A method and an apparatus for forming a fraction of lignin, lignin Composition and its use

摘要

The Invention relates to a method and an apparatus for forming a lignin fraction from Crude lignin has been processed through the use of a Processing step to select between Enzymatic treatment, Treatment with an Ionic liquid and their combinations.The Method comprises treating the raw lignin (1) through the release of lignin in at least one step release of lignin (3), and Separating a fraction of lignin (6) in at least one step separation (5).