Catalyst – solid sorbent – or support therefor: product or process – Catalyst or precursor therefor – Nitrogen compound containing
Reexamination Certificate
2007-05-08
2007-05-08
Lorengo, Jerry A. (Department: 1755)
Catalyst, solid sorbent, or support therefor: product or process
Catalyst or precursor therefor
Nitrogen compound containing
C502S102000, C502S324000, C502S330000, C502S506000, C502S512000, C524S113000, C549S313000, C549S325000, C549S326000, C549S508000
Reexamination Certificate
active
10534621
ABSTRACT:
The present invention provides a process for hydrogenating carbonyl compounds, in particular C4-dicarboxylic acids to mixtures of tetrahydrofuran and gamma-butyrolactone, over supported rhenium catalysts, wherein rhenium and at least one further metal of groups VIII or Ib of the Periodic Table of the Elements, in particular ruthenium (Ru), rhodium (Rh), palladium (Pd), osmium (Os), iridium (Ir), platinum (Pt), copper (Cu), silver (Ag) or cobalt (Co), is applied to the support in the form of at least one bimetallic precursor compound, and also to these catalysts.
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Constantinescu Take
Fischer Rolf-Hartmuth
Hesse Michael
Schubert Markus
BASF - Aktiengesellschaft
Hailey Patricia L.
Lorengo Jerry A.
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