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US 12,533,663 B2Granted
Method for preparing zinc ferrite-based catalyst and zinc ferrite-based catalyst prepared thereby
AssigneeLG Chem, Ltd.
InventorsSang Jin Han, Dong Hyun Ko, Kyong Yong Cha, Ye Seul Hwang, Sunhwan Hwang
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Abstract
A method for preparing a zinc ferrite-based catalyst according to an embodiment of the present application comprises the steps of: contacting a metal precursor solution including a zinc precursor, a ferrite precursor, an acid solution and water with a basic aqueous solution to obtain a precipitate; and filtering and thereafter drying and calcining the precipitate, wherein the acid solution includes one or more of nitric acid (HNO3) and hydrocarbon acid.
Claims2
A zinc ferrite-based catalyst comprising Cl− ions,
- wherein a content of the Cl− ions is 950 ppm to 1,100 ppm based on a total weight of the zinc ferrite-based catalyst,
- wherein the zinc ferrite-based catalyst comprises a crystal structure of ZnFe2O4, and
- wherein an average size of the crystal structure of ZnFe2O4 is 84.5 nm to 120.8 nm.
Dependencies are inferred from the claim text.