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US 10,651,479 B2Granted
Method of recovering metal compounds from solid oxide fuel cell scrap
AssigneeBloom Energy Corporation
InventorsLunzhi Liao, Christopher Jeffrey Hartley, Andrew Sarmiento
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Abstract
A method of recovering metal compounds from solid oxide fuel cell scrap includes processing the solid oxide fuel cell scrap to form a powder, digesting the processed scrap, extracting lanthanum oxide and cerium oxide from a solution containing the digested processed scrap, extracting a zirconium compound from the solution after extracting the lanthanum oxide and cerium oxide, and extracting scandium compound from the solution extracting the zirconium compound from the solution.
Claims17
A method of recovering metal compounds from solid oxide fuel cell scrap, the method comprising:
- processing the solid oxide fuel cell scrap to form a powder of processed scrap;
- digesting the processed scrap;
- extracting lanthanum oxide and cerium oxide from a solution containing the digested processed scrap;
- extracting a zirconium compound from the solution after extracting the lanthanum oxide and cerium oxide;
- and
- extracting a scandium compound from the solution after extracting the zirconium compound from the solution.
3 more elements
Dependencies are inferred from the claim text.