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US 10,766,018 B2Granted
Composites of aluminum oxide and cerium/zirconium mixed oxides
AssigneeSasol Germany GmbH
InventorsMarcos Schoneborn, Reiner Glockler, Anja Paeger
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Abstract
The subject matter of the invention is a method for producing composites comprising aluminum oxide and cerium/zirconium mixed oxides, hereinafter referred to briefly as Al/Ce/Zr oxide composite(s) using boehmite and soluble cerium/zirconium salts. Al/Ce/Zr oxide composites produced in this way have an increased thermal stability.
Claims16
An Al/Ce/Zr oxide composite comprising aluminum oxide and cerium/zirconium mixed oxides in the form of a “solid solution”, wherein Al2O3 and the Ce/Zr and optionally rare earth (RE) mixed oxides are homogeneously distributed side by side comprising
- 20% to 80% by weight aluminum, calculated as Al2O3;
- 5% to 80% by weight zirconium, calculated as ZrO2;
- 5% to 80% by weight cerium, calculated as CeO2;
- and
- 0% to 12% by weight, rare earth metal(s) (RE) calculated as RE2O3.
2 more elements
Dependencies are inferred from the claim text.