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Statements

Subject Item
n2:RIV%2F61989100%3A27360%2F01%3A00000841%21RIV%2F2002%2FGA0%2F273602%2FN
rdf:type
skos:Concept n18:Vysledek
dcterms:description
Bituminous coal seams in proximity to or in direct contact with red beds bodies of the Upper Silesian Coal Basin were altered by oxidation. This contribution is concerned with oxidative altered coal from Lazy Mine, Landek Hill where coal seams crop out at the surface and laboratory oxidized coal. All this coal can be characterized namely by retrogradely formed humic acids. Propensity of coal to oxidation was laboratory tested on two different coal samples. From laboratory results the kinetics of coal oxidation for temperature interval from 150 to 300oC was evaluated. Using the extrapolation it was calculated time needed for the formation of 1% of humic acids at 25oC. Chemical composition and structure of coal samples and their humic acids suggest that coal in proximity of variegated body deposited now approximately 300m below paleorelief is very similar to weathered coal from Landek Hill and also to laboratory oxidized coal at temperature below 150oC. Bituminous coal seams in proximity to or in direct contact with red beds bodies of the Upper Silesian Coal Basin were altered by oxidation. This contribution is concerned with oxidative altered coal from Lazy Mine, Landek Hill where coal seams crop out at the surface and laboratory oxidized coal. All this coal can be characterized namely by retrogradely formed humic acids. Propensity of coal to oxidation was laboratory tested on two different coal samples. From laboratory results the kinetics of coal oxidation for temperature interval from 150 to 300oC was evaluated. Using the extrapolation it was calculated time needed for the formation of 1% of humic acids at 25oC. Chemical composition and structure of coal samples and their humic acids suggest that coal in proximity of variegated body deposited now approximately 300m below paleorelief is very similar to weathered coal from Landek Hill and also to laboratory oxidized coal at temperature below 150oC.
dcterms:title
Humic acids oxidatively altered bituminous coal Humic acids oxidatively altered bituminous coal
skos:prefLabel
Humic acids oxidatively altered bituminous coal Humic acids oxidatively altered bituminous coal
skos:notation
RIV/61989100:27360/01:00000841!RIV/2002/GA0/273602/N
n3:strany
6-9
n3:aktivita
n6:P
n3:aktivity
P(GA105/99/0225)
n3:cisloPeriodika
1
n3:dodaniDat
n10:2002
n3:domaciTvurceVysledku
n9:3895610 n9:2173220 n9:6362125
n3:druhVysledku
n8:J
n3:duvernostUdaju
n12:S
n3:entitaPredkladatele
n4:predkladatel
n3:idSjednocenehoVysledku
682065
n3:idVysledku
RIV/61989100:27360/01:00000841
n3:jazykVysledku
n17:eng
n3:klicovaSlova
coal oxidation, humic acids, variegated beds bodies
n3:klicoveSlovo
n16:humic%20acids n16:variegated%20beds%20bodies n16:coal%20oxidation
n3:kodStatuVydavatele
US - Spojené státy americké
n3:kontrolniKodProRIV
[BF56AB393BD2]
n3:nazevZdroje
Peoceedings of the 11 th International Conference on Coal Science
n3:obor
n14:DB
n3:pocetDomacichTvurcuVysledku
3
n3:pocetTvurcuVysledku
3
n3:pocetUcastnikuAkce
0
n3:pocetZahranicnichUcastnikuAkce
0
n3:projekt
n13:GA105%2F99%2F0225
n3:rokUplatneniVysledku
n10:2001
n3:svazekPeriodika
11
n3:tvurceVysledku
Klika, Zdeněk Kurková, Monika Ritz, Michal
s:numberOfPages
4
n15:organizacniJednotka
27360