Prehydrolysis prior to pulping shows a beneficial effect in subsequent delignification and bleaching. Prehydrolysis of Acacia auriculiformis produced higher pulp yield in soda and soda-anthraquinone processes at similar kappa number than non-prehydrolyzed kraft process. In D₀E_pD₁ bleaching sequences, delignification (DoEp kappa) and bleachability were better for prehydrolyzed A. auriculiformis pulp in the pulping processes studied. The lignin from prehydrolyzed wood chips was characterized with lower molecular weight and slightly higher phenolic hydroxyl group. This suggested the depolymerization of lignin in prehydrolysis process.

中文翻译：

---

预水解对金合欢木浆制浆和漂白的影响。前Benth。

制浆前的预水解在随后的脱木素和漂白中显示出有益的作用。相较于非预水解牛皮纸工艺，金合欢的预水解在苏打和苏打蒽醌工艺中产生的纸浆产率更高，卡伯值相似。在D ₀ E _p D _1的漂白过程中，预水解的金黄色曲霉纸浆在制浆过程中的脱木素作用（DoEp kappa）和可漂白性更好。来自预水解木片的木质素具有较低的分子量和略高的酚羟基特征。这表明木质素在预水解过程中解聚。