Phosphorus/vanadium catalyst preparation
Number of patents in Portfolio can not be more than 2000
United States of America Patent
Stats
-
Feb 22, 2005
Grant Date -
Nov 18, 2004
app pub date -
May 15, 2003
filing date -
May 15, 2003
priority date (Note) -
In Force
status (Latency Note)
Importance
Abstract
A process for preparing a catalyst for maleic anhydride production wherein a +5 vanadium compound such as V.sub.2 O.sub.5, an anhydrous phosphoric acid, and optionally promoters are admixed in an organic alcohol solvent, the admixture is rapidly brought to reflux and thereafter refluxed to reduced the vanadium compound to the desired degree, the reflux mixture is cooled, precursor crystals are separated by filtration and then dried and calcined.
First Claim
Family
International Classification(s)
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