The invention relates to a method and an apparatus for forming a lignin fraction from crude lignin which has been processed by means of a treatment step selected from enzymatic treatment, treatment with ionic liquid and their combinations. The method comprises treating the crude lignin (1) by a lignin liberation in at least one lignin liberation step (3), and separating a lignin fraction (6) in at least one separation step (5). Further, the invention relates to a lignin composition and its use.
本发明涉及一种从粗
木质素中提取
木质素馏分的方法和设备,粗
木质素是通过从酶处理、
离子液体处理及其组合中选择的处理步骤进行处理的。该方法包括在至少一个
木质素释放步骤 (3) 中通过
木质素释放处理粗
木质素 (1),并在至少一个分离步骤 (5) 中分离出
木质素馏分 (6)。此外,本发明还涉及一种
木质素组合物及其用途。