Fluorescent X-ray Analysis of Iron Content in Iron Ores
نویسندگان
چکیده
منابع مشابه
Determination of Relationship between Autoignition of Sponge Iron and Specification of the Iron Ores
Sponge iron (DRI) due to the high surface area, often shows a high tendency to re-oxidation and at some cases spontaneous combustion (autoignition). In this work, re-oxidation behavior and autoignition of sponge iron, produced from different types of iron ore has been investigated. Isothermal and non-isothermal re-oxidation experiments were carried out on each type of DRI and their autoignition...
متن کاملDetermination of Relationship between Autoignition of Sponge Iron and Specification of the Iron Ores
Sponge iron (DRI) due to the high surface area, often shows a high tendency to re-oxidation and at some cases spontaneous combustion (autoignition). In this work, re-oxidation behavior and autoignition of sponge iron, produced from different types of iron ore has been investigated. Isothermal and non-isothermal re-oxidation experiments were carried out on each type of DRI and their autoignition...
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Recent observations of X–ray afterglows reveal the presence of a redshifted Kα iron line in emission in four bursts. In GRB 991216, the line was detected by the low energy grating of Chandra, which showed the line to be broad, with a full width of ∼15,000 km s. These observations indicate the presence of a > 1 M⊙ of iron rich material in the close vicinity of the burst, most likely a supernova ...
متن کاملEffect of iron ionization balance on X-ray spectral analysis
Wehave investigated the uncertainty in the ionization and recombination rates for iron and its impact on the derivation of the iron elemental abundance fromX-ray emission spectra. Most uncertainty is found in the dielectronic recombination rates for iron ions with L-shell outer electrons. The quantitative effect of this uncertainty on the derivation of the iron abundance depends on the spectral...
متن کاملContent and binding forms of heavy metals, aluminium and phosphorus in bog iron ores from Poland.
Bog iron ores are widespread in Polish wetland soils used as meadows or pastures. They are suspected to contain high concentrations of heavy metals, which are precipitated together with Fe along a redox gradient. Therefore, soils with bog iron ore might be important sources for a heavy metal transfer from meadow plants into the food chain. However, this transfer depends on the different binding...
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ژورنال
عنوان ژورنال: Tetsu-to-Hagane
سال: 1974
ISSN: 0021-1575,1883-2954
DOI: 10.2355/tetsutohagane1955.60.13_1900