【摘要】 南方松硫酸盐浆（卡伯值为36）通过氧预漂后卡伯值为17.5,然后,在不同的用氯量下,进行氯化,这些纸浆再在E.（E）条件下,进行碱抽提,并测定纸浆与废水中的有机氯的含量,研究了经氧预漂后,氯在C段和E段纸浆与相应废水中的分布,及氧预漂对降低废水中TOCl的作用,发现经氧预漂后,氯化纸浆中的有机氯,只相当于无氧预漂的50％,说明氧预漂的纸浆中,有较少的位置可被氯取代,E₀段与氧预漂相结合,可大大降低漂白废水中TOCl的含量。更多还原

【Abstract】 Southern pine kraft pulp(Kappa No.36)was prebkachcd with oxygen to a Kappa number of 19.5 and the pulp was chlorinated at different level of chlorine dosages. Again these chlorinated pulps were extracted under E.(E) conditions and the organic chlorine contents in the pulps and in the spent liquors were determined. Chlorine distribution in the pulps and their corresponding effluents after C and E-Stages were investigated and the effect of oxygen prebleaching on the reduction of TOCl in bleaching effluents was studied. It was found that the organic chlorine in the chlorinated pulps after oxygen prebleaching is only about 50% organic chlorine in the non-oxygen prebleached pulps,suggcsting that the oxygen prcblcachcd pulps have less reaction site for substitution. The combination of oxygen prebleaching and Eo-stage substantially reduces TOCl content in bleaching effluents.更多还原