Catalyst – solid sorbent – or support therefor: product or process – Zeolite or clay – including gallium analogs – And additional al or si containing component
Reexamination Certificate
2004-12-06
2009-08-18
Wood, Elizabeth D (Department: 1793)
Catalyst, solid sorbent, or support therefor: product or process
Zeolite or clay, including gallium analogs
And additional al or si containing component
C502S073000, C502S080000, C502S084000
Reexamination Certificate
active
07576024
ABSTRACT:
The invention relates to a composition comprising anionic clay and rare earth metal hydroxy carbonate. This composition can suitably be used in FCC for the reduction of NOx and/or SOx emissions, the reduction of the S and/or N-content in fuels, and as a metal trap.The composition can be prepared by precipitating a divalent metal salt, a trivalent metal salt, and a rare earth metal salt to form a precipitate, calcining the precipitate at 200-800° C., and rehydrating the precipitate in the presence of a carbonate source to form a composition comprising anionic clay and a rare earth metal hydroxy carbonate.
REFERENCES:
patent: 2002/0092812 (2002-07-01), Stamires et al.
patent: 2002/0110520 (2002-08-01), Stamires et al.
patent: 2002/0111263 (2002-08-01), Stamires et al.
patent: 0 278 535 (1988-08-01), None
Brady Michael F.
Jones William
O'Connor Paul
Stamires Dennis
Albemarle Netherlands B.V.
Kliebert Jeremy J.
Wood Elizabeth D
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