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Soda-AQ法苇浆氧气漂白
Study on the Oxygen Bleaching of SodaAQ Reed Pulp
【摘要】 进行Soda-AQ法苇浆氧漂前的硫酸、EDTA预处理试验,氧气漂白及氧漂浆的过氧化氢漂白试验,结果表明:苇浆中过渡金属离子含量高,氧漂前的硫酸预处理是提高苇浆漂白效果的有效措施;AOP、AOpP是适合于Soda-AQ苇浆的短序、全无氯漂白流程。
【Abstract】 Pretreatment of SodaAQ reed pulp with sulfuric acid and EDTA were conducted.Oxygen delignification and the subsequent hydrogen peroxide bleaching of the pulp were performed.The results showed that there were more transition metal ions in SodaAQ reed pulp than that in SodaAQ wheat straw pulp and the pretreatment before oxygen delignification with sulfuric acid played an important role on the upgrading of bleaching effects.Two suitable TCF bleaching processes,i.e..AOP and AOPP were suggested to bleach the reed pulp to a higher brightness.
【关键词】 Soda-AQ苇浆;
预处理;
过渡金属;
氧气漂白;
全无氯漂白;
【Key words】 SodaAQ reed pulp; pretreatment; transition metal; oxygen bleaching; TCF bleaching;
【Key words】 SodaAQ reed pulp; pretreatment; transition metal; oxygen bleaching; TCF bleaching;
【基金】 国家自然科学基金
- 【文献出处】 中国造纸 ,CHINA PULP & PAPER , 编辑部邮箱 ,1998年03期
- 【分类号】TS745
- 【被引频次】12
- 【下载频次】49