Process for preparing aluminum titanate powder and process...

C - Chemistry – Metallurgy – 04 – B

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C04B 35/478 (2006.01) C01G 23/00 (2006.01)

Patent

CA 2279809

This invention provides a process for preparing a powder of aluminum titanate, comprising the steps of subjecting to pressure molding a mixture of 100 parts by weight of a mixture of Al2O3 and TiO2 at a molar ratio of the former : the latter of 1 : 0.95-1.05, 2 to 5 parts by weight of SiO2, 2 to 5 parts by weight of iron oxide calculated as Fe2O3 and 1 to 3 parts by weight of a powder of an organic substance; sintering the molded product at a temperature of 1600 to 1700°C in a closed container; and pulverizing the molded product, and also provides a process for preparing a sintered body of aluminum titanate, comprising the steps of molding the powder of aluminum titanate obtained by the above-mentioned process and sintering the molded product at 1450 to 1550°C.

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