Mixed bed ion exchange resins
Number of patents in Portfolio can not be more than 2000
United States of America Patent
Stats
-
Apr 21, 2009
Grant Date -
Feb 26, 2004
app pub date -
Aug 21, 2002
filing date -
Sep 7, 2001
priority date (Note) -
In Force
status (Latency Note)
Importance
Abstract
The present invention relates to a non-agglomerating, readily separable mixed bed ion exchange system comprising: (a) a strong base quaternary ammonium anion exchange resin wherein said anion exchange resin has been pretreated with 10 to 800 milligrams of water-soluble sulfonated poly(vinylaromatic)polyelectrolyte per liter of anion exchange resin; wherein the number average molecular weight of the sulfonated poly(vinylaromatic)polyelectrolyte is from 5,000 to 1,000,000; and (b) a strong acid sulfonated cation exchange resin wherein said cation exchange resin has been pretreated with 10 to 800 milligrams of a water soluble cationic polyelectrolyte selected from the group of polymers consisting of poly(vinylaromatic)quaternary amine salts, poly(vinylaromatic)tertiary amine acid salts, or poly(vinylpyridines) acid salts, wherein the number average molecular weight of said polymers is from 5,000 to 1,000,000.
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