Mössbauer study of iron reduction in hematite containing mineral originated from Aswan area in Egypt

E. Kuzmann, N. Eissa, B. Molnár, A. Vértes

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Abstract

Mössbauer spectroscopy was used to study iron reduction in mineral originated from Aswan area in Egypt. The Mössbauer spectra of samples heat treated at 1000 °C in hydrogen atmosphere show a gradually reduction process of hematite. The main phase of sample aged for 1 h is magnetite, while alpha-iron as well as some silicates and wustite type oxide can be detected in sample aged for 3 h. Further aging of sample results in dissolution of alloying elements /Si, Al/, being present in the samples. This process starts already in samples aged at 1000 °C for 4 h, but it is more expressive in minerals heat treated at 1200 °C or 1300 °C, when all paramagnetic phases disappeared.

Original languageEnglish
Pages (from-to)169-176
Number of pages8
JournalJournal of Radioanalytical and Nuclear Chemistry Letters
Volume127
Issue number3
DOIs
Publication statusPublished - Jun 1 1988

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ASJC Scopus subject areas

  • Analytical Chemistry
  • Nuclear Energy and Engineering
  • Radiology Nuclear Medicine and imaging
  • Pollution
  • Spectroscopy
  • Public Health, Environmental and Occupational Health
  • Health, Toxicology and Mutagenesis

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