Production of alumina monohydrate from aluminum nitrate solutions
AssigneeThe United States of America as represented by the Secretary of the Interior
InventorsJudith A. Eisele, Barlane R. Eichbaum, Donald J. Bauer
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Abstract
Alumina monohydrate is produced by treating aluminum nitrate solution at a temperature of about 250.degree. to 350.degree. C and a pressure of about 500 to 2500 psig.
Claims3
A method for production of alumina monohydrate consisting of treating an aqueous solution of aluminum nitrate containing about 0.5 to 7.2 weight percent aluminum at a temperature of about 250.degree. to 350.degree. C and a pressure of about 500 to 2500 psig for a time sufficient to convert a major proportion of the nitrate to monohydrate, cooling the reaction mixture to room temperature and separating the precipitated alumina monohydrate.
Dependencies are inferred from the claim text.