混合办公废纸漂白过程中DCS的生成机理  

The generation mechanism of DCS in the bleaching process of mixed office waste paper

作　　者：张春辉[1] 秦梦华[2] 詹怀宇[1] Holmbom B 徐春林 

机构地区：[1]华南理工大学制浆造纸工程国家重点实验室,广东广州510640 [2]山东轻工业学院制浆造纸工程省级重点学科,山东济南250100 [3]Forest Chemistry Lab.,bo Akademi University,Turku/bo,Finland

出　　处：《中华纸业》2007年第7期23-26,共4页China Pulp & Paper Industry

基　　金：国家自然科学基金资助项目(编号:20376042;20676047)

摘　　要：利用气-质联用技术研究了混合办公废纸漂白过程中溶解与胶体物质的生成机制。结果表明,过氧化氢漂白过程中释放出的糖基主要是葡萄糖,约占总糖基的50%;释放出的亲脂性物质主要是十六碳酸(又称软脂酸)、双(乙基己基)邻苯二甲酯,两者占总量的40%左右。FAS漂白过程中释放出的糖基主要是葡萄糖和木糖,但释放量较过氧化氢漂白低得多;释放出的亲脂性物质主要是十六碳酸、双(乙基己基)邻苯二甲酯、9-十八碳烯酸。The generation mechanism of dissolved and colloidal substances in the bleaching process of mixed office waste paper was investigated with gas chromatography-mass spectrometry technology. The results show that the glycosyl released in the hydrogen peroxide bleaching process was mainly glucose, which amounted to about 50% of the total carbohydrates and the lipophilic substances were mainly hexadecanoic acid （also called palmic acid） and bis（ethylhexyl） phthalate, which amounted to the 40% of the total. In the formamidine sulphinic acid （FAS） bleaching process, the released glycosyl was mainly glucose and xylose, the amount of which was much smaller than that in the hydrogen peroxide bleaching process and the lipophilic substances were mainly hexadecanoic acid, bis（ethylhexyl）-phthalate and 9-oleic acid.

关 键 词：办公废纸 气相色谱 碳水化合物 脂肪酸 树脂酸 溶解与胶体物质 

分 类 号：TS745[轻工技术与工程—制浆造纸工程] TS749.7