Diamine purification method
Number of patents in Portfolio can not be more than 2000
United States of America Patent
Stats
-
N/A
Issued Date -
Sep 28, 2006
app pub date -
Jun 25, 2004
filing date -
Jun 27, 2003
priority date (Note) -
Abandoned
status (Latency Note)
Importance
Abstract
Process for the purification of diamines The present invention relates to a process for the purification of diamines obtained by hydrogenation of dinitriles. It relates more particularly to the purification of hexamethylenediamine obtained from the hydrogenation of adiponitrile. The process of the invention consists in treating a portion of the hexamethylenediamine stream withdrawn from the distillation column and in reinjecting this treated stream into the said column.
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