This paper presents a critical review on the zinc oxide mineral flotation technique. In this paper, the various flotation methods of zinc oxide minerals which have been proposed …
Influence of important factors on flotation of zinc oxide mineral using cationic, anionic and mixed (cationic/anionic) collectors. Minerals Engineering, 24(13): 1402-1408.
At the same time, the high efficiency recovery of lead and zinc can be achieved in the form of zinc oxide dust due to the "self–reduction" property of carbon-containing briquettes. However, the carbothermal reduction method based on the RHF process for lead‑zinc oxide ore or the flotation products of lead‑zinc oxide ore has not …
The flotation results using mixed collector (Armac C + KAX) [1] showed that at a fixed amount of Armac C, when the KAX concentration decreased, the recovery was slightly reduced, but it enhanced the Zn grade. The best result has been reached in 8:1 …
Zinc recovery from different zinc oxide materials by sulfidization roasting-flotation process was carried out. Flotation yield of the natural smithsonite after roasting with pyrite at a FeS 2 /ZnCO 3 mole ratio of 0.30 increased by about 55%, contrast to the un-treated natural smithsonite.
Copper oxide minerals are important copper resources, which include malachite, azurite, chrysocolla, cuprite, etc. Flotation is the most widely used method for the enrichment of copper oxide minerals in the mineral processing industry. In this paper, the surface properties of copper oxide minerals and their effects on the mineral flotation ...
Separating oxidized zinc minerals from flotation tailings is always a challenge. 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 Na 2 S to study the effects of these amines on the zinc recovery as …
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 …
In addition, LSA and ODA showed potential selectivity for the separation of zinc oxide minerals from quartz. However, the flotation environment will cause unpredictable effects on the flotation performance. Hence, the effects of pH and Zn(II) on flotation recovery were investigated.
Flotation is the most common and commercial technique applied to recover nonferrous oxide minerals and for zinc recovery, sulfidization with alkali metal sulfides, followed by treatment with ...
Smithsonite Flotation from Zinc Oxide Ore using Alkyl Amine Acetate Collectors ... recovery of lead and zinc from oxide–sulfide ores. Transactions of Downloaded by [Amir Kabir University], [Akbar Mehdilo] at 23:47 21 January 2014 10. Hosseini, S.H.; Forssberg, E. (2007) Physicochemical studies of Nonferrous Metals Society of China, 15: 1138 ...
Separating oxidized zinc minerals from flotation tailings is always a challenge. In this study, a flotation tailing from Wulagen zinc mine in China (Zn grade < …
Tangdan copper oxide ore deposit, located in the northeast Yunnan province of China, is the largest independent copper oxide deposit in China. The ore from the deposit is characterized by low grade, high oxidation ratio and fine-grained dissemination, which results in the poor flotation recovery. The analysis of plant flotation data reveals that …
The pre-treatment of zinc oxide bearing ores with high slime content is important to ensure that resources are utilized optimally. This paper reports an improved process using hydrocyclone de-sliming, dispersion reagents, and magnetic removal of iron minerals for the pre-treatment of zinc oxide ore with a high slime and iron content, and …
The experimental results indicate that the zinc ferrite was decomposed into zinc oxide and wustite by reduction roasting under a gas mixture of 20% CO, 20% CO2 and 60% N2 at 1023 K for 90 min, and ...
Lab-scale experiments results show that the new process contributed to the flotation of the complex mixed sulfide-oxide lead and zinc ore regarding two aspects: (1) High alkaline process (pH=12± ...
Zinc recovery from different zinc oxide materials by sulfidization roasting-flotation process was carried out. Flotation yield of the natural smithsonite after …
Pb oxide minerals were recovered with sufficient recovery (84.43%) and grade (50.38%) through multistage sulfidization flotation while Zn oxide minerals cannot be recovered by sulfidization ...
Sulfuration-amine flotation is the most commonly used method to separate zinc oxide ore, but its shortcomings such as unstable separation index and poor applicability to high mud-content raw ore ...
In the sulfidization-amine flotation of zinc oxide, the inevitable presence of slime deteriorates the efficiency of zinc recovery, especially in the cleaner flotation stage. ... while the Zn ...
Zinc and lead are mainly extracted by pyrometallurgy or pyrometallurgy combined with hydrometallurgy.1,2 With continuous exploitation of sulfide ores and high …
Separating oxidized zinc minerals from flotation tailings is always a challenge. 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 the effects of these amines on the zinc recovery as well as …
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 …
A hypothetical optimisation solution assessment showed that SA provides the best set of solutions for the maximisation of rougher copper recovery, obtaining a throughput of 638.02 t/h and a total net gain percentage of 14%–15.5% over the other optimisation algorithms with. a maximum copper recovery of 94.76%.
Accordingly, the flotation recovery of hemimorphite increased after stepwise activation with Pb²⁺, which provided a new idea and method for efficient recycling of zinc resources from complex ...
The mixture of Armac C (50 g/t) and Armac T (300 g/t) was used as collector without any depressants. The results indicated that without desliming, the flotation of smithsonite consumes more sodium sulfide (12,000 g/t) and yields a lower recovery of Zn (29.4%) than that with desliming operation. In the same dosage of sodium sulfide, the Zn …
The micro-flotation test results showed that flotation recovery of the treated cerussite increased to above 80% under a suitable flotation condition. It was found that the S/PbCO3 mole ratio and ...
The industrial-scale flotation tests show that Pb recovery in Pb concentrate increased by 1.86% compared with that of original system during industrial-scale tests period, and the Pb recovery ...
In this study, the influences of important factors on zinc oxide flotation are investigated. Dosages of sulphidizing reagent, the pH regulator, the activator and the collector, use of sodium sulfide as the sulphidizing reagent, sodium carbonate as the pH regulator, copper sulfate as the activator and dodecylamine as the collector are essential to the effective …
Flotation of the zinc oxide minerals smithsonite, ... However, unlike to lead flotation, the grade and recovery of zinc concentrates reduced slightly. As can be seen, the Pb and Zn grades of the tailings were high and varied between 4.03–4.79% Pb and 7.89–8.08% Zn. Replacing sodium sulfide with sodium metabisulfite did not yield any …
