Process for the preparation of high-purity zirconium, hafnium, tantalum and niobium alkoxides
Number of patents in Portfolio can not be more than 2000
United States of America Patent
Stats
-
Sep 25, 2007
Issued Date -
N/A
app pub date -
Aug 24, 2006
filing date -
Aug 27, 2005
priority date (Note) -
In Force
status (Latency Note)
Importance
Abstract
A novel process for the preparation of high-purity zirconium, hafnium, tantalum and niobium alkoxides (alcoholates), novel tantalum and niobium compounds and a process for their preparation are provided. The process comprises the steps of mixing crude metal alkoxides M(OR).sub.x having a halogen impurity of at least 0.05 wt. %, with an alcohol ROH, in which R is a C.sub.1-C.sub.12-alkyl radical, and subsequently or simultaneously metering in an excess of ammonia, based on the amount of mononuclear or polynuclear halogen-containing metal alkoxides.
First Claim
Family
International Classification(s)
Cited Art Landscape
Patent Citation Ranking
Advertisement
Advertisement
Advertisement
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