Recognizing the presence of these interactions, particularly between galena, sphalerite, and pyrite is essential for optimizing flotation processes in changing contexts.

Although there is a difference between floatability of dry ground galena and sphalerite, the selective flotation separation of galena from sphalerite is recommended through wet grinding [9]. ...

Temperature variations could potentially impact flotation performance, leading to operational and economic issues. Several historical and currently operating plants across Canada have reported seasonal metal losses as one of their major challenges. Improvements in flotation efficiency at cold temperatures are important for …

A disaccharide unit glycosaminoglycan named hyaluronic acid (HA) was exploited as a novel sphalerite depressant in the flotation separation of Pb-Zn sulfides in this study. The effect of HA on the flotation of galena and sphalerite were evaluated by micro-flotation tests.

The purpose of this work was to study the effect of lead dissolved in a solution on galena and sphalerite surfaces, ethyl xanthate adsorption and ethyl xanthate adsorption kinetics on minerals in alkaline medium. As Pb (II) may be present in the pulp during Pb Zn flotation, derived from most Pb-minerals including galena due to galvanic …

Among the various metal-containing minerals, sphalerite and galena have emerged as primary raw materials for smelting metallic lead and zinc [1]. However, in the flotation process of sphalerite and galena, the natural dissolution of minerals releases …

The first-principles calculations were employed to study the interaction mechanism of the adopted reagents in the recoveries of sphalerite and pyrite from the galena flotation tailing. This study provides an important reference for the recoveries of sphalerite and pyrite from similar galena tailings.

Persson, I., Adsorption of ions and molecules to solid surfaces in connection with flotation of 2-Mercaptobenzothiazole in flotation of galena, chalcocite and sphalerite 1393 19.

The flotation results demonstrated that pectin exerts a selective depressive effect on sphalerite flotation and could achieve the separation of galena from sphalerite. Electrokinetic and adsorption studies confirmed that pectin is …

The results of micro-flotation tests proved that HA was an efficient and selective sphalerite depressant, which could depress sphalerite but hardly influence the flotation of galena to achieve ...

The chemistry of galena flotation 719 A strong similarity exists between the galena response shown in Figure 3, the various ore results shown in Figure 2 and the data of Guy and Trahar [12]. The onset of flotation occurs at a …

A novel surfactant trimethylacetyl thiobenzamide (TTBA) was synthesized and first conducted as flotation separation collector for galena and sphalerite. The flotation performance of TTBA and traditional collector sodium isobutyl xanthate (SIBX) was investigated by micro-flotation, which displayed that TTBA possessed stronger …

The flotation results demonstrate that Zn 2+ and SO 3 2− provide a synergistic depression effect on sphalerite and the aerofloat collectors exhibit more selectivity towards galena.

Sphalerite tailings are the most important type of waste in the mining district of Sardinia. This situation justifies the interest in the applicability of flotation as a remediation technique by which declassify the tailings (reducing the concentration of heavy metals). The flotation of mine tailings represents a novelty if aimed at ...

Download Citation | On Jan 1, 2022, Yuangan Chen and others published Selective Flotation of Galena from Sphalerite Using a Combination of Kmno4 and Carboxylated Chitosan | Find, read and cite all ...

At the given reagent and operating conditions, floc flotation increases the floatability of the galena and sphalerite fines over 30% ~ad 50% in the range of pH 5 to 8, respectively, in comparison to the corresponding conventional flotation. Clearly, floc flotation is an effective means of recovering galena and sphalerite fines.

The first step is dominated by flotation of galena and also covers the sphalerite that has fast float velocity to obtain the mixed concentrate dominated by galena [I step bulk flotation (dominated by lead)].

Galena, as an important lead-bearing mineral, always coexists with sphalerite, a major zinc-bearing mineral [1]. Generally, two common treatment methods are employed for separation of galena and sphalerite, which includes selective flotation of galena and depression of sphalerite, and selective flotation of sphalerite and …

A sphalerite deportment study using QEMSCAN® was conducted to understand the distribution of the sphalerite grains with varying iron and manganese content during a multi-stage Zn-Pb-Cu flotation of a complex ore. In addition, the study aims to understand the effect of sphalerite chemistry in relation to grain size and liberation.

In this work, HPAA (2-Hydroxyphosphonoacetic Acid) was explored as a novel sphalerite depressant for the selective flotation of sphalerite and galena. The depression performances and mechanisms were investigated through micro-flotation tests and various characterization techniques.

The effect of PMA–EDTC on the floatability of galena and chalcopyrite was investigated through micro-flotation and Contact angle measurements. The experimental results demonstrated that PMA–EDTC exhibited selectivity inhibition towards galena rather than chalcopyrite across a wide pH range.

In this study, the effect of cationic guar gum in the flotation separation of galena from sphalerite when diethyldithiocarbamate acted as galena collector was investigated, mainly through flotation tests and ToF-SIMS analysis.

Semantic Scholar extracted view of "A reagent scheme for galena/sphalerite flotation separation: Insights from first-principles calculations" by Li-min Zhang et al.

In this work, 2-phosphonobutane-1,2,4-tricarboxylic acid (PBTCA) was explored as a novel sphalerite depressant in the selective flotation of galena from sphalerite. The separation performances were investigated by …

The results of flotation, using 2-mercaptobenzothiazole (MBT) and its derivatives, 6-methyl-MBT (MMBT), 6-methyloxy-MBT (MOMBT), 6-propyloxy-MBT (PrOMBT), and 6-pentyloxy-MBT (POMBT) on pure mineral samples showed some important advantages in the flotation of galena at neutral pH and low collector dosages. …

Xanthate is the most commonly used collector for sulfide mineral flotation, but its poor selectivity and instability in acidic condition causes problems to the flotation industry [2]. For this issue, chelating reagents with high selectivity and stability are indispensable collectors in the flotation separation of galena and sphalerite [3], [4].

An effective reagent combination plays a crucial role in the flotation separation of galena and sphalerite. In this work, potassium permanganate (KMnO4) was used to amplify the property difference ...

The flotation tests of pure minerals show that in this system the flotation behaviors of sphalerite and pyrite present irreversible characteristics along with the change of pulp potential. Furthermore, through the CDR system, considerable differences in the …

Download Citation | On Feb 1, 2024, Song Ningbo and others published Effect of seawater on flotation separation of galena from sphalerite | Find, read and cite all the research you need on ...

Xanthate is the most commonly used collector for sulfide mineral flotation, but its poor selectivity and instability in acidic condition causes problems to the flotation industry [2]. For this issue, chelating reagents with high selectivity and stability are …