Rehydration bondable alumina

C - Chemistry – Metallurgy – 01 – F

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C01F 7/02 (2006.01) B01J 21/04 (2006.01) B01J 35/08 (2006.01) C04B 35/10 (2006.01)

Patent

CA 1261590

Abstract of the Disclosure (1) Rehydration bondable alumina of median particle size less than about 5 microns, LOI (250 to 1100°C) about 4 to 12% by weight, and having the ability to yield rehydration bonded objects of lower density and higher strength as compared with objects made of seven micron rehydration bondable alumina, or density less than 0.9 g/cm3 at strength about equal to or greater than 7 MPa; (2) rehydration bondable alumina having the ability to yield rehydration bonded objects having at least 0.6 cc of pore volume per gram for pores smaller than 300 Angstroms. Also encompassed are materials containing such alumina and originating from e.g. bauxite.

464802

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