Method of pretreating lignocellulose fiber-containing material in a pulp refining process
Number of patents in Portfolio can not be more than 2000
United States of America Patent
Stats
-
May 31, 2005
Grant Date -
Dec 13, 2001
app pub date -
Aug 8, 1997
filing date -
Aug 8, 1997
priority date (Note) -
In Force
status (Latency Note)
Importance
Abstract
A method and apparatus for pretreating or conditioning lignocellulose fiber containing feed material in preparation for conversion to pulp. Wood chips are pretreated under conditions of elevated temperature, pressure and humidity and subsequently compressed to cause destructuring of the fibers of the feed material. The pretreated wood chips are then converted to pulp using such methods as the ground wood pulping process or chemical digestion process.
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