Method for extracting lignin
Number of patents in Portfolio can not be more than 2000
United States of America
Stats
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Sep 10, 2019
Grant Date -
Nov 10, 2016
app pub date -
Jan 9, 2015
filing date -
Jan 9, 2015
priority date (Note) -
In Force
status (Latency Note)
Importance
Abstract
The invention relates to a method for removing lignin from lignocellulosic biomass. The method comprises feeding of lignocellulosic biomass and a first aqueous solution into a reactor vessel, the lignocellulosic biomass and the first aqueous solution forming a reaction mixture; reducing the pressure in the reactor vessel below 0.8 bar absolute pressure, preferably 0.5 bar absolute pressure, more preferably below 0.2 bar absolute pressure; keeping the reaction mixture in a predetermined extraction temperature, and adding at least one extraction chemical, such as base or acid, to the reaction vessel and extracting lignin from the biomass to the liquid phase of the reaction mixture.
First Claim
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International Classification(s)
- 2015 Application Filing Year
- C07G Class
- 32 Applications Filed
- 24 Patents Issued To-Date
- 75 % Issued To-Date
Cited Art Landscape
Patent Citation Ranking
- 0 Citation Count
- C07G Class
- 0 % this patent is cited more than
- 6 Age
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