Electrochemical production of dyes using graphite felt electrodes
Number of patents in Portfolio can not be more than 2000
United States of America Patent
Stats
-
Jan 10, 2006
Grant Date -
Aug 26, 2004
app pub date -
Feb 25, 2003
filing date -
Feb 25, 2003
priority date (Note) -
In Force
status (Latency Note)
Importance
Abstract
An electrochemical process for the preparation of water-soluble colorants, particularly triphenylmethane colorants and other water soluble technical dyes, is disclosed. In this process, the anode in the electrochemical cell comprises an open pore carbon material having specific void volume and surface area characteristics. A preferred electrode material is a carbon felt pad, preferably between about 1/16 inch and ¼ inch in thickness. This process provides faster reaction rates than electrochemical processes using standard electrodes, as well as higher yields compared to processes using chemical oxidizing agents.
First Claim
Family
International Classification(s)
- [Classification Symbol]
- [Patents Count]
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