Spinel crystals in tuyere coke

A number of dodecahedral and octahedral spinel crystals were found in tuyere coke. The possibility of spinel formation from a gas phase in the tuyere coke can be considered for dodecahedral crystals. The octahedral spinels may have been formed by annealing of precursor mineral aggregates followed by...

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Bibliographic Details
Published in:Metallurgical and materials transactions. B, Process metallurgy and materials processing science Process metallurgy and materials processing science, 2005-04, Vol.36 (2), p.303-305
Main Authors: GORNOSTAYEV, Stanislav, HÄRKKI, Jouko
Format: Article
Language:English
Subjects:
Applied sciences
Coke
Crystallization
Crystals
Exact sciences and technology
Metallurgy
Metals. Metallurgy
Minerals
Production of metals
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Summary:A number of dodecahedral and octahedral spinel crystals were found in tuyere coke. The possibility of spinel formation from a gas phase in the tuyere coke can be considered for dodecahedral crystals. The octahedral spinels may have been formed by annealing of precursor mineral aggregates followed by crystallization of new phases. Investigations into spinel crystals can be important for further interpretations of the conditions of origin and subsequent behavior of mineral matter during coke degradation. [PUBLICATION ABSTRACT]
ISSN:1073-5615
1543-1916
DOI:10.1007/s11663-005-0032-1