<報文>石炭及び亜炭の中の稀元素の研究(第3報) : 亜炭の中のゲルマニウム

概要

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Concentration of germanium in lignite bed was studied. Usually the top or bottom layers of coal beds showed the highest concentrations of germanium. In the middle layers, germanium content was meager. It was also found that amounts of germanium in lignites were not direct of dependendable on ash contents. It is, therfore, considered that germanium is concentrated in lignite by adsorption of it from ground water which contains the germanium in soluble form. It also bears no relation to the content of organic components, such as, bitumen, cellulose, humic acids and lignin. It was found from the results of the studies on the physical properties of certain lignites, namely, surface area, porocity and capillary volume, that germanium is concentrated in capillary rich anthraxylons. In certain cases, separate lignitic log concentrated germanium as much as 1972 ppm calculated in ashless coal.
東北大学の論文
1957-02-20