Homogeneous process for the hydrogenation of dicarboxylic acids and/or anhydrides thereof
Number of patents in Portfolio can not be more than 2000
United States of America Patent
Stats
-
Mar 3, 2009
Grant Date -
Jun 21, 2007
app pub date -
Oct 15, 2004
filing date -
Oct 31, 2003
priority date (Note) -
In Force
status (Latency Note)
Importance
Abstract
A homogeneous process for the hydrogenation of dicarboxylic acids and/or anhydrides in the presence of a catalyst comprising: (a) ruthenium, rhodium, iron, osmium or palladium; and (b) an organic phosphine; wherein the hydrogenation is carried out in the presence of at least about 1% by weight water and wherein the reaction is carried out at a pressure of from about 500 psig to about 2000 psig and a temperature of from about 200° C. to about 300° C. such that from about 1 mol to about 10 mol of hydrogen are used to strip 1 mole of product from the reactor.
First Claim
Family
International Classification(s)
- [Classification Symbol]
- [Patents Count]
Cited Art Landscape
Patent Citation Ranking
Recipient Email Address
Recipient Email Address
Comment
Recipient Email Address
Add to Portfolio(s)
To add this patent to one, or more, of your portfolios, simply click the add button.
This Patent is in these Portfolios:
Add to additional portfolios:
Last Refreshed On:
Changes done successfully