Phenolic agent in alkaline lignin separated fromthe the black liquid can result in a chain etherized reaction on cycloalkanes by alkaline distilling so as to make lignin change its property.

• 从蒸煮黑液中分离的碱木素苯环上的酚羟基可与环氧烷基胺发生醚化接枝反应，从而使木素胺化改性。