PROCESSES FOR THE PRODUCTION OF PYRROLIDONES
Number of patents in Portfolio can not be more than 2000
United States of America Patent
Stats
-
N/A
Issued Date -
Jul 11, 2013
app pub date -
May 17, 2011
filing date -
May 19, 2010
priority date (Note) -
Abandoned
status (Latency Note)
Importance
Abstract
Processes for making pyrrolidones include providing a clarified diammonium succinate (DAS)-containing and/or monoammonium succinate (MAS)-containing fermentation broth; distilling the broth under super atmospheric pressure at a temperature of greater than 100° C. to about 300° C. to form an overhead that includes water and ammonia, and a liquid bottoms that includes SA, and at least about 20 wt % water; cooling and/or evaporating the bottoms to attain a temperature and composition sufficient to cause the bottoms to separate into a liquid portion and a solid portion that is substantially pure SA; separating the solid portion from the liquid portion; and converting the solid SA portion to pyrrolidones.
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