中国造纸2018，Vol.37Issue(4)：30-34,5.DOI:10.11980/j.issn.0254-508X.2018.04.006
磷酸预水解对竹柳主要组分含量的影响
Effect of Phosphoric Acid Addition in the Pre-hydrolysis Stage on the Main Component Contents of Bamboo-willow
摘要
Abstract
Pre-hydrolysis is a critical step in the production of dissolving pulp from the kraft process,and its main purpose is to hydrolyze the hemicelluloses as much as possible from cellulose fibers before subsequent pulping.In this paper,the effects of addition of phosphoric acid in the pre-hydrolysis process on the main component contents of bamboo-willow were explored.The result showed that with the addition of phosphoric acid in the pre-hydrolysis process of bamboo-willow and increasing the time at max temperature could help the removal of pentosan,but this was not conducive to the retention of or-cellulose.When the phosphoric acid dosage was 3％ (based on oven dried bamboo-willow),the max temperature was 165℃,the time at max temperature was 60 min,the pentosan content in the pre-hydrolyzed bamboo-willow was gradually decreasing,the or-cellulose content obviously increased as the liquid-to-wood ratio was 6∶ 1.关键词
竹柳/预水解/磷酸/聚戊糖Key words
bamboo-willow/pre-hydrolysis/phosphoric acid/pentosan分类
轻工纺织引用本文复制引用
张金超,吴朝军,于冬梅,仝瑞平..磷酸预水解对竹柳主要组分含量的影响[J].中国造纸,2018,37(4):30-34,5.基金项目
国家重点研发计划(2017YFB0307900) （2017YFB0307900）
山东省自然科学基金(ZR2017LC016). （ZR2017LC016）
