Chemistry of inorganic compounds – Oxygen or compound thereof – Metal containing
Patent
1987-09-22
1990-05-15
Stoll, Robert L.
Chemistry of inorganic compounds
Oxygen or compound thereof
Metal containing
423593, 501 12, C01B 1314
Patent
active
049256475
ABSTRACT:
A process for the production of a metal oxide or metal mixed oxide is described, in which an aqueous solution of at least one water-soluble salt-like compound of a polyvalent metal is finely divided in an inert gas atmosphere. The droplets which are obtained are brought into contact with a gas containing ammonia, until such time as the hydroxide (the hydroxides) of the polyvalent metal (metals) is (are) at least partially precipitated, and the small gel spherules, which contain metal hydroxide and water, are collected. In this process, the aqueous solution which is employed is finely divided by ultrasonic waves. An intergas laminar flow which is oriented parallel to the outlet direction of the solution, is generated radially symmetrically about the outlet aperture for the solution, and the solidified get spherules are dried and converted, by heating, into the metal oxide or metal mixed oxide.
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Harvey Paige C.
Hoechst Aktiengesellschaft
Stoll Robert L.
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