Catalyst – solid sorbent – or support therefor: product or process – Catalyst or precursor therefor – Silicon containing or process of making
Reexamination Certificate
2006-02-21
2006-02-21
Bos, Steven (Department: 1754)
Catalyst, solid sorbent, or support therefor: product or process
Catalyst or precursor therefor
Silicon containing or process of making
C502S263000, C502S302000, C502S303000, C502S304000, C502S325000, C502S333000, C502S334000, C502S340000, C502S341000, C502S349000, C502S355000
Reexamination Certificate
active
07001866
ABSTRACT:
A porous catalyst support having an increased average pore size is produced from a mixed metal oxide material. In accordance with one embodiment, a method for preparing a mixed metal oxide material includes providing a mixed metal oxide precursor containing at least two metals, calcining the mixed metal oxide precursor at a temperature sufficient to form a thermally and mechanically stable mixed metal oxide material, and leaching the mixed metal oxide material in a leach solution with a constituent that dissolves one metal oxide. Preferably, the calcination temperature is approximately between 300° C. and 1300° C. The leaching constituent may be chosen from the group including acidic solutions of HCl, HNO3, H2SO4, H3PO3, and their combinations, or basic solutions of NH3, NaOH, KOH, and their combinations.
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European Search Report for Application No. EP 03 25 6823 dated Mar. 16, 2004 (2 p.).
Wang Daxiang
Xie Shuibo
Bos Steven
Conley & Rose, P.C.
ConocoPhillips Company
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