Comparison of inorganics in three low-rank coals
- Dept. of Energy, Grand Forks, ND
A brief description of the problems involved with the combustion of low-rank coals was presented. Two samples of lignite, from the Beulah mine, North Dakota, and the Bryan mine, Texas, and one sample of subbituminous coal from the Rosebud mine, Montana, were collected and analyzed. The samples were extracted using ammonium acetate and hydrochloric acid, and the extracted portion analyzed. The data of the chemical analysis were presented in tabular form. Several conclusions were derived from the data: (1) 48% of the total inorganics of the Beulah are removed with ammonium acetate, by far the highest of the 3 coals; (2) Bryan, Texas, lignite consists of mostly extraneous mineral matter including clays and quartz minerals; (3) the Rosebud subbituminous has higher percentages of Mg, Ca, and Sr associated as carbonates, revealed in the HCl extractions.
- OSTI ID:
- 5729959
- Report Number(s):
- CONF-830303-
- Journal Information:
- Prepr. Pap. - Am. Chem. Soc., Div. Fuel Chem.; (United States), Journal Name: Prepr. Pap. - Am. Chem. Soc., Div. Fuel Chem.; (United States) Vol. 28:2; ISSN ACFPA
- Country of Publication:
- United States
- Language:
- English
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Related Subjects
010600* -- Coal
Lignite
& Peat-- Properties & Composition
ACETATES
BROWN COAL
CARBONACEOUS MATERIALS
CARBOXYLIC ACID SALTS
CHEMICAL ANALYSIS
CHEMICAL COMPOSITION
COAL
ENERGY SOURCES
EXTRACTION
FOSSIL FUELS
FUELS
HYDROCHLORIC ACID
HYDROGEN COMPOUNDS
INORGANIC ACIDS
INORGANIC COMPOUNDS
LIGNITE
MATERIALS
SEPARATION PROCESSES
SOLVENT EXTRACTION
SUBBITUMINOUS COAL