Concentration of Germanium in Lignite Deposits

Isolated lignite deposits in coal beds are always rich in germanium. Lignites and vitrains in coal beds are generally characterized by elevated germanium content, but anomalous concentrations are only seen in germanium-bearing coal beds. In coal fields, germanium is systematically observed at backgr...

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Published inCoke and chemistry (New York, N.Y.) Vol. 62; no. 10; pp. 437 - 446
Main Author Admakin, L. A.
Format Journal Article
LanguageEnglish
Published Moscow Pleiades Publishing 01.10.2019
Springer Nature B.V
Subjects
Chemistry
Chemistry and Materials Science
Coal
Deposits
Germanium
Grain size
Industrial Chemistry/Chemical Engineering
Lignite
State court decisions
vitrains
lignites
infiltration solutions
microelements
coal
delta deposits
germanium-bearing coal beds
germanium
local indicators
predictions
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Summary:Isolated lignite deposits in coal beds are always rich in germanium. Lignites and vitrains in coal beds are generally characterized by elevated germanium content, but anomalous concentrations are only seen in germanium-bearing coal beds. In coal fields, germanium is systematically observed at background levels in coal, but coal with high and anomalous levels is rare. Such coal beds are localized in delta deposits, with large grain size and distinctive tilted bed structure. It appears that the germanium is associated with normal infiltration solutions, as confirmed by the lack of any visual changes in the coal and surrounding rock. In a humid climate, such solutions are common. That explains the systematically high germanium content in isolated lignite deposits. Local indicators of germanium-bearing coal beds are considered.
ISSN:1068-364X
1934-8398
DOI:10.3103/S1068364X19100028