Evaluation of the effect of coal cleaning on fugitive elements. Phase IV. Identification of mineral forms in coal. Quarterly progress report No. 11, December 1, 1985-February 28, 1986

Technical Report · Thu Mar 20 04:00:00 EST 1986

OSTI ID:5973955

Streeter, R C

Work has progressed on a procedure for the direct determination of selenium, arsenic, mercury, and antimony using the graphite furnace/atomic absorption system. Reasonable values for selenium were obtained, although experimental difficulties were encountered during the arsenic and mercury determinations. Trace element determinations for Ni, Be, Sr, Co, Pb, Cd, Cu, and Zn were completed for CP coal sample. Preliminary data have been obtained on the mineral constituents present in low-temperature ash samples of the AP coal. Minerals identified so far include kaolinite, ..cap alpha..-quartz, and pyrite. The LTA sample from one portion of the coal that had aged about three months showed definite evidence for the oxidation of pyrite (FeS/sub 2/) to coquimbite (Fe/sub 2/(SO/sub 4/)/sub 3/.9H/sub 2/O). As noted in Quarterly Progress Report No. 10, the ash content of the CP product coal sample was determined to be 0.4% compared to a value of 0.52% reported by the coal suppliers. The ash in one case was prepared essentially by the ASTM procedure to constant weight. For the second ash determination, the coal was treated with sulfuric acid before ashing. Within experimental error, both ashes were the same percentage of the coal (0.4%), but each was analyzed separately. 4 tabs.

• Research Organization: BCR National Lab., Monroeville, PA (USA)
• DOE Contract Number: AC22-83PC62690
• OSTI ID: 5973955
• Report Number(s): DOE/PC/62690-T6; ON: DE86009825
• Country of Publication: United States
• Language: English

Related Subjects

01 COAL, LIGNITE, AND PEAT
010600* -- Coal
Lignite
& Peat-- Properties & Composition
013000 -- Coal
Lignite
& Peat-- Transport
Handling
& Storage
37 INORGANIC, ORGANIC, PHYSICAL, AND ANALYTICAL CHEMISTRY
400104 -- Spectral Procedures-- (-1987)
ABSORPTION SPECTROSCOPY
ALKALINE EARTH METALS
ALUMINIUM COMPOUNDS
ALUMINIUM SILICATES
ASH CONTENT
ASHES
BERYLLIUM
CADMIUM
CARBONACEOUS MATERIALS
CHALCOGENIDES
CHEMICAL ANALYSIS
CLEANING
COAL
COBALT
COPPER
DATA
ELEMENTS
EMISSION SPECTROSCOPY
ENERGY SOURCES
EXPERIMENTAL DATA
FOSSIL FUELS
FUELS
INFORMATION
IRON COMPOUNDS
IRON SULFIDES
KAOLINITE
LEAD
MATERIALS
METALS
MINERALOGY
MINERALS
NICKEL
NUMERICAL DATA
OXIDE MINERALS
OXIDES
OXYGEN COMPOUNDS
PYRITE
QUANTITATIVE CHEMICAL ANALYSIS
QUARTZ
RESEARCH PROGRAMS
RESIDUES
SILICATE MINERALS
SILICATES
SILICON COMPOUNDS
SILICON OXIDES
SPECTROSCOPY
STRONTIUM
SULFIDE MINERALS
SULFIDES
SULFUR COMPOUNDS
TRACE AMOUNTS
TRANSITION ELEMENT COMPOUNDS
TRANSITION ELEMENTS
ZINC