Treatment of phenol
Number of patents in Portfolio can not be more than 2000
United States of America Patent
Stats
-
Mar 5, 2013
Grant Date -
Nov 4, 2010
app pub date -
Dec 22, 2008
filing date -
Dec 20, 2007
priority date (Note) -
In Force
status (Latency Note)
Importance
Abstract
A process for the removal of by-products from a phenolic mixture, which process may include the following steps: subjecting a phenolic mixture to extractive distillation to produce an initial phenolic mixture, contacting the initial phenolic mixture containing phenol and one or more by products with a catalyst to produce a first purified phenol product mixture, and distilling the first purified phenol product mixture to produce a second purified phenol product mixture; wherein the extractive distillation is carried out in two columns, a higher pressure column and a lower pressure 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