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US 6,224,846 B1Granted
Method for making modified boehmite alumina
AssigneeCondea Vista Company
InventorsPaul K. Hurlburt, Daniel T. Plummer
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Abstract
A process for making a modified boehmite alumina comprising reacting at elevated temperatures a boehmite alumina with a compound having the formula: X(SO3M)n wherein X is an organic moiety, M in a monovalent cation, and n is an integer reflecting the number of SO3M groups bonded to said organic moiety to produce a reaction mixture containing modified boehmite alumina and recovering solid, modified boehmite alumina from the reaction mixture.
Claims8
A process for making a dispersible alumina comprising:
- reacting an aqueous slurry or aqueous dispersion or aqueous mixture of a boehmite alumina at a temperature of from 150 to 300° C. with a compound having the formula:
- X(SO3M)n
- wherein X is an organic moiety, M is a monovalent cation, and n is an integer reflecting the number of —SO3M groups bonded to said organic moiety, to produce a reaction mixture containing modified boehmite alumina;
- and
- recovering from said reaction mixture a solid, modified boehmite alumina that can be dispersed in water and polar organic liquids.
2 more elements
Dependencies are inferred from the claim text.