flotation separation pyrite

Selective separation of chalcopyrite from pyrite with a …

The selective flotation separation of pyrite and chalcopyrite, and the comprehensive utilization of AMD play a vital role in the cleaner production of copper sulfide ore. In this paper, flotation ...

Selective Separation of Chalcopyrite from Pyrite Using …

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 …

A potential ceramic ball grinding medium for optimizing flotation

The flotation separation index of chalcopyrite and pyrite in the CB medium system was better than that in the CIB system. The peak values of the selectivity index 2.65 (CB) and 1.58 (CIB) were obtained at a pH of 7 for CIB, pH of 9 for CB, collector dosage of 40 g/t, and CaO dosage of 1.0 g/t. (2)

Polysaccharides-based pyrite depressants for green …

At pH 10, micro flotation test results revealed that combining these two depressants could efficiently depress pyrite particles and selectively separate them from galena. This combined depressant attained an enhanced recovery difference between …

Utilization and Mechanisms of Tannic Acid as a Depressant …

Current flotation practices using lime or cyanide as depressants in chalcopyrite and pyrite separation have significant disadvantages, such as substantial reagent consumption, high slurry pH, and environmental hazards. This work aimed to explore the utilization and mechanisms of tannic acid (TA) as an eco-friendly alternative …

Utilization of soluble starch as the depressant to flotation separation

The separation of arsenopyrite from pyrite has always been a complication due to the lack of green and high-efficiency flotation reagents. In this study, a macromolecular organic depressant soluble starch (SS) was introduced, and its application and depression mechanism in the selective flotation separation of arsenopyrite and …

Flotation separation of chalcopyrite from pyrite using a …

1. Introduction. Over 21 Mt copper were produced annually worldwide in 2021, Chalcopyrite is the major mineral for smelting copper, it is closely associated with pyrite [1].To obtain a copper concentrate for smelting, flotation separation of chalcopyrite and pyrite must be carried out [2].At present, xanthate is widely used as a collector in the …

Flotation separation of pyrite and chalcopyrite with …

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 (KMnO 4) as a pyrite depressant to separate pyrite from chalcopyrite.Flotation and contact angle results indicated that pyrite could be depressed by KMnO 4 at pH 7, while KMnO 4 …

Pyrogallic acid as depressant for flotation separation of pyrite …

Herein, a novel micromolecular organic reagent, sodium O-(2,3,4,5,6-pentahydroxyhexyl) carbonodithioate (SPHC), was synthesised and employed as a selective depressant for pyrite in the flotation separation of bulk galena/pyrite concentrate. Micro-flotation tests demonstrate that SPHC exhibits superior selectivity and depressing ability …

Green hematite depression for reverse selective flotation separation

Shen, Z. et al. Selective depression mechanism of locust bean gum in the flotation separation of chalcopyrite from pyrite in a low-alkalinity media. Miner. Eng. 170, 107044 (2021).

Minerals | Free Full-Text | Selective Flotation of Pyrite …

In this study, the surface modification of arsenopyrite and pyrite with low temperature oxygen plasma was developed as an effective approach to improve the flotation separation efficiency of minerals. The …

Flotation separation of pyrite from chalcopyrite by …

The flotation performance of tetrazine thione collectors on chalcopyrite and pyrite was investigated, and the influence of different hydrophobic groups on the flotation performance was revealed. UV tests indicated that HxMTT was easy to bond with Cu + and Cu 2+, which accompanied by the release of H + into solution, while HxMTT was not …

Enhancing flotation separation of chalcopyrite and …

Separation effects of sodium polyacrylate (PAAS) and gum Arabic (GA) on flotation of chalcopyrite and magnesium silicate minerals using potassium butyl xanthate (PBX) as collector were ...

A critical review on the application of green polymer-type …

Chen et al. investigated the flotation separation of chalcopyrite and pyrite using sodium humate as a depressant (Chen et al., 2011b). The flotation of mixed minerals revealed that the grade of chalcopyrite concentrate increased from 18 % to 24 % in the presence of sodium humate, and the grades of associated gold, silver and molybdenum …

Studies on the selective flotation of pyrite from fine …

Flotation separation of pyrite from fine serpentine with the utilization of CA as a depressant was systematically investigated through micro-flotation, zeta potential measurements, turbidity tests, adsorption measurements, ICP-OES tests, FTIR and XPS spectra analyses. From all the results and analyses exhibited above, main conclusions …

Froth Flotation of Chalcopyrite/Pyrite Ore: A Critical …

This manuscript discusses the main chemical and physical mechanisms involved in the phenomena of reagent adsorption on the mineral surface, the impact of pH …

Enhanced flotation separation pyrrhotite from serpentine …

The flotation of pyrite is often depressed by the slime coating of fine serpentine, ... Studies on the application of N,N-bis(phosphonomethyl)-sulfamic acid in the selective flotation separation of pyrite from serpentine. Min. Eng., 183 (2022), Article 107602. View PDF View article View in Scopus Google Scholar

