申请人:C.I.L. Inc.
公开号:EP0010451A1
公开(公告)日:1980-04-30
There is disclosed a process for the delignification of lignocellulosic material by treatment with an alkaline liquor in the presence of a cyclic keto compound such as anthraquinone. The lignocellulosic material in subdivided form is first impregnated with the alkaline liquor containing a suitable amount of the cyclic keto compound whereafter any excess liquor is drained. The impregnated material is then cooked by heating. The delignified products are suitable for the manufacture of paper.
本发明公开了一种木质纤维素材料的脱木素工艺,即在蒽醌等环酮化合物存在的情况下,用碱性液处理木质纤维素材料。首先用含有适量环酮化合物的碱性液体浸渍细分的木质纤维素材料,然后排出多余的液体。然后将浸渍过的材料加热蒸煮。脱木素产品适用于造纸。