Process for preparing dispersible boehmite alumina

Details Process for preparing dispersible boehmite alumina Process for preparing dispersible boehmite alumina

1977-03-21

1978-09-26

Carter, Herbert T.

Chemistry of inorganic compounds

Oxygen or compound thereof

Metal containing

423628, 252313R, C01F 702, C01F 744

Patent

active

041171055

ABSTRACT:
A process for the preparation of finely divided dispersible alpha-alumina monohydrate (boehmite) from alumina trihydrate is disclosed. The alumina trihydrate is calcined thereby increasing the surface area through a partial dehydration. The calcined intermediate is slurried in water and autoclaved to achieve crystallization and rehydration. Conventional drying methods are used to obtain the particles. The particle size of the product is much smaller than that of the starting raw material.

REFERENCES:
patent: 3222129 (1965-12-01), Osment et al.
patent: 3223483 (1965-12-01), Osment
patent: 3226191 (1965-12-01), Osment et al.
patent: 3608060 (1971-09-01), Osment et al.

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