Analysis of sub-micron minral matter in coal via scanning transmission electron microscopy

Technical Report · Sat May 01 04:00:00 EDT 1982

OSTI ID:5320066

Allen, R M; VanderSande, J B

The fine-scale mineral matter in three US coals has been analyzed via scanning transmission electron microscopy (STEM). The samples observed were a North Dakota lignite, a Kentucky bituminous, and a Pennsylvania anthracite. Specific mineral types, differing among the three coals examined, appear to predominate at this fine size scale (particles less than or equal to 200nm in diameter). Fe-rich and Ba-rich minerals in the lignite, a Ti-rich mineral in the bituminous, and Ca-rich and Ti-rich minerals in the anthracite were the predominant species found. The inherent mineral content in the observed organic background also differs from coal to coal. The distributions of mineral species in the size range less than or equal to 200nm reported herein do not reflect the distributions in the larger size ranges obtained by more macroscopic techniques.

• Research Organization: Sandia National Labs., Livermore, CA (USA); Massachusetts Inst. of Tech., Cambridge (USA). Dept. of Materials Science and Engineering
• DOE Contract Number: AC04-76DP00789
• OSTI ID: 5320066
• Report Number(s): SAND-82-8677; ON: DE82018614
• Country of Publication: United States
• Language: English

Related Subjects

01 COAL, LIGNITE, AND PEAT
010600* -- Coal
Lignite
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ALKALINE EARTH METAL COMPOUNDS
ALUMINIUM COMPOUNDS
ALUMINIUM SILICATES
ANTHRACITE
ASHES
BITUMINOUS COAL
BLACK COAL
BROWN COAL
CALCITE
CALCIUM CARBONATES
CALCIUM COMPOUNDS
CALCIUM SULFATES
CARBON COMPOUNDS
CARBONACEOUS MATERIALS
CARBONATE MINERALS
CARBONATES
CHALCOGENIDES
CHEMICAL ANALYSIS
CHEMICAL COMPOSITION
CLAYS
COAL
DATA
ELECTRON MICROSCOPY
ENERGY SOURCES
EXPERIMENTAL DATA
FOSSIL FUELS
FUELS
GYPSUM
ILLITE
INFORMATION
INORGANIC ION EXCHANGERS
ION EXCHANGE MATERIALS
IRON CARBONATES
IRON COMPOUNDS
IRON ORES
IRON SULFIDES
KAOLINITE
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ORES
OXIDE MINERALS
OXIDES
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PYRITE
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RADIOACTIVE MATERIALS
RADIOACTIVE MINERALS
RESIDUES
RUTILE
SIDERITE
SILICATE MINERALS
SILICATES
SILICON COMPOUNDS
SILICON OXIDES
SULFATE MINERALS
SULFATES
SULFIDE MINERALS
SULFIDES
SULFUR COMPOUNDS
TITANIUM COMPOUNDS
TITANIUM OXIDES
TRANSITION ELEMENT COMPOUNDS
X-RAY EMISSION ANALYSIS