Process for the production of a hemicellulose hydrolysate and special high alpha cellulose pulp
Number of patents in Portfolio can not be more than 2000
United States of America Patent
Stats
-
Aug 18, 1992
Issued Date -
N/A
app pub date -
Jun 8, 1990
filing date -
Apr 21, 1987
priority date (Note) -
Expired
status (Latency Note)
Importance
Abstract
A process for the production of a hemicellulose hydrolysate and special pulp through two steps, the first step comprising the prehydrolysis of the material and the second step the dissolving of the lignin contained in the prehydrolyzed material. According to the process the lignin dissolving is carried out by neutral sulphite cooking with anthraquinone or a derivative thereof as a catalyst, the pH of the cooking liquor being initially at least 10.
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