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

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

Research output: Contribution to journalArticle

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
Volume127
Issue number3
DOIs
Publication statusPublished - Jun 1988

Fingerprint

Egypt
Hematite
Minerals
Iron
Hot Temperature
Ferrosoferric Oxide
Silicates
Magnetite
Alloying elements
Atmosphere
Oxides
Hydrogen
Spectrum Analysis
Dissolution
Aging of materials
Spectroscopy
ferric oxide
ferrous oxide

ASJC Scopus subject areas

  • Nuclear Energy and Engineering
  • Inorganic Chemistry
  • Analytical Chemistry

Cite this

Mössbauer study of iron reduction in hematite containing mineral originated from Aswan area in Egypt. / Kuzmann, E.; Eissa, N.; Molnár, B.; Vértes, A.

In: Journal of Radioanalytical and Nuclear Chemistry, Vol. 127, No. 3, 06.1988, p. 169-176.

Research output: Contribution to journalArticle

@article{898e69b6f647447cb0e1a366fb206a17,
title = "M{\"o}ssbauer study of iron reduction in hematite containing mineral originated from Aswan area in Egypt",
abstract = "M{\"o}ssbauer spectroscopy was used to study iron reduction in mineral originated from Aswan area in Egypt. The M{\"o}ssbauer 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.",
author = "E. Kuzmann and N. Eissa and B. Moln{\'a}r and A. V{\'e}rtes",
year = "1988",
month = "6",
doi = "10.1007/BF02164862",
language = "English",
volume = "127",
pages = "169--176",
journal = "Journal of Radioanalytical and Nuclear Chemistry",
issn = "0022-4081",
publisher = "Elsevier BV",
number = "3",

}

TY - JOUR

T1 - Mössbauer study of iron reduction in hematite containing mineral originated from Aswan area in Egypt

AU - Kuzmann, E.

AU - Eissa, N.

AU - Molnár, B.

AU - Vértes, A.

PY - 1988/6

Y1 - 1988/6

N2 - 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.

AB - 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.

UR - http://www.scopus.com/inward/record.url?scp=34250093503&partnerID=8YFLogxK

UR - http://www.scopus.com/inward/citedby.url?scp=34250093503&partnerID=8YFLogxK

U2 - 10.1007/BF02164862

DO - 10.1007/BF02164862

M3 - Article

VL - 127

SP - 169

EP - 176

JO - Journal of Radioanalytical and Nuclear Chemistry

JF - Journal of Radioanalytical and Nuclear Chemistry

SN - 0022-4081

IS - 3

ER -