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Synthesis of (Mg,Si)Al 2 O 4 Spinel from Aluminum Dross
Author(s) -
Hashishin Takeshi,
Kodera Yasuhiro,
Yamamoto Takeshi,
Ohyanagi Manshi,
Munir Zuhair A.
Publication year - 2004
Publication title -
journal of the american ceramic society
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.9
H-Index - 196
eISSN - 1551-2916
pISSN - 0002-7820
DOI - 10.1111/j.1551-2916.2004.00496.x
Subject(s) - spinel , dross , aluminium , materials science , diffraction , x ray crystallography , aluminium oxides , metallurgy , analytical chemistry (journal) , mineralogy , chemistry , catalysis , physics , optics , biochemistry , chromatography
The spinel (Mg,Si)Al 2 O 4 was synthesized from aluminum dross using an induction synthesis method. X‐ray diffraction analyses on products formed at different temperatures provided an understanding of the formation mechanism of the spinel. After removal of soluble components, the induction heating of the dross resulted first in the oxidation of some of the AlN component and the subsequent formation of the spinel by the following reaction: x SiO 2 + (1− x )MgO + [1−( x /3)]Al 2 O 3 + (2 x /3)AlN = (Mg 1− x ,Si x )Al 2 O 4 + ( x /3)N 2 ( g ).