Process for the production of boehmite

Details Process for the production of boehmite Process for the production of boehmite

1987-02-10

1991-11-05

Dean, R.

Chemistry of inorganic compounds

Treating mixture to obtain metal containing compound

Group iiia metal or beryllium

423122, 423131, 423625, 423628, C01F 702, C01F 722

Patent

active

050630334

ABSTRACT:
The present invention provides a process for the production of crystalline boehmite of fine particle size and enhanced specific surface area. Coarse gibbsite particles, obtained from the Bayer Process, are lightly calcined and the non-boehmite-containing material is removed by dissolution in caustic aluminate liquors of appropriate composition.

REFERENCES:
patent: 3954957 (1976-05-01), Koenig
patent: 4066740 (1978-01-01), Erickson
patent: 4102978 (1978-07-01), Kiovsky
patent: 4117105 (1978-09-01), Hertzenberg et al.
patent: 4279779 (1981-07-01), Sanchez et al.
patent: 4595581 (1986-06-01), Misra et al.
patent: 4629618 (1986-12-01), Oguri et al.
"The Thermal Decomposition of the Alumina Trihydrate, Gibbsite", by J. F. Brown et al., 1953.
"Thermal Transformations of Aluminas and Alumina Hydrates", by H. C. Stumpf, 1950.

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