Simultaneous determination of minor and trace elements in coal using instrumental neutron activation analysis

Technical Report · Tue Aug 01 04:00:00 EDT 1978

DOI:https://doi.org/10.2172/6652036· OSTI ID:6652036

Clark, L. Jr.

The INAA procedure developed in this work is a rapid, accurate, and precise method for determining minor and trace elements (Al, Br, Ca, Cl, Mg, Mn, Ti, V) in coal. This procedure allows the determination of elements with half-lives <10 min which is not usually accomplished by other INAA techniques. The results obtained for the NBS coal are in good agreement with the literature values. The accuracy and the precision is very good. However, the precision of the determinations of the iowa coals was poor. This precision can probably be improved by using better collection, mixing, and drying techniques for the sample. The cleaning procedure used by the ISU Coal Refining Plant appears to remove trace and minor elements as well as sulfur and iron from coal. However, the amount of the element removed seems to depend on the coal in which it is contained. This may be due to the way the element is chemically bound in the coal. However, before any conclusions are drawn, additional analyses should be made on samples taken from the coal and dried with greater care.

• Research Organization: Ames Lab., IA (USA)
• DOE Contract Number: W-7405-ENG-82
• OSTI ID: 6652036
• Report Number(s): IS-T-817
• Country of Publication: United States
• Language: English

Related Subjects

01 COAL, LIGNITE, AND PEAT
010600 -- Coal
Lignite
&amp; Peat-- Properties &amp; Composition
37 INORGANIC, ORGANIC, PHYSICAL, AND ANALYTICAL CHEMISTRY
400101* -- Activation
Nuclear Reaction
Radiometric &amp; Radiochemical Procedures
ACCURACY
ACTIVATION ANALYSIS
ALKALINE EARTH METALS
ALUMINIUM
BARYON REACTIONS
BROMINE
CALCIUM
CARBONACEOUS MATERIALS
CHEMICAL ANALYSIS
CHLORINE
COAL
ELEMENTS
ENERGY SOURCES
FOSSIL FUELS
FUELS
HADRON REACTIONS
HALOGENS
MAGNESIUM
MANGANESE
METALS
NEUTRON REACTIONS
NONDESTRUCTIVE ANALYSIS
NONMETALS
NUCLEAR REACTIONS
NUCLEON REACTIONS
QUANTITATIVE CHEMICAL ANALYSIS
SENSITIVITY
TITANIUM
TRACE AMOUNTS
TRANSITION ELEMENTS
VANADIUM