98/02492 Study on stability of methane detection elements with supported catalysts used in coal mines : Li, X. and Chen, Y. Yunnan Daxue Xuebao, Ziran Kexueban, 1997, 19, (1), 96–99. (In Chinese)
- Book ID
- 104285796
- Publisher
- Elsevier Science
- Year
- 1998
- Weight
- 187 KB
- Volume
- 39
- Category
- Article
- ISSN
- 0140-6701
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✦ Synopsis
Analysis was carried out on respirable particles of high-percentage silica content from anthracite and bituminous coal mine dust samples for aluminosilicate clay surface coating. The analysis involved silicon and aluminium X-ray spectra using SEM-energy dispersive X-ray analysis (SEM-EDS). Silicon and aluminium elemental ratios were determined with incident electron energies of 20 and 5 keV to determine whether surface occlusion was present. For each of the 12 coal mine dust samples, some 20 respirable-sized, non-agglomerated particles with silicon fraction of signal ~75% were analysed. Mine dust samples were from US anthracite and bituminous coal mining regions involved in epidemiological studies of the US National Study of Coal Workers' Pneumoconiosis. 98102494