Flotation separation of chalcopyrite and pyrite via Fenton …

Froth floatation is extensively used for the effective separation of chalcopyrite and pyrite, and the flotation process is performed in a solution system, requiring a large amount of water (Li et al., 2017, Yang et al., 2022).Underground water is the most desirable water medium for flotation, but underground water resources are scarce and costly, …

Effect of Sodium Metabisulfite on Selective Flotation of …

Furthermore, the addition of diesel oil or kerosene could significantly improve the separation efficiency of selective flotation of chalcopyrite and molybdenite using MBS treatment. A mechanism based on X-ray photoelectron spectroscopy analysis results is proposed in this study to explain the selective depressing effect of MBS on the flotation ...

Pyrogallic acid as depressant for flotation separation of pyrite …

The depressive effect of tricarboxystarch on pyrite was more selective and effective than native starch. Excellent selective separation between pyrite and chalcopyrite can be achieved by adding tricarboxystarch to a low pH solution [37]. Flotation of pyrite was depressed more significantly than that of the chalcopyrite after H 2 O 2 treatment.

Frontiers | Effects of Sodium Alginate on the Flotation Separation …

In this paper, the effect of sodium alginate (SA) on the flotation separation of molybdenite (MoS2) from chalcopyrite using kerosene as collector was systematically investigated. The results of single-mineral micro-flotation tests indicated that SA exhibited strong depression on chalcopyrite flotation while it imposed no impact on the floatability of …

The flotation separation of sphalerite from pyrite through a …

In addition, the flotation separation of sphalerite from pyrite with the novel FeCl 3-CuSO 4-APTT reagent system without addition of CaO was investigated. Subsequently, the underlying flotation mechanism of APTT towards sphalerite and pyrite as-pretreated by cupric or ferric ions was explored through contact angle, FTIR (Fourier …

Flotation separation of pyrite from arsenopyrite in …

Flotation separation of pyrite from arsenopyrite in the presence of oxidants. Jian-hua Chen., Jiong Liu. & Yu-qiong Li. Pages 2933-2942 | Received 29 Jun 2018, Accepted 28 Nov 2018, Published online: 20 Dec …

Selective flotation of chalcopyrite from pyrite via seawater …

The flotation separation of chalcopyrite from pyrite has attracted increasing attention due to the consumption of vast water resources and depressants. This study proposed the seawater oxidation pretreatment for non-depressant flotation separation of chalcopyrite from pyrite, as an effective and environmentally friendly strategy.

Selective adsorption mechanism of salicylic acid on pyrite …

However, application of SA as pyrite depressant in chalcopyrite–pyrite flotation separation has rarely been reported. The SA molecule structure contains phenolic hydroxyl groups and carboxyl groups, which have the ability to bond to unsaturated atoms on the fractured mineral surface by oxygen atoms in the polar functional groups [23], [24].

Flotation behavior of pyrite in sub-bituminous and meta …

Removal of pyrite from coals is very important to reduce the emission of SO 2 during coal combustion.The selective flotation of pyrite from coal is challenging due to the hydrophobic nature of both coal and pyrite particles. The surface properties of coal vary significantly with the degree of coalification.The present paper investigates the flotation …

The Effects of Hydroxyl on Selective Separation of …

DOI: 10.1016/j.apsusc.2022.154963 Corpus ID: 252534621; The Effects of Hydroxyl on Selective Separation of Chalcopyrite from Pyrite: A Mechanism Study @article{Zhang2022TheEO, title={The Effects of Hydroxyl on Selective Separation of Chalcopyrite from Pyrite: A Mechanism Study}, author={Hongliang Zhang and Feng …

Flotation separation of molybdenite from chalcopyrite …

The flotation results indicated that L-cysteine exhibited stronger depressing ability than the conventional chalcopyrite depressants of Na 2 S, NaHS and sodium thioglycolate, suggesting it could become a promising potential depressant in the selective flotation separation of molybdenite from chalcopyrite.

Flotation separation of pyrite from arsenopyrite by surface …

SDBD plasma is an effective novel method to induce selective modification of mineral surface and realize flotation separation of arsenopyrite and pyrite. The mechanism analysis shows that SDBD plasma creates a specific oxidation atmosphere in the pulp through the chemical reaction and reactive species transfer in the plasma-liquid …

Effect of Electrochemical Interaction between Chalcopyrite …

For instance, Wu et al. concluded that the electrochemical interaction between pyrite and chalcopyrite substantially promotes the oxidative dissolution on the surface of chalcopyrite, which causes the dissolved copper ions to be adsorbed on the surface of pyrite, thus it is unfavorable to the flotation separation of both minerals.