Organic compounds -- part of the class 532-570 series – Organic compounds – Carboxylic acids and salts thereof
Reexamination Certificate
2007-04-03
2011-12-13
Zucker, Paul A (Department: 1621)
Organic compounds -- part of the class 532-570 series
Organic compounds
Carboxylic acids and salts thereof
C562S518000, C562S519000
Reexamination Certificate
active
08076506
ABSTRACT:
A process for reducing the aldehyde concentration in a target stream of a carbonylation process is disclosed. More specifically, a process for reducing the aldehyde concentration in an internal process stream or feed stream of a carbonylation process is disclosed. In particular, a process in which a target stream comprising a carbonylatable reactant and a first aldehyde concentration is subjected to a reaction comprising a supported catalyst that comprises at least one Group 8 to Group 11 metal at conditions sufficient to reduce the first aldehyde concentration to a second aldehyde concentration is disclosed.
REFERENCES:
patent: 5155266 (1992-10-01), Scates et al.
patent: 2002/0151746 (2002-10-01), Scates et al.
Kimmich Barbara F. M.
Patt Jeremy J.
Scates Mark O.
Shaver Ronald D.
Zink James H.
Celanese International Corporation
Zucker Paul A
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