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US 9,217,068 B2Granted
Alkaline earth metal aluminate spinels and methods for the preparation and use thereof
AssigneeSaudi Basic Industries Corporation
InventorsLawrence D'Souza, Vinu Viswanath, Sandro Gambarotta
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Abstract
High surface area alkaline earth aluminate spinel materials are disclosed, together with methods for the preparation thereof from one or more alkaline earth metal salts and a water soluble non-ionic polymer. A nanocrystalline alkaline earth metal aluminate spinel prepared according to the method is also provided.
Claims20
A method for the preparation of an alkaline earth aluminate spinel, the method comprising:
- a. contacting an alkaline earth metal salt or a solution thereof, aluminum nitrate or a solution thereof, and polyacrylamide or a solution thereof to form a first solution;
- b. adjusting the pH of the first solution to a value from about 9.5 to about 10.5 to form a precipitate;
- c. digesting the precipitate;
- and
- d. calcining the digested precipitate to obtain the alkaline earth aluminate spinel.
2 more elements
Dependencies are inferred from the claim text.