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Method for producing iron-based catalysts

United States Patent

5,948,722
September 7, 1999
View the Complete Patent at the US Patent & Trademark Office
U.S. Department of Energy - Visit the Office of the Assistant General Counsel for Technology Transfer & Intellectual Property Website
A method for preparing an acid catalyst having a long shelf-life is provided comprising doping crystalline iron oxides with lattice-compatible metals and heating the now-doped oxide with halogen compounds at elevated temperatures. The invention also provides for a catalyst comprising an iron oxide particle having a predetermined lattice structure, one or more metal dopants for said iron oxide, said dopants having an ionic radius compatible with said lattice structure; and a halogen bound with the iron and the metal dopants on the surface of the particle.
Farcasiu; Malvina (Pittsburgh, PA), Kaufman; Phillip B. (Library, PA), Diehl; J. Rodney (Pittsburgh, PA), Kathrein; Hendrik (McMurray, PA)
The United States of America as represented by the United States (Washington, DC)
08/ 949,405
October 14, 1997
CONTRACTUAL ORIGIN OF THE INVENTION The U.S. Government has rights in this invention pursuant to the employer-employee relationship of the Government to some of the inventors as U.S. Department of Energy employees at the Pittsburgh Energy Technology Center, and pursuant to 42 U.S.C. 5908 in respect to the inventor-employees of the Bayer Corporation.