Staff Publications

Staff Publications

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    'Staff publications' is the digital repository of Wageningen University & Research

    'Staff publications' contains references to publications authored by Wageningen University staff from 1976 onward.

    Publications authored by the staff of the Research Institutes are available from 1995 onwards.

    Full text documents are added when available. The database is updated daily and currently holds about 240,000 items, of which 72,000 in open access.

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Record number 365724
Title Mineralogy and geochemistry of density-separated Greek lignite fractions
Author(s) Iordanidis, A.; Doesburg, J.D.J. van
Source Energy Sources. Part A, Recovery Utilization and Environmental Effects 28 (2006)1-3. - ISSN 1556-7036 - p. 19 - 24.
Department(s) Laboratory of Soil Science and Geology
Publication type Refereed Article in a scientific journal
Publication year 2006
Keyword(s) trace-elements - coal fractions
Abstract In this study, lignite samples were collected from the Ptolemais region, northern Greece, homogenized, crushed to less than I nun, and separated in three density fractions using heavy media. The mineralogical investigation of the density fractions showed a predominance of pyrite in the light fractions, a fact that might be related to either the poor separation or pyrite being trapped between relatively large pure coal particles during the density fractionation. The geochemical analysis revealed that arsenic (As) and boron (B) tend to concentrate in the lighter fractions, while iron (Fe), magnesium (Mg), nickel (Ni), cobalt (Co), manganese (Mn), lead (Pb), and chromium (Cr) are associated with the heavier fractions. No clear indications were drawn for calcium (Ca), selenium (Se), copper (Cu), zinc (Zn), and phosphorus (P).
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