BARUAH , M K and KOTOKY , P and BARUAH , J and BORA , G C
(2005)
EXTENT OF LEAD IN HIGH-SULFUR ASSAM COALS.
FUEL PROCESSING TECHNOLOGY, 86 (6).
pp. 731-734.
Abstract
This study has been undertaken to understand the precise nature of association of lead in high
sulphur Assam coal. Sequential extraction of lead with ammonium acetate, HCl and RuCl 3 solutions
havebeen carriedout. RuCl3 hasbeenusedasasuitable reagent fortheextractionoflead.Itisfound
thattreatment ofsamplewithCCl 4increasestheextractionofleadbyRuCl 3solution. Theamountof
leadinthecoalstudiedvariesbetween43.2and50.4ppm.Ithasbeenfoundthatleadispredominantly
occurring in coals in association with organic matter and needs concerted attention to understand its
bio-availability. The chemical principles involved therein are also discussed.
D 2004 Elsevier B.V. All rights reserved.
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