
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Effect of Electrochemical Interaction between Chalcopyrite
2023.10.8 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
MoreFlotation separation of molybdenite from chalcopyrite using
2020.9.1 The flotation test results indicated that chalcopyrite and molybdenite had high recoveries of more than 90% and 80%, respectively, in the tested pH range of 4–12; thus, it would be considerably difficult to separate chalcopyrite from molybdenite without a flotation depressant. ... However, in the presence of 4 × 10-4 mol/L of L-cysteine, the ...
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Selective galena depression mechanism of tea polyphenol in chalcopyrite ...
2023.11.1 A mixed mineral flotation test was conducted by manually mixing 1 g of chalcopyrite and galena and subjecting it to flotation testing at a pH of 8, TP concentration of 0 or 4 × 10 –4 mol/L, and SIX concentration at 4 × 10 –4 mol/L to evaluate the depressant ability of TP on galena during mixed flotation tests.
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Effects of Galvanic Interaction between Chalcopyrite and Monoclinic ...
2021.12.28 The galvanic interaction between chalcopyrite and monoclinic pyrrhotite and its effect on flotation separation were studied using monomineral flotation tests, adsorption capacity tests, X-ray photoelectron spectroscopy (XPS) characterization, and scanning electron microscopy (SEM) test. These results showed that the interaction
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The Effect of Sodium Alginate on Chlorite and
2019.3.26 The flotation results showed that sodium alginate could simultaneously depress the flotation of chlorite and serpentine effectively, but seldom influenced the floatability of chalcopyrite at pH 9. In the
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Minerals Free Full-Text Study of the Effect of
2017.3.30 The collector contrast test indicates that the SBX is a better collector for chalcopyrite flotation, while kerosene is better for molybdenite. Figure 3 presents the flotation behavior of chalcopyrite and
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Study on selective adsorption of organic depressant on chalcopyrite and ...
2021.10.20 Chalcopyrite and pyrite are difficult to separate under low alkaline environment. The selective depression mechanism of pyrite by sodium dimethyl dithiocarbamate (SDD) was explored in this study. Micro-flotation test showed that when the pH was 8.5, the recovery efficiency of pyrite decreased from 80.18% to 22.17% after
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Flotation separation of pyrite and chalcopyrite with
2023.12.4 The separation of chalcopyrite and pyite is not fully solved, and thus more efficient depressants are still needed in industry. This paper used potassium permanganate (KMnO4) as a pyrite depressant to separate pyrite from chalcopyrite. Flotation and contact angle results indicated that pyrite could be depressed by KMnO4 at pH 7, while KMnO4
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Polymers Free Full-Text Understanding the Interaction of
2022.7.12 The selective separation of molybdenite from copper sulfide concentrate in flotation process is realized using sodium hydrosulfide (NaHS) to depress the chalcopyrite and permit only the flotation of the molybdenite. However, this reagent is a highly toxic and flammable gas. The objective of this research was to study the feasible application of
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Flotation separation of molybdenite from chalcopyrite using
2020.9.1 Both chalcopyrite and molybdenite are floatable with the collector of kerosene, and the recovery decreased with an increase in pH to the alkaline region, which is consistent with the reported results in previous studies (Huang et al., 2014, Li et al., 2015a, Peng et al., 2017). The flotation test results indicated that chalcopyrite . Conclusion
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Selective flotation separation of chalcopyrite from talc by a
2022.2.1 The sample for zeta potential test was prepared by further grinding to − 10 μm. Chitosan (95% ≥ deacetylation ≥ 85%) used in this study was purchased from Sinopharm. The flotation of talc and chalcopyrite. The influence of NMPC concentration on the flotation of talc and chalcopyrite was shown in Fig. 4.
MoreAdsorption and flotation mechanism of a ketoxime
2023.2.1 artificial mixed minerals flotation test indicated that under the condition of pH=6.79 and IPXPO initial concentration 5×10−5 mol/L, the flotation recovery of chalcopyrite reached about 90%, while for pyrite only 25%, suggesting that IPXPO is an excellent collector for flotation separation and enrichment of chalcopyrite.
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Selective passivation behavior of galena surface by
2021.7.15 The flotation separation of galena (PbS) and chalcopyrite (CuFeS 2) with sulfuric acid (H 2 SO 4) requires high temperatures (60–80 °C) and long treatment times (greater than25 min).In this paper, ultrasonication was applied to enhance PbS depression with H 2 SO 4.Flotation and contact angle results revealed that PbS rather than CuFeS 2
MoreEffects of Galvanic Interaction between Chalcopyrite and Monoclinic ...
2021.12.28 The galvanic interaction between chalcopyrite and monoclinic pyrrhotite and its effect on flotation separation were studied using monomineral flotation tests, adsorption capacity tests, X-ray photoelectron spectroscopy (XPS) characterization, and scanning electron microscopy (SEM) test. These results showed that the interaction
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