Method of manufacturing aluminum-substituted hematite

Details Method of manufacturing aluminum-substituted hematite Method of manufacturing aluminum-substituted hematite

C - Chemistry, Metallurgy

01

G

C01G 49/06 (2006.01) C01F 7/02 (2006.01) C01G 49/00 (2006.01) C09C 1/24 (2006.01)

Patent

CA 2434278

A method of manufacturing aluminum-substituted hematite represented by .alpha.-(Fe1-x Al x)2O3 where x=0.01 to 0.15, by mixing an iron compound and an aluminum compound such that an atomic ratio of Fe to Al falls within the range of 99:1 to 85:15, adding citric acid and ethylene glycol to the mixture of the iron compound and aluminum compound to produce a gel, and pyrolyzing the gel, followed by calcining the pyrolyzed product.

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