Production of ultra clean coal, Part III. Effect of coal’s carbonaceous matrix on the dissolution of mineral matter using hydrofluoric acid

Steel, KM, Besida, J, O'Donnell, TA and Wood, DG (2002) Production of ultra clean coal, Part III. Effect of coal’s carbonaceous matrix on the dissolution of mineral matter using hydrofluoric acid. Fuel Processing Technology, 76 1: 51-59. doi:10.1016/S0378-3820(02)00017-6


Author Steel, KM
Besida, J
O'Donnell, TA
Wood, DG
Title Production of ultra clean coal, Part III. Effect of coal’s carbonaceous matrix on the dissolution of mineral matter using hydrofluoric acid
Journal name Fuel Processing Technology   Check publisher's open access policy
ISSN 0378-3820
Publication date 2002-04-01
Year available 2002
Sub-type Article (original research)
DOI 10.1016/S0378-3820(02)00017-6
Open Access Status
Volume 76
Issue 1
Start page 51
End page 59
Total pages 9
Place of publication AMSTERDAM
Publisher ELSEVIER SCIENCE BV, PO BOX 211, 1000 AE AMSTERDAM, NETHERLANDS
Language eng
Abstract An Australian bituminous coal was treated with increasing concentrations of hydrofluoric acid (HF), and the extraction levels of Al, Si, Fe, Ti, K, Na, Ca and Mg were determined. These extraction levels were compared to those obtained when the mineral matter alone, produced by ashing the coal at a low temperature, was treated with HF, in order to quantify the extent that the carbonaceous matrix inhibits extraction. The carbonaceous matrix inhibits the dissolution of Ti to a large extent. Si and Fe are the next most inhibited elements. It is proposed that the Ti is present as extremely small particles, of possibly less than 1 mum in length, which are finely disseminated throughout the coal.
Keyword Ultra Clean Coal
Coal demineralisation
Hydrofluoric acid
Q-Index Code C1
Q-Index Status Provisional Code
Institutional Status Unknown

Document type: Journal Article
Sub-type: Article (original research)
Collection: Faculty of Engineering, Architecture and Information Technology Publications
 
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Created: Sat, 11 Jul 2009, 01:21:19 EST by Dr Karen Steel on behalf of School of Chemical Engineering