It has been known for a long while that Aeropromotor 208 is an effective promoter in gold flotation (Leaver and Woolf ... covellite and chalcopyrite has also been studied (Sutherland and ... Selective gold flotation at Sonora Mining's Jamestown concentrator using Aero 5688 promoter. Min. Met. Process., 7 (4) (1990), pp. 180-184. …

The choice of reagents for copper sulfides flotation is influenced by the ratio of …

Chalcopyrite (CuFeS 2) is an important and abundant cupriferous mineral, accounting for 70% of copper resources on Earth (Córdoba et al., 2008, Li et al., 2013).The commonly used technology for copper-bearing ore separation is froth flotation (Liu et al., 2019a, Liu et al., 2019b, Liu et al., 2017).As flotation is a water-intensive process, many …

The molybdenite flotation yield decreased from 65% (acid pH) to 50% …

Environmentally friendly, flexible and affordable flotation depressants are needed due to the depletion of easy-to-process high-grade ores as well as sustainability and environmental concerns. This paper discusses various organic depressants that have been adopted for selective depression of unwanted minerals in chalcopyrite flotation.

They also found that the flotation response of pyrite at pH 10 with biosolids and Aero 6697 promoter floated up to 40%, this proved that at alkaline pH, biosolids had a higher affinity for Fe ...

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 …

of 400 eV was chosen. For the chalcopyrite and pyrite bulk cells, k-point meshes of 5 9 5 9 2 and 4 9 4 9 4 were utilized according to the Mon-khorst–Pack method. The configurations of the 10, + Selective Adsorption Mechanism of Ferric Ions on the Surfaces of Chalcopyrite and Pyrite in Flotation

Syensqo flotation collectors and promoters include the AEROPHINE®, AERO®, and …

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 infrared spectroscopy (FTIR), a contact angle measuring instrument and particle size analyzer, the underlying causes …

Surfactants with multiple polar groups have shown promising applications, while the molecular mechanism that distinguishes them from conventional surfactants remains unclear. Herein, a novel surfactant, BETX, which contains two polar groups was designed, and the effect of intramolecular interaction on its molecular mechanism was …

Figure 2 shows the recovery of molybdenite and chalcopyrite after 8 min of flotation in the absence and presence of OMs with concentrations of 5, 10 and 20 mg/L. Both molybdenite and chalcopyrite recoveries are depressed by these OMs in the following order: HA > TA > FA. Increasing the concentration of OM resulted in further depression of ...

The flotation behavior of chalcopyrite with MIXODT as a collector was first evaluated by the micro-flotation experiments, and the results indicated that MIXODT showed better flotation capacity ...

To effectively separte pyrite from chalcopyrite, tetrazine thione group and hydrocarbon chain were combined to synthesize tetrazine thione collectors. 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 …

1. Introduction. Flotation is an efficient method for mineral separation [1].The complex gas–liquid-solid three-phase flow in a flotation device directly affects the flotation efficiency, with the help of CFD (computational fluid dynamics), it is possible to predict the flotation rate constant of a flotation device and thus have the potential to identify …

The micro-flotation results indicated that L-cysteine exhibited excellent depressing power for chalcopyrite at approximately pH 8.0. The bench scale flotation results further confirmed that it may be possible to adopt L-cysteine as a more environmentally-friendly depressant compared with the conventional depressants of Na …

Copper and lead are two important and widely used metals in industry. Chalcopyrite (CuFeS2) is associated with galena (PbS) in ore, and it has been a research hotspot in separating galena from chalcopyrite by flotation. In this study, the flotation behaviors of chalcopyrite and galena were studied through flotation tests, adsorption …

1. Introduction. Both copper oxides and sulfides ores have been concentrated by froth flotation in Chile and throughout the world for many years. However, the concentration of copper sulfides ores is by far more intensive than that of copper oxides (Bulatovic, 2007, Cochilco, 2012).In copper sulfides ores, the main valuable copper …

The promoter Aero MX-3752 and collector, sodium isobutyl xanthate …

Chalcopyrite and the filling materials used in the experiments were obtained from Yunnan Province and Anhui Province, China. After a series of crushing (jaw crusher), dry grinding (ceramic ball mill), and screening (standard sieve) steps, minerals with particle sizes of 0.038–0.074 mm were used for flotation experiments.

The flotation experiment results showed that at pH 3–8, TG had a significant selective depressive effect on chalcopyrite flotation and it was enhanced with increasing TG concentration, but ...

Structural Modification of Xanthate Collectors To Enhance the Flotation Selectivity of Chalcopyrite Xin Ma,† Liuyin Xia,‡ Shuai Wang,*,† Hong Zhong,*,† and Hui Jia† †College of Chemistry and Chemical Engineering, Central South University, Changsha 410083, People's Republic of China ‡Surface Science, University of Western Ontario, London, …

DOI: 10.1016/j.molliq.2024.124206 Corpus ID: 267597617; Flotation behavior and surface adsorption mechanism of a novel selective inhibitor HDP in the separation of chalcopyrite and talc flotation

Chalcopyrite flotation was compromised by 5% pyrite but restored by …

of kinetic models for chalcopyrite flotation: effect of operating parameters, Geosystem Engineering, DOI: 10.1080/12269328.2018.1560367.

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 ...

The selective depressing effect of Na 2 SO 3 on the floatability of chalcopyrite has been investigated by Miki et al. [25] for selective Cu-Mo flotation and by Suyantara et al. [30] for separation ...

The promoter Aero MX-3752 and collector, sodium isobutyl xanthate (SIBX), from Senmin Pty Ltd were each added to the main feed tank or batch mechanical cell at a concentration of 706 g/t of the 98 wt% chalcopyrite. Methyl isobutyl carbinol (MIBC) from Acros Organics and Matfroth-50 were used as frothers.

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 …

Common Types of Flotation Promoters/Collectors. The common promoters …