Ceramic bodies produced from boehmite gels by a hydrothermal...

Details Ceramic bodies produced from boehmite gels by a hydrothermal... Ceramic bodies produced from boehmite gels by a hydrothermal...

C - Chemistry, Metallurgy

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C01F 7/02 (2006.01) B01J 21/04 (2006.01) B24D 3/00 (2006.01) B24D 3/14 (2006.01) C01F 7/44 (2006.01) C04B 35/111 (2006.01)

Patent

CA 1302681

ABSTRACT Microcrystalline boehmite suitable for conversion to anhydrous alumina products is produced by hydrothermal treatment of precursor alumina raw material at controlled pH and in the presence of microcrystalline boehmite seed material. Reaction mix may include submicron seed material for seeding for later conversion of the microcrystalline boehmite to alpha alumina. Removal of metal cations by ion exchange is employed when high purity product is required. Other materials may be added to reaction mix. Production of alumina products, catalysts, and ceramic bodies is disclosed.

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