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Investigation of the kinetics of reduction of manganese tungstate by hydrogen
KTH, Superseded Departments, Materials Science and Engineering.ORCID iD: 0000-0002-3548-8638
KTH, Superseded Departments, Materials Science and Engineering.
2000 (English)In: Scandinavian journal of metallurgy, ISSN 0371-0459, Vol. 29, no 4, 151-155 p.Article in journal (Refereed) Published
Abstract [en]

The present work was carried out as a part of a research program studying the reduction kinetics of some transition metal tungstates. Manganese tungstate was reduced by hydrogen under isothermal conditions in the temperature range 883-1183 K. The reaction was round to take place in a single step with MnO and W as the solid products. The activation energy for the reduction of manganese tungstate was evaluated to be 92 kJ mol(-1) using the initial reaction rates. This activation energy was compared with the activation energies of the other transition metal tungstates in the light of bond strength of the metal-oxygen bonds.

Place, publisher, year, edition, pages
2000. Vol. 29, no 4, 151-155 p.
Keyword [en]
reduction, tungstate, kinetics, hydrogen, nonisothermal thermogravimetric method, metallic oxides
URN: urn:nbn:se:kth:diva-19866ISI: 000087955400003OAI: diva2:338558
QC 20100525Available from: 2010-08-10 Created: 2010-08-10Bibliographically approved

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