High surface area alumina and method for the preparation thereof

Details High surface area alumina and method for the preparation thereof High surface area alumina and method for the preparation thereof

1975-01-15

1977-04-19

Dees, Carl F.

Chemistry of inorganic compounds

Oxygen or compound thereof

Metal containing

252463, C01F 702, B01J 2308

Patent

active

040188817

ABSTRACT:
A high surface area alumina is provided exhibiting a surface area ranging from about 350 to about 550 meters.sup.2 /gram.
The high surface area alumina is prepared by reacting substantially anhydrous aluminum chloride with ammonia at temperatures ranging from about 100.degree. to about 900.degree. F. to form an aluminum chloride-ammonia complex comprising aluminum chloride polyammoniates, and hydrolyzing said polyammoniates to obtain high surface area alumina.

REFERENCES:
patent: 2737444 (1956-03-01), Fisher et al.
patent: 2888323 (1959-05-01), Teichner
patent: 2914488 (1959-11-01), Gilbert
patent: 3188174 (1965-06-01), Kehl et al.

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