A Study on the Utilization of Ultrasonic Pretreatment in Zinc Flotation

Kurşun, Hülya

doi:10.1080/01496395.2014.941876

Cited by 22 publications

(10 citation statements)

References 25 publications

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“…According to the knowledge of the authors no efforts were done to compare the effect of UP by using a laboratory ultrasound bath on the zinc flotation recovery from the same ore using MF and CF except for our works [1,2]. Therefore, the aim of this work is to review and compare the effect of UP on the MF [1] and CF [2] performances in terms of Zn grade and recovery using the same ore. By this review study let's look for the answer to some questions like which one is more effective in terms of separation recovery and zinc grade? Secondly, is ultrasound really affecting on these two different beneficiation techniques positively?…”

Section: Introductionmentioning

confidence: 99%

“…The flotation conditions optimized for both flotation experiments were as follows: For MF tests [1], effects of Potassium Amyl Xanthate (KAX) describe it fully dosage, CuSO 4 dosage, 2-ethyl hexanol dosage, residence time, stirring speed, and Na 2 SiO 3 dosage on MF performance were tested to hold the optimum conditions. For the effects of UP on MF tests, KAX dosage, CuSO 4 dosage, Aerofloat 211 dosage, Na 2 SiO 3 dosage, 2-ethyl hexanol dosage, optimum flotation time and stirring speed on the MF performance were set as 90 g/t, 400 g/t, 100 g/t, 50 g/t, 15 g/t, 4 min., and 1000 rpm, respectively.…”

Section: Introductionmentioning

confidence: 99%

“…For the effects of UP on MF tests, KAX dosage, CuSO 4 dosage, Aerofloat 211 dosage, Na 2 SiO 3 dosage, 2-ethyl hexanol dosage, optimum flotation time and stirring speed on the MF performance were set as 90 g/t, 400 g/t, 100 g/t, 50 g/t, 15 g/t, 4 min., and 1000 rpm, respectively. The effects of each parameter on the MF tests were already described in detail by the previous study [1].…”

Section: Introductionmentioning

confidence: 99%

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Review: Comparison of Ultrasonically Aided Zinc Beneficiation by Mechanical Flotation and Column Flotation Cell

Ulusoy

Kurşun

2021

Eureka: PE

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Zinc is a key beneficiary of economic development for the developing countries. While the global zinc mine production in 2019 was recorded as 13 million tons, the value of zinc mined in 2019, based on zinc contained in concentrate, was about $2.1 billion. Sphalerite or zinc blende (ZnS), which is the main source of zinc, provides more than 90 % of zinc productions today. Beneficiation is usually carried out by flotation to produce marketable concentrates (45–55 %Zn). The flotation, which is the most widely used separation process at fine sizes for the concentration of low grade complex Pb-Cu-Zn ores plays an important role in the global economy. In any concentration plant employing flotation technique huge quantity of ores are being processed. Thus, any increments in the flotation recovery are important to get higher profits and to ensure that resources are utilized optimally. In this review, a comparative evaluation was made between mechanical flotation (MF) [1] and column (CF) [2] cells with or without ultrasonic pre-treatment (UP) for zinc recovery from lead-zinc-copper ore and the effect of UP on the MF and CF experiments were investigated at the optimized conditions. When compared with the optimized parameters, UP increased zinc grade and recovery for both MF and CF techniques as supported by XRD patterns. Besides, the best zinc grade and recovery was obtained by UP with CF technique. So that, sphalerite mineral can be effectively beneficiated to produce saleable zinc concentrate product and UP with CF will lead to a higher metallurgical gains and improvements to Net Smelter Return (NSR). This positive effect of ultrasound, which is safe and eco-friendly, on the zinc flotation by both mechanical cell and column cell regarding zinc grade and recovery is in good agreement with the previous published works in the literature

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Section: Introductionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

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Review: Comparison of Ultrasonically Aided Zinc Beneficiation by Mechanical Flotation and Column Flotation Cell

Ulusoy

Kurşun

2021

Eureka: PE

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“…Ultrasonic application refers to sound waves that vibrate at a higher frequency than 20 kHz (Farmer et al, 2000;Chen et al, 2020). The prevalently used frequency range of ultrasonic application energy is about 20-100 kHz (Donskoi et al, 2012;Kursun, 2014;Ghadyani et al, 2018). It is proven that ultrasonic application shows considerable effects on the mineral surfaces such as cleaning, degradation, reduction, oxidation, activation, etc.…”

Section: Introductionmentioning

confidence: 99%

Investigating the effects of ultrasonic energy on the flotation behavior of pyrite and galena minerals

Horasan¹,

Tanriverdi²,

Çiçek³

et al. 2020

Physicochem. Probl. Miner. Process.

