Study on flotation characteristics of oxidised Indian high ash sub-bituminous coal

Jena, M. S.; Biswal, S.K.; Rudramuniyappa, M

doi:10.1016/j.minpro.2008.01.004

Cited by 112 publications

(29 citation statements)

References 10 publications

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“…The solids concentration was brought down to 10 % by adding additional water in the cell. After that the required amount of MIBC was added as frother and conditioned for 1 min [6]. Then the three stage cell flotation was carried out using the induced air based on the preliminary observations using the cells of different volumes as per requirements to maintain the required solid concentration.…”

Section: Methodsmentioning

confidence: 99%

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Recovery of Clean Coal from Washery Rejects by Flotation

Jena

Priyadarsini

Tripathy

et al. 2014

Trans Indian Inst Met

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Attempts have been made to recover the additional clean coal from the rejects generated by the heavy media bath of a coking coal washery in Eastern India. As received rejects sample contains around 18.68 % volatile matter, 43.24 % ash and 38.08 % fixed carbon on dry basis. Beneficiation study by conventional cell flotation has been carried out to examine the possibility of reducing the ash content of the sample. But liberation of clean coal from rejects is required before subjecting to any separation process. The reject coal is ground to different particle size and separated by froth flotation. An attempt has been made to systematically analyse the factors influencing the flotation process using the technique of statistical design of experiments. Studies have been conducted at different operating conditions. It is possible to get clean coal with 19.68 % ash at 32.45 % yield and 45.57 % combustible recovery from the reject coal with 43.24 % ash.

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Section: Methodsmentioning

confidence: 99%

“…The coarse size of the coal is treated by using heavy media bath/cyclone or jig etc. whereas below 0.5 mm size coal is treated in flotation circuit to improve the quality of the coal fines [4][5][6].…”

Section: Introductionmentioning

confidence: 99%

Recovery of Clean Coal from Washery Rejects by Flotation

Jena

Priyadarsini

Tripathy

et al. 2014

Trans Indian Inst Met

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show abstract

“…Flotation characteristics of oxidized Indian high ash subbituminous coal from Talcher coal field, India were studied by Jena et al [48]. Initially the flotation study was carried out using conventional reagents only in a Denver D-12 sub-aeration flotation cell.…”

Section: Froth Flotationmentioning

confidence: 99%

Demineralization of low grade coal – A review

Meshram

Purohit

Sinha

et al. 2015

Renewable and Sustainable Energy Reviews

152

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“…Jean et al [116] used a long-chain carbon atoms reagent named 'black oil' to enhance the flotation recovery of oxidized Indian high ash sub-bituminous coal. The experiments were conducted at different collector dosages with 0.5 ml of black oil per kg of coal samples.…”

Section: Flotationmentioning

confidence: 99%