Patent ID: 11865522
Assignee: LG CHEM, LTD.
Field: Chemical engineering (Chemistry)
Classification: CPC B  C | IPC B  C

Claim 0:
1. A method for preparing a zinc ferrite-based catalyst, the method comprising:
obtaining a precipitate by bringing a metal precursor solution comprising a zinc precursor, a ferrite precursor, a solution containing an acid in an amount from 1 wt % to 30 wt % based on a combined weight of the zinc precursor and the ferrite precursor, and water into contact with a basic aqueous solution;
filtering the precipitate;
drying the filtered precipitate; and
firing the dried precipitate,
wherein the solution containing the acid comprises one or more of nitric acid and hydrocarbon acid,
wherein the zinc ferrite-based catalyst comprises Cl− ions, and a content of the Cl− ions is 1,100 ppm or less based on a total weight of the zinc ferrite-based catalyst.