Flotation Mechanism of Sphalerite by Sulfuration–Amine …
The sulfuration–amine method uses sodium sulfide to sulfurate zinc oxide minerals, and uses a cationic collector (such as primary amine) as a collector for flotation. Since amine collectors cannot collect calcite and dolomite, and excessive sodium sulfide will not significantly inhibit the flotation of zinc oxide minerals, the sulfuration ...
Flotation of zinc oxide ores by cationic and mixed collectors
The flotation research of zinc oxide ores has been paid more and more attention with the increasing demand for zinc resources. In this particular study, micro-flotation tests were carried out using a mixed ternary collector comprising dodecylamine (DDA), potassium isoamyl xanthate (KAX), and ammonium dibutyl dithiophosphate …
Flotation of Zinc Oxide Minerals with Potassium Lauryl …
However, flotation for zinc recovery from nonsulfide deposits is much more difficult than the flotation of sphalerite from sulfide deposits and may become an option for zinc production only if a suitable processing technology is developed. In this regard, research efforts are being devoted to the flotation of nonsulfide zinc oxide minerals.
Design and selection of flotation collectors for zinc oxide …
As the easy-to-process zinc sulphide ores are being depleted, the utilization of zinc oxide ores has attracted more and more attention (Bai et al., 2020, Luo et al., 2019, Zhao et al., 2018). Froth flotation is the most popular method for the recovery of zinc …
Volatilization Kinetics of Zinc from the Flotation Products of …
Zinc extraction from oxide ore has been paid more and more attention to due to the exhaustion of zinc sulfide ore resources. In this work, the volatilization kinetics of Zn from the flotation products of low-grade lead–zinc oxide ore during carbothermal reduction in the temperature range of 900–1300 °C were investigated. The phase …
Sulphidization flotation for recovery of lead and zinc from oxide …
In this research, flotation of copper, lead and zinc minerals from a copper oxide–sulfide ore was studied. The identification tests showed that the sample is a mixture of quartz, chalcopyrite ...
Flotation of Aladagˇoxide lead–zinc ores
Flotation of Aladagˇoxide lead–zinc ores. Pegah Attarian. Oxide lead–zinc ore sample containing 10.17% Pb, 10.98% Zn, 57 g/t Ag and 164 g/t Cd was subjected to this experimental study and taken from Kayseri located in the foothills of the Aladag ˘ Mountains, Turkey. Preliminary flotation tests with the ore sample indicated that there was ...
Volatilization behavior of lead, zinc and sulfur from flotation
As shown in Table 1, Table 2, the chemical composition of the flotation products is primarily zinc, lead, sulfur, iron, silicon and calcium, and is characterized by the high content of Pb + Zn (29.35%), S (9.97%), SiO 2 (7.60%) and CaO (11.10%). The ratio of zinc oxide and zinc sulphide content is nearly 2.1 (ZnSO 4 and (Zn,Mn)Fe 2 O 4 are …
Hydrothermal Sulfidation and Flotation of Oxidized Zinc …
The oxidized zinc-lead ore used in the current study includes smithsonite and sphalerite as zinc minerals, and cerussite as a lead mineral, and it is a carbonate-hosted zinc-lead oxide ore. 2. The oxidized zinc-lead ore was sulfidized under the following conditions: particle size 74–58 μ m and the mole ratio of sulfur and zinc of 2.0 at 453 ...
Flotation of a Low-Grade Zinc Oxide Ore After Surface …
The flotation behavior of the lead oxide after thermal modification in the presence of sulfur and carbon was similar to that of the treated zinc oxide.3,17,18 …
Investigation on matching relationship between surface
Flotation performance can be improved not only by changing a single factor, but also by balancing the effects of different factors. In this paper, a satisfactory flotation separation result was obtained by modifying the surface characteristics of zinc oxide minerals and selecting a suitable collector to match each mineral.
(PDF) Flotation of zinc oxide ore using cationic and cationic …
Flotation of zinc oxide ore using cationic and cationic-anionic mixed collectors 155 Conclusion From two amine collectors used in this study, Armac T acts a little more selectively than Armac C and results in smithsonite concentrate with higher Zn grade while Ar- mac C is effective in enhancing the recovery of Zn. The KAX–Armac C mixed collec ...
A review of zinc oxide mineral beneficiation using flotation …
Owing to the similarities in the physicochemical and surface chemistry of the constituent minerals, separation of zinc oxide minerals from their gangues by flotation is an …
Flotation of Aladagˇ oxide lead–zinc ores
Oxide lead–zinc ore sample containing 10.17% Pb, 10.98% Zn, 57 g/t Ag and 164 g/t Cd was subjected to this experimental study and taken from Kayseri located in the foothills of the Aladağ Mountains, Turkey. Preliminary flotation tests with the ore sample indicated that there was no selectivity in terms of zinc recovery; therefore studies were …
Influence of important factors on flotation of zinc oxide …
The influence of the pH adjusting reagent on zinc oxide flotation is shown in table 3. After adding 3000 g/t Na 2 S into the pulp, the given pH regulator was added to reach pH = 11. It is clear that using Na 2 CO 3 as a pH modifier can reduce both grade and recovery of zinc in the concentration while applying NaOH has desirable results.
