Process for manufacturing bleached pulp with reduced chloride production
Number of patents in Portfolio can not be more than 2000
United States of America Patent
Stats
-
Jul 8, 1997
Grant Date -
N/A
app pub date -
Jul 10, 1995
filing date -
Jul 10, 1995
priority date (Note) -
Expired
status (Latency Note)
Importance
Abstract
A process for bleaching wood pulp is provided comprising subjecting the wood pulp, after brown stock washing, to an oxygen delignification stage, a washing sequence, a first chlorine dioxide or ozone bleaching stage, an oxidative extraction stage, an ozone activation stage followed by a chlorine dioxide bleaching stage in the absence of an intermediate washing stage.
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