Electrostatic beneficiation of coal. Quarterly technical progress report, April 1--June 30, 1995

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A chamber has been set up for exposing ground coal to controlled relative humidities. Four levels in the range of 10% to 95% are planned. The change in moisture content of the coal powders will be determined after exposure. Charge to mass ratio acquired in tribocharging and the degree of electrostatic beneficiation will be determined as a function of the relative humidity used for each of the exposures. The authors also discuss their progress in grinding of the coal; the low percentage of coal recovered after separation and the possibility that these losses were a result of holdup in the ... continued below

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33 p.

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Mazumder, M.K.; Lindquist, D. & Tennal, K.B. July 1, 1995.

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Description

A chamber has been set up for exposing ground coal to controlled relative humidities. Four levels in the range of 10% to 95% are planned. The change in moisture content of the coal powders will be determined after exposure. Charge to mass ratio acquired in tribocharging and the degree of electrostatic beneficiation will be determined as a function of the relative humidity used for each of the exposures. The authors also discuss their progress in grinding of the coal; the low percentage of coal recovered after separation and the possibility that these losses were a result of holdup in the expansion cone; the design and modeling of the electric curtain; particle size measurement using image processing; and the petrographic analyses of finely and coarsely ground Illinois No. 6 coal.

Physical Description

33 p.

Notes

OSTI as DE98051880

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  • Other Information: PBD: Jul 1995

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  • Other: DE98051880
  • Report No.: DOE/PC/93203--T11
  • Grant Number: FG22-93PC93203
  • DOI: 10.2172/650116 | External Link
  • Office of Scientific & Technical Information Report Number: 650116
  • Archival Resource Key: ark:/67531/metadc708602

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  • July 1, 1995

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  • Sept. 12, 2015, 6:31 a.m.

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  • Nov. 10, 2015, 7:34 p.m.

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Mazumder, M.K.; Lindquist, D. & Tennal, K.B. Electrostatic beneficiation of coal. Quarterly technical progress report, April 1--June 30, 1995, report, July 1, 1995; United States. (digital.library.unt.edu/ark:/67531/metadc708602/: accessed August 18, 2017), University of North Texas Libraries, Digital Library, digital.library.unt.edu; crediting UNT Libraries Government Documents Department.