Flotation of Lead and Zinc
this is a classic. Galena flotation always precedes sphalerite flotation. The separation is done via pH control while zinc sphalerite is still inactive. Once the Pb is removed, the addition of copper sulphate will activate the zinc …
Flotation of zinc oxide minerals from low-grade tailings by …
The main purpose of this study was to find the optimum values for factors affecting the Zn recovery rate using oxine or dithizone as a chelating agent collector during flotation in a Hallimond tube. Eight control factors, including four levels of pH, oxine/dithizone, corn starch, sodium thiosulfate, sodium citrate, sodium silicate, …
Flotation of oxidized zinc ore without desliming
The objective was to verify the flotation behavior of the silicate zinc ore (calamine type) in the presence of slimes, with the aid of dispersing agents. Characterization studies identified the major minerals in the flotation feed as hemimorphite (calamine), quartz and dolomite. Dispersion tests showed that enhanced dispersion of …
Recent Progress on Chelating Reagents in Flotation of Zinc Oxide …
Zinc oxide minerals (primarily smithsonite and hemimorphite) are important sources of Zn. Flotation is the most widely used method of enriching zinc oxide minerals for mineral processing. Chelating reagents have received extensive attention for the flotation of zinc oxide ores because of their high selectivity and stability. This paper …
Mineral processing possibility of oxide lead and zinc …
In this study, the flotation of oxidized zinc ore from Angooran ore in the presence of cationic collector such as dodecylamine (DDA), anionic collectors such as oleic acid (OA), ... The separation of oxide zinc mineral from silicate minerals in smithsonite mineral, ...
Handbook of Flotation Reagents: Chemistry, Theory and Practice
20 - Flotation of Mixed Lead Zinc Sulphide Oxide and Oxide Lead and Zinc Ores. Pages. 67-86. Publisher Summary. Flotation of the lead oxide minerals is a difficult problem not least because there are no known direct acting collectors. Normally, during oxide lead flotation, a sulphidization method is used with xanthate as a collector.
Flotation of Aladagˇ oxide lead–zinc ores
The scope of this study was to recover oxide lead and zinc minerals from Aladağ Region (Kayseri-Turkey) ores. Primary studies carried out with this ore have shown that flotation of oxidized lead and zinc minerals, in particular zinc minerals was difficult (Engin and Önal, 2003). In this paper, flotation properties of lead–zinc minerals or ...
Role of sodium sulfide in the flotation of oxidized copper, …
This paper reviews uses of sodium sulfide in the flotation of oxide minerals of copper, lead, and zinc. The activation and depression effects of sodium sulfide are of particular importance because of their applications with oxidized lead and copper ores. In spite of its industrial importance, the nature of the heterogeneous reactions between sulfide ions in …
A review of zinc oxide mineral beneficiation using flotation …
In recent years, extraction of zinc from low-grade mining tailings of oxidized zinc has been a matter of discussion. This is a material which can be processed by flotation and acid-leaching methods. Owing to the similarities in the physicochemical and surface chemistry of the constituent minerals, separation of zinc oxide minerals from …
Mechanism study on the sulfidation of ZnO with sulfur and iron oxide …
The experimental results of zinc leaching residue showed that a flotation concentrate with 39.13% Zn, 6.93% Pb and 973.54 g/t Ag was obtained, and the recovery rates of Zn, Pb and Ag were 48.38% ...
Flotation of zinc oxide
The amount of zinc oxide used for flotation varies with the type of ore, but the following amount can be used: Floating zinc oxide ore: sodium sulfide 6~12kg/t, primary amine 100~600g/t. Floating mixed zinc ore: sodium sulfide 1~3kg/t, primary amine 50~100g/t. By this method, the general concentrate grade can reach 40~50%, and the recovery ...
The Effect of Zinc Oxide Flotation Using Dodecylamine
In this study, a flotation tailing from Wulagen zinc mine in China (Zn grade < 1%) was processed using froth flotation with combinations of amines (OPA 10, OPA 1214, OPA 13, DDA) and Na2S to study ...
Sulphidization flotation for recovery of lead and zinc from oxide …
A new flowsheet was developed to recover the valuable minerals from oxide or oxide-sulfide ores of lead and zinc. The flowsheet consisted of flotation of sulfide minerals, desliming and sulphidization-flotation of oxide minerals. The corresponding reagent system and techniques to the flowsheet were investigated. Batch and continuous …
[PDF] Flotation of zinc and lead oxide minerals from Olkusz …
A comparative study of two-stage flotation of Zn and Pb oxide minerals using anionic, cationic, and mixed (cationic/anionic) collectors. A lead-zinc carbonate ore sample containing 2.5% Pb and 9.39% Zn was used in this research work. The sample was prepared from the Darreh-Zanjir mine located in the Yazd province (Iran).
Recent Progress on Chelating Reagents in Flotation of Zinc …
Zinc oxide minerals (primarily smithsonite and hemimorphite) are important sources of Zn. Flotation is the most widely used method of enriching zinc oxide …