Catalyst – solid sorbent – or support therefor: product or process – Catalyst or precursor therefor – Organic compound containing
Reexamination Certificate
2006-11-14
2006-11-14
Lorengo, J. A. (Department: 1755)
Catalyst, solid sorbent, or support therefor: product or process
Catalyst or precursor therefor
Organic compound containing
C502S170000, C556S014000, C556S179000
Reexamination Certificate
active
07135427
ABSTRACT:
A carboxy-modified aluminum-based catalyst composition is of the general formula P(O)(OAlR′R″)3or RP(O)(OAlR′R″)2wherein O represents oxygen, P represents pentavalent phosphorous, Al represents aluminum, R comprises hydrogen, an alkyl group, or an aryl group, and R′ and R″ independently comprise a halide, an alkyl group, a haloalkyl group, an alkoxy group, an aryl group, an aryloxy group, or a carboxy group, so long as at least one of R′ and R″ is a carboxy group. The carboxy-modified aluminum-based catalyst composition is, generally, the reaction product of phosphoric acid or a pentavalent phosphonic acid, a tri-substituted aluminum compound, and a carboxylic acid.
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BASF Corporation
Borrego Fernando A.
Lorengo J. A.
Pasterczyk J.
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