What is claimed is:
1. A method for forming a lignin fraction from crude lignin which has been processed using enzymatic treatment, treatment with ionic liquid, or the combination thereof, wherein the method comprises:
treating the crude lignin by a lignin liberation in at least one lignin liberation step; andseparating a lignin fraction in at...
FIELD OF THE INVENTION
The invention relates to a method and an apparatus for forming a lignin fraction. Further, the invention relates to a lignin composition and its use.