采用常规碱抽提（E）、氧加强的碱抽提（E0）、H₂O₂强化的碱抽提（Ep）、氧和H₂O₂强化的碱抽提（EoP）对ClO₂脱木素（D0）麦草浆进行改性，考查不同碱抽提方式的改性效果在后续漂段（D1）的体现，并就不同无元素氯（ECF）漂白流程（D0ED1、D0P、D0A／QP、D0EP、D0E，D1、D0E，P）进行对比．结果表明：不同碱抽提方式对D0浆木素的改性效果不同，就对后续漂段D1的影响而言，4种不同碱抽提方式下纸浆的可漂性顺序为D0E0p〉D0Ep〉D0E0〉D0E；在4种碱抽提方式所对应的DOEDl漂白流程中，D1段ClO₂用量的增加对白度的提升是有限的，以0．8％-1．0％为佳；D0EpD1和D0EpP流程漂白效果优于其它流程，采用D0EpD1和D0EpP流程漂后白度可分别达到82．3％ISO和83．8％ISO，均适用于麦草浆短序ECF漂白．

Four kinds of alkaline extraction approaches, including the conventional, the oxygen-reinforced, the H₂O₂-reinforced and the oxygen-and-H₂O₂-reinforced ones （E, E0, Ep and E0p） , were used to modify ClO₂-delignified （D0） wheat straw pulp, and the modification effects of these four approaches on the subsequent bleaching stage （D1） were explored. In addition, various elemental chlorine-free （ECF） bleaching sequences, such as D0ED1, D0P, DoA/QP, D0EP, D0EpD1 and D0EpP, were comparatively investigated. The results indicate that （ 1 ） the modification effects of different alkaline extraction approaches on the residual lignin of Do stage are different from one other; （2） for the subsequent D1 stage, the bleachability of D1 pulp varies in an order of D0E0P 〉 D0Ep 〉 D0E0 〉 D0E; （3） in the D0ED1 bleaching sequences, the increase of ClO₂ dosage in D1 stage results in the brightness enhancement in a certain degree, especially at an optimized ClO₂ dosage of 0. 8% -1.0% ; （4） as compared with the other sequences, D0EpD1 and D0EpP sequences are both of better bleaching effect; and （5） with D0EpD1 and DoEpP bleaching sequences, the final brightness of bleached wheat straw pulp reaches 82.3% ISO and 83.8% ISO, respectively, which means that both D0EpD1 and DoEpP sequences are applicable to the ECF short-sequence bleaching of wheat straw pulp.