Determining independent control of dual-frother systems – Gas holdup, bubble size and water overflow rate

Zhang, Wei; Zhou, Xiang; Finch, J.A.

doi:10.1016/j.mineng.2012.08.008

Cited by 20 publications

(6 citation statements)

References 34 publications

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“…Furthermore, the presence of reagent allows for higher values to be attained compared to the water system. This is in agreement with previous studies (Zhang et al, 2012;Maldonado et al, 2013), in which the mechanisms of frother action on bubble rise velocity, size and gas holdup are investigated in detail.…”

Section: Calibration Of Modelsupporting

confidence: 93%

A dynamic model for level prediction in aerated tanks

Shean

Hadler

Neethling

et al. 2018

Minerals Engineering

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Section: Calibration Of Modelsupporting

confidence: 93%

A dynamic model for level prediction in aerated tanks

Shean

Hadler

Neethling

et al. 2018

Minerals Engineering

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“…Tese are the tiny particles of graphite. Figure 2 shows an example of fotation cell, as reported by Kuan [50]. In mechanical fotation cells, froth is produced by agitation with a rotating impeller.…”

Section: Flotation By Mechanicalmentioning

confidence: 99%

A Mini Review on Flotation Techniques and Reagents Used in Graphite Beneficiation

Vasumathi

Sarjekar

Chandrayan

et al. 2023

International Journal of Chemical Engineering

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Due to its numerous and major industrial uses, graphite is one of the significant carbon allotropes. Refractories and batteries are only a couple of the many uses for graphite. A growing market wants high-purity graphite with big flakes. Since there are fewer naturally occurring high-grade graphite ores, low-grade ores must be processed to increase their value to meet the rising demand, which is predicted to increase by >700% by 2025 due to the adoption of electric vehicles. Since graphite is inherently hydrophobic, flotation is frequently used to beneficiate low-grade ores. The pretreatment process, both conventional and unconventional; liberation/grinding methods; flotation methods like mechanical froth flotation, column flotation, ultrasound-assisted flotation, and electroflotation; and more emphasis on various flotation reagents are all covered in this review of beneficiation techniques. This review also focuses on the different types of flotation reagents that are used to separate graphite, such as conventional reagents and possible nonconventional environmentally friendly reagents.

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“…There are two potential problems with this type of approach [ 6 ]. Firstly, control of flotation conditions is reduced when using one reagent with dual functions [ 13 , 14 , 15 , 16 ]. Secondly, amines are expensive reagents, and it may be financially lucrative to replace them with cheaper frothers [ 17 ].…”

Section: Introductionmentioning

confidence: 99%

The effects of partially replacing amine collectors by a commercial frother in a reverse cationic hematite flotation

Kapiamba

Kimpiab

2021

Heliyon

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Iron ore froth flotation has recently been used to obtain pure minerals due to the depletion of high-grade deposits. Amine collectors have often been used in cationic reverse iron ore flotation to achieve the separation with quartz impurities. The main problem associated with these collectors is related to the control of frothing properties and the high cost of amine reagents. In this paper, we report the benefits of partial replacement of amine collectors with a frother in reverse cationic flotation of hematite. Surface tension and batch flotation experimental results indicated for the first time that replacing Flotigam EDA, an etheramine collector by more than 10% improved the flotation performance in both grade and recovery of hematite. It was also noted mild hematite entrainments for lower frother dosages whilst reagents cost estimation indicated profitability per ton of iron recovered. At higher frother dosage however, higher quartz recoveries were observed as a result of entrainment which led to satisfactory results in terms of iron grade in the sink, but results showed higher costs of reagents than when collector was used alone. From observed results, it was concluded that partially replacing amine collector by a frother does improve the performance of the flotation globally regardless of pronounced entrainment that was mainly due the mineralogy of the ore with notable amounts of locked particles in the lower sizes. Finally, it would be useful to investigate these findings with alternative reagents and on minerals with different mineralogical properties.

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Determining independent control of dual-frother systems – Gas holdup, bubble size and water overflow rate

Cited by 20 publications

References 34 publications

A dynamic model for level prediction in aerated tanks

A dynamic model for level prediction in aerated tanks

A Mini Review on Flotation Techniques and Reagents Used in Graphite Beneficiation

The effects of partially replacing amine collectors by a commercial frother in a reverse cationic hematite flotation

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