Properties and reactions exhibited by anthracite lithotypes under thermal stress
Technical Report
·
OSTI ID:7209404
Petrographically distinct particles of anthracite 6 x 10 and 10 x 14 mesh in size have been visually observed in the 20/sup 0/C to 980/sup 0/C temperature range. The investigation was conducted utilizing a Leitz 0 to 1000/sup 0/C heating stage mounted on a Panphot microscope. Four microlithotypes have been identified for this study: vitrain, clarain, durain, and fusain. Preheat treatment of anthracite particles reduces visible decrepitation. Only durain shows a tendency toward increased decrepitation with increase in particle size. The studies indicate a resistance to thermal shock for the petrographic entities in the increasing order of: (1) fusain, (2) clarain, (3) vitrain, and (4) durain.
- Research Organization:
- Pennsylvania State Univ., University Park (USA). Mineral Industries Experiment Station
- OSTI ID:
- 7209404
- Report Number(s):
- NP-22735
- Country of Publication:
- United States
- Language:
- English
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