US 2006/0052239 A1 · Supported catalyst containing rhenium and method for hydrogenation of hydrogenation of carbonyl compounds in liquid phase by means of said catalyst

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.

Claims14

Dependent claims

A supported rhenium catalyst, comprising rhenium and at least one further metal of groups VIII or Ib of the Periodic Table of the Elements, in the form of at least one perrhenate double salt of the general formula (I):

[Mea(NH3)b(OH)c](ReO4)d.eH2O (I)
wherein:
Me is a metal of groups VIII and Ib of the Periodic Table of the Elements;
a is 1 or 2;
b is an integer from 1 to 8;
c is an integer from 0 to 5;
d is 2, 3 or 4;
and e is an integer from 0 to 12;
which is applied to the support as a bimetallic precursor compound.

6 more elements

Dependencies are inferred from the claim text.

Facts

Application

10/534,621Filed 6 Nov 2003

Priority

DE 102 52 281.211 Nov 2002

Published

9 Mar 2006

Term ends

Not estimatedThe source records don’t support an estimate.

Classification17 codes

C07D 307/33
Oxygen atoms: in position 2, the oxygen atom being in its keto or unsubstituted enol form
B01J 23/6567
Manganese, technetium or rhenium: rhenium
B01J 23/688
With arsenic, antimony, bismuth, vanadium, niobium, tantalum, polonium, chromium, molybdenum, tungsten, manganese, technetium or rhenium: with…
B01J 23/8896
Manganese, technetium or rhenium: rhenium

Supported catalyst containing rhenium and method for hydrogenation of hydrogenation of carbonyl compounds in liquid phase by means of said catalyst

Life of this patent

Supported catalyst containing rhenium and method for hydrogenation of hydrogenation of carbonyl compounds in liquid phase by means of said catalyst

Life of this patent

Abstract

Claims14