Extraction and flameless AAS determination of germanium in lignite fly ash

Journal Article · Fri Nov 01 04:00:00 EST 1985 · Anal. Lett.; (United States)

DOI:https://doi.org/10.1080/00032718508082585· OSTI ID:6207838

Papadoyannis, I N; Matis, K A; Zoumboulis, A I

The use of dicyclohexyl-18-crown-6 methyl isobutyl ketone solution in extraction and flameless atomic absorption spectrophotometry (AAS) determination of germanium in lignite fly ashes have been studied. Germanium is usually determined in lignites after the carbonaceous part of the sample has been burnt by a dry or wet ashing method. However, methods are described for direct determination of germanium. In the present paper a wet ashing method is reported for the determination of germanium in lignite fly ashes by flameless AAS after extraction into dicyclohexyl-18-crown-6 methyl isobutyl ketone (MIBK) solution. Solvent extraction is a known hydrometallurgical method that could be applied in germanium recovery. 16 references, 1 figure, 3 tables.

• Research Organization: Aristotelian Univ. of Thessaloniki, Greece
• OSTI ID: 6207838
• Journal Information: Anal. Lett.; (United States), Journal Name: Anal. Lett.; (United States) Vol. 18:A19; ISSN ANALB
• Country of Publication: United States
• Language: English

Related Subjects

01 COAL, LIGNITE, AND PEAT
010500 -- Coal
Lignite
& Peat-- Products & By-Products
010600 -- Coal
Lignite
& Peat-- Properties & Composition
37 INORGANIC, ORGANIC, PHYSICAL, AND ANALYTICAL CHEMISTRY
400104* -- Spectral Procedures-- (-1987)
ABSORPTION SPECTROSCOPY
AEROSOL WASTES
ASHES
BROWN COAL
CARBONACEOUS MATERIALS
CHEMICAL ANALYSIS
COAL
DATA
DISPERSIONS
ELEMENTS
ENERGY SOURCES
EXPERIMENTAL DATA
EXTRACTION
FLY ASH
FOSSIL FUELS
FUELS
GERMANIUM
INFORMATION
KETONES
LIGNITE
MATERIALS
METALS
METHYL ISOBUTYL KETONE
MIXTURES
NUMERICAL DATA
ORGANIC COMPOUNDS
QUANTITATIVE CHEMICAL ANALYSIS
RESIDUES
SEPARATION PROCESSES
SOLUTIONS
SOLVENT EXTRACTION
SOLVENT PROPERTIES
SPECTROPHOTOMETRY
SPECTROSCOPY
WASTES
WET ASHING