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US 5,814,291 AGranted
Simplified synthesis of anion intercalated hydrotalcites
AssigneeAristech Chemical Corporation
InventorChandrashekhar P. Kelkar
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Abstract
The present invention is one-step method for synthesizing a synthetic anion intercalated hydrotalcite material. The method comprises reacting an aluminum source with a magnesium source in the presence of an inorganic acid of the anion to be intercalated, and in the absence of a Group IA metal source. The resulting slurry can be dried to form the final product.
Claims10
A method of making synthetic hydrotalcite-like material having at least one inorganic anion intercalated therein comprising the steps of:
- (a) contacting an aluminum source with a magnesium source and at least one source of said inorganic anion, and in the absence of a Group IA metal source, at a temperature of at least about 40.degree. C. to form a slurry, wherein said at least one source of said inorganic anion is an inorganic acid;
- and
- (b) drying said slurry.
Dependencies are inferred from the claim text.