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Although pyrite is one of the more abundant minerals of the earth crust, it has low economic value. When it reports to the concentrate during flotation along with the valuable minerals, it decreases the grade of the valuable minerals and leads to an increase in smelting costs. Numerous modifications have been suggested in the literature to increase the selective recovery of pyrite containing base metalsulfide ores. The use of ultrasonic applications is one such method. In this study, the effect of the ultrasonic application on the flotation behavior of galena and pyrite mineral was investigated through systematic Hallimond Tube experiments. In the initial phase of the experiments, the optimum flotation conditions (particle size, pH, amount of air, and amount of reagent) were determined for the two minerals. Subsequent experiments were carried out under these optimums to distinguish the effect of the ultrasonic application. The influence of how the ultrasonic application was applied (i.e. before and during the conditioning stage or before the re-flotation of the concentrate) was also studied. It was observed that the ultrasonic application had a strong activating influence if it was administered before or during the conditioning stage. The effect was similar to whether the minerals were floated individually or from their mixtures. However, when it was applied to a flotation concentrate before reflotation, it selectively displayed a depressant action for the pyrite to the extent that no depressants were needed. The results conclusively showed that the ultrasonic application could drastically improve the selectivity of the complex ores.

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“…These cavitations take place primarily on the phase boundary since solid/liquid interactions are weaker than liquid cohesion forces [34][35][36][37][38][39]. When high temperature and pressure are attained inside the cavitation bubbles, their diameter exceeds a critical value, they collapse asymmetrically in the vicinity of solids present within the liquid [34][35][36][37][38][39][40][41]. Asymmetric collapse leads to the formation of high speed micro-jets that have the potential to remove the gangue constituents adhered on the surface of iron mineral particles [40,41].…”

Section: Introductionmentioning

confidence: 99%

Improvement of phosphorus removal from iron ore using combined microwave pretreatment and ultrasonic treatment

Omran

Fabritius

Elmahdy

et al. 2015

Separation and Purification Technology

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Most of the past studies examined the effects of ultrasonic treatment on the removal of phosphorus, silica and alumina minerals from iron ores. In the present work, the effect of combined microwave pretreatment and ultrasonic treatment on the efficiency of disintegration and removal of phosphorus and other gangue minerals associated with iron ores has been studied. Three different iron ore samples have varying total iron concentration (TFe) and P 2 O 5 content and mineralogical textures were studied. Microwave pretreatment generated intergranular fractures between the gangues (fluoroapatite and chamosite) and oolitic hematite. These intergranular fractures improved liberation of iron ore, and accelerated ultrasonic disintegration and removal of phosphorus and gangue minerals from oolitic hematite. The results indicated that microwave pretreatment increases the efficiency of ultrasonic disintegration and removal of particles by about 20% compared to untreated sample. The results of ultrasonic treatment are quite promising. Significant increase in iron grade and reduction in phosphorus and alumina content of enriched product can be obtained. Depending on the sample texture and phosphorus distribution, about 59 % phosphorus removal can be obtained.

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A Study on the Utilization of Ultrasonic Pretreatment in Zinc Flotation

Cited by 22 publications

References 25 publications

Review: Comparison of Ultrasonically Aided Zinc Beneficiation by Mechanical Flotation and Column Flotation Cell

Review: Comparison of Ultrasonically Aided Zinc Beneficiation by Mechanical Flotation and Column Flotation Cell

Investigating the effects of ultrasonic energy on the flotation behavior of pyrite and galena minerals

Improvement of phosphorus removal from iron ore using combined microwave pretreatment and ultrasonic treatment

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