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US 4,267,161 AGranted
Method of making aluminum chlorohydrate
AssigneeConoco Inc.
InventorWilliam C. Ziegenhain
Life of this patent
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Abstract
Aluminum chlorohydrate is prepared by a method comprising (a) forming aluminum methoxide from aluminum alkoxides using methanol; (b) recovering aluminum methoxide as a solid precipitate phase, washing to remove higher alcohols and drying to recover a powder; (c) reacting the recovered powdered aluminum methoxide with dilute hydrochloric acid to form aluminum chlorohydrate.
Claims8
A method for preparing aluminum chlorohydrate comprising
- (a) reacting aluminum alkoxides with methanol at a temperature of from about 130.degree. F. to about 450.degree. C. for a time sufficient to form solid aluminum methoxide in a liquid phase,
- (b) washing the aluminum methoxide recovered with methanol to remove higher alcohols, then recovering solid aluminum methoxides from the liquid phase, and
- (c) reacting aluminum methoxide with aqueous hydrochloric acid for a time and at a temperature sufficient to form aluminum chlorohydrate.
Dependencies are inferred from the claim text.