冷碱预浸麦草化机浆漂白工艺的探讨

Research on the Bleach Technology of Cold Soda Preimpregnated Straw Chemical Mechanical Pulping

研究在不升温蒸煮的条件下,用冷碱蒸煮液(80℃)预浸麦草及机械磨浆方法制备高得率纸浆,并在此基础上对冷碱预浸麦草化机浆进行EOPDP漂白,得出最佳EOPDP漂白工艺条件。在最佳条件下冷碱预浸渍麦草浆白度可达73%,纸浆得率为47%。

This paper studied that when cooking without heating, by using cold cooking liquor（80℃）to preimpregnate wheat straw and mechanical pulping, it can got high-yield pulp. On this basis, bleached the soda preimpregnated straw pulp, we used the EOPDP bleaching method, and studied the bleaching process condition, then compared with CEH three-stage bleaching processes, the result showed that the optimum conditions bleaching EopDP was got, under the best conditions in the cold preimpregnated, wheat straw alkali brightness was up to 73% and final pulp yield was 47%.