摘要 |
<p>Method for recovering lignin from lignocellulosic material by digestion with alcohol, more particularly with a C1-4 alcohol, water and a base, more particularly NaOH, at a temperature of below 100°C, more particularly from 40°C to 90°C, more particularly from 50°C to 70°C, characterized in that 3 to 12 parts of base, more particularly 4 to 10 parts of base, with more particular preference 5 to 8 parts of base, are used per 100 parts of the dry lignocellulosic material to be digested.</p> |