C - Chemistry – Metallurgy – 01 – F
Patent
C - Chemistry, Metallurgy
01
F
23/240
C01F 7/30 (2006.01) C01F 7/02 (2006.01) C04B 35/113 (2006.01)
Patent
CA 1267769
ABSTRACT A method of making beta"-alumina is disclosed. The method comprises dispersing in a precursor of aluminium oxide a member of the group comprising sodium oxide and its precursors, and dispersing in the precursor of aluminium oxide a spinel stabilizer which is a member of the group comprising spinel-forming oxides and the precursors thereof, to form a mixture. The mixture is then heated to a temperature at which at least some of the precursor of aluminium oxide is converted to beta"-alumina. The precursor of aluminium oxide is one which, when calcined in air by itself, has a calcination product which, when subjected to X-ray diffraction, displays a predetermined X-ray diffraction trace.
509882
Barrow Peter
Duncan James Hugh
Kingon Angus Ian
Van Zyl Arnold
Lilliwyte Societe Anonyme
Sim & Mcburney
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