Varieties of sulphur in low-rank Hungarian coals
In this paper altogether 17 brown coal and lignite samples have been studied from different parts of Hungary. Both low-rank coals were deposited under freshwater conditions. Most of the samples are characterised by relatively low amounts of total sulphur content. The total sulphur content in Oligoce...
Elmentve itt :
| Szerző: | |
|---|---|
| Dokumentumtípus: | Cikk |
| Megjelent: |
University of Szeged, Department of Mineralogy, Geochemistry and Petrology
Szeged
1997
|
| Sorozat: | Acta mineralogica-petrographica
38 |
| Kulcsszavak: | Kőzettan, Ásványtan, Földtan |
| Tárgyszavak: | |
| Online Access: | http://acta.bibl.u-szeged.hu/24848 |
| Tartalmi kivonat: | In this paper altogether 17 brown coal and lignite samples have been studied from different parts of Hungary. Both low-rank coals were deposited under freshwater conditions. Most of the samples are characterised by relatively low amounts of total sulphur content. The total sulphur content in Oligocene brown coals from Vertessomlo is the least average value (0.8%) among Hungarian brown coals. The sequence of distribution of sulphur among the different bond forms in them is the same as in other, samples of different Transdanubian brown coal mines: organic sulphur > pyritic sulphur > sulphate sulphur. The lignite samples from BUkkabrany are characterised by relatively low amount (average: 1.3%) of total sulphur content. The moisture in lignite samples is fairly abundant, averagely 40.5%. The comparison of the Pliocene lignite of BUkkabrany with other Hungarian brown coals, according to their average total sulphur content on dry, ash-free basis (2.9%) indicated that they belong to the coal moderately rich in sulphur. In lignites at BUkkabrany organic sulphur and sulphate content dominate usually, and pyrite is minor. The relatively high sulphate concentration of lignites indicate that these samples are weathered or oxidized. |
|---|---|
| Terjedelem/Fizikai jellemzők: | 65-72 |
| ISSN: | 0365-8